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Hi All,
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<div class="">GPFS 5.0 was announced on Friday … and today:</div>
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<td class="ccHeader" style="padding: 15px 20px 10px 24px; width: 656px;"><span style="font-size: 24px; color: rgb(30, 57, 77); font-family: HelveticaNeue, Helvetica, Arial, sans-serif;" class="">IBM Spectrum Scale </span></td>
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<td style="padding: 0px 0px 10px 24px;" class=""><span style="font-size: 18px; font-weight: bold;" class=""><a href="https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.ibm.com%2Fsupport%2Fdocview.wss%3Fuid%3Dssg1S1011791%26myns%3Ds033%26mynp%3DOCSTXKQY%26mynp%3DOCSWJ00%26mync%3DE%26cm_sp%3Ds033-_-OCSTXKQY-OCSWJ00-_-E&data=02%7C01%7CKevin.Buterbaugh%40vanderbilt.edu%7C07b900d4a1aa4e92852e08d54634aa16%7Cba5a7f39e3be4ab3b45067fa80faecad%7C0%7C0%7C636492114479674351&sdata=i%2B8WSjOObZoaSpNLnEZLHq%2FqXwj%2BetYSJzojl9Rh%2FgQ%3D&reserved=0" style="color: rgb(65, 120, 190); font-family: HelveticaNeue, Helvetica, Arial, sans-serif; text-decoration: none;" class="">:
IBM Spectrum Scale: NFS operations may fail with IO-Error</a> <br class="">
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<td class="docAbstract" style="padding: 0px 0px 30px 24px; line-height: 1.7;"><span style="font-size: 16px; font-family: HelveticaNeue, Helvetica, Arial, sans-serif; color: rgb(70, 70, 70);" class="">IBM has identified an issue with IBM Spectrum Scale 5.0.0.0
Protocol support for NFSv3/v4 in which IO-errors may be returned to the NFS client if the NFS server accumulates file-descriptor resources beyond the defined limit. Accumulation of file descriptor resources will occur when NFSv3 file create operations are
sent against files that are already in use.</span></td>
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<div class="">Bob’s suggestion in a previous e-mail to the list about installing this on a test cluster is almost certainly very, VERY good advice. That’s certainly what we will do after the holiday break...</div>
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<div class="">Kevin</div>
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<blockquote type="cite" class="">
<div class="">On Dec 18, 2017, at 1:43 PM, Oesterlin, Robert <<a href="mailto:Robert.Oesterlin@nuance.com" class="">Robert.Oesterlin@nuance.com</a>> wrote:</div>
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<div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">
<span style="font-size: 12pt;" class="">The Scale 5.0 fix level is now up on Fix Central.<o:p class=""></o:p></span></div>
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<span style="font-size: 12pt;" class=""><o:p class=""> </o:p></span></div>
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<span style="font-size: 12pt;" class="">You need to be at Scale 4.2.3 (cluster level) to do a rolling upgrade to this level.<o:p class=""></o:p></span></div>
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<span style="font-size: 12pt;" class=""><o:p class=""> </o:p></span></div>
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<o:p class=""> </o:p></div>
<div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">
<span style="font-size: 12pt;" class="">Bob Oesterlin<o:p class=""></o:p></span></div>
<div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">
<span style="font-size: 12pt;" class="">Sr Principal Storage Engineer, Nuance<o:p class=""></o:p></span></div>
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<span style="font-size: 12pt;" class=""><o:p class=""> </o:p></span></div>
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<b class=""><span style="font-size: 12pt;" class="">From:<span class="Apple-converted-space"> </span></span></b><span style="font-size: 12pt;" class="">"<a href="mailto:dW-notify@us.ibm.com" style="color: rgb(16, 92, 182);" class="">dW-notify@us.ibm.com</a>"
<<a href="mailto:dW-notify@us.ibm.com" style="color: rgb(16, 92, 182);" class="">dW-notify@us.ibm.com</a>><br class="">
<b class="">Reply-To:<span class="Apple-converted-space"> </span></b>"<a href="mailto:dW-notify@us.ibm.com" style="color: rgb(16, 92, 182);" class="">dW-notify@us.ibm.com</a>" <<a href="mailto:dW-notify@us.ibm.com" style="color: rgb(16, 92, 182);" class="">dW-notify@us.ibm.com</a>><br class="">
<b class="">Date:<span class="Apple-converted-space"> </span></b>Monday, December 18, 2017 at 1:27 PM<br class="">
<b class="">Subject:<span class="Apple-converted-space"> </span></b>[EXTERNAL] [Forums] '<a href="mailto:gpfs@us.ibm.com" style="color: rgb(16, 92, 182);" class="">gpfs@us.ibm.com</a>' replied to the 'IBM Spectrum Scale V5.0 announcements' topic thread in the
'General Parallel File System - Announce (GPFS - Announce)' forum.<o:p class=""></o:p></span></div>
</div>
<div class="">
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<o:p class=""> </o:p></div>
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<a name="_MailOriginalBody" class=""></a><span class=""><span style="font-size: 10.5pt; font-weight: normal;" class=""><span id="cid:image001.png@01D37806.328EE9C0"><image001.png></span></span></span><span class=""><span style="font-size: 10.5pt; font-weight: normal;" class=""> </span></span><a href="https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Furldefense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttp-3A__www.ibm.com_developerworks_community_profiles_html_profileView.do-3Fuserid-3D060000T9GF%26d%3DDwMFaQ%26c%3Ddjjh8EKwHtOepW4Bjau0lKhLlu-DxM1dlgP0rrLsOzY%26r%3DLPDewt1Z4o9eKc86MXmhqX-45Cz1yz1ylYELF9olLKU%26m%3DNhoaaeH3JplrJ1i1QspT5guZgy9z5td9aMxzwKGQHXk%26s%3DYIpO2jniMJVXI1EqifZ-k4fMI36-_p1K5LqWeOadBT8%26e%3D&data=02%7C01%7CKevin.Buterbaugh%40vanderbilt.edu%7Ce3b77f1a2da5444db93e08d5464f9fa0%7Cba5a7f39e3be4ab3b45067fa80faecad%7C0%7C0%7C636492230304916652&sdata=4BVRC4gq9NXkxODASI9hJ5BV5dQQ94rUjzVc1fDndgs%3D&reserved=0" title="Open the profile of gpfs@us.ibm.com." style="color: rgb(16, 92, 182);" class=""><span class=""><span class="vcard"><span style="font-size: 10.5pt; font-weight: normal;" class="">gpfs@us.ibm.com</span></span></span><span class=""></span></a><span class=""><span style="font-size: 10.5pt; font-weight: normal;" class=""><span class="Apple-converted-space"> </span>replied
to the<span class="Apple-converted-space"> </span></span></span><a href="https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Furldefense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttp-3A__www.ibm.com_developerworks_community_forums_html_topic-3Fid-3D2ad27846-2D6a54-2D46ba-2D96f4-2D5d6afa0df3ab%26d%3DDwMFaQ%26c%3Ddjjh8EKwHtOepW4Bjau0lKhLlu-DxM1dlgP0rrLsOzY%26r%3DLPDewt1Z4o9eKc86MXmhqX-45Cz1yz1ylYELF9olLKU%26m%3DNhoaaeH3JplrJ1i1QspT5guZgy9z5td9aMxzwKGQHXk%26s%3D05bRl_SHFZieId6ukqofk_XzwZ2TSg3u-cqcGNRtobg%26e%3D&data=02%7C01%7CKevin.Buterbaugh%40vanderbilt.edu%7Ce3b77f1a2da5444db93e08d5464f9fa0%7Cba5a7f39e3be4ab3b45067fa80faecad%7C0%7C0%7C636492230304916652&sdata=eCCEi0WsUIaKWOw1BHWueMPQ5O1LF6rYFZnHouwvZ8Y%3D&reserved=0" title="Open original item" style="color: rgb(16, 92, 182);" class=""><span class=""><span style="font-size: 10.5pt; font-weight: normal;" class="">IBM
Spectrum Scale V5.0 announcements</span></span><span class=""></span></a><span class=""><span style="font-size: 10.5pt; font-weight: normal;" class=""><span class="Apple-converted-space"> </span>topic thread in the<span class="Apple-converted-space"> </span></span></span><a href="https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Furldefense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttp-3A__www.ibm.com_developerworks_community_forums_html_forum-3Fid-3D11111111-2D0000-2D0000-2D0000-2D000000001606%26d%3DDwMFaQ%26c%3Ddjjh8EKwHtOepW4Bjau0lKhLlu-DxM1dlgP0rrLsOzY%26r%3DLPDewt1Z4o9eKc86MXmhqX-45Cz1yz1ylYELF9olLKU%26m%3DNhoaaeH3JplrJ1i1QspT5guZgy9z5td9aMxzwKGQHXk%26s%3DzTY2WRO7GKP5fnLAU4K3cXg1K1VGjYOzoIDeei4xr_U%26e%3D&data=02%7C01%7CKevin.Buterbaugh%40vanderbilt.edu%7Ce3b77f1a2da5444db93e08d5464f9fa0%7Cba5a7f39e3be4ab3b45067fa80faecad%7C0%7C0%7C636492230304916652&sdata=uxfVFydD9TI9l6%2BF%2F3rP7y%2F9Uo0NnBNlmr2tiMrEzbM%3D&reserved=0" title="Open original item" style="color: rgb(16, 92, 182);" class=""><span class=""><span style="font-size: 10.5pt; font-weight: normal;" class="">General
Parallel File System - Announce (GPFS - Announce)</span></span><span class=""></span></a><span class=""><span style="font-size: 10.5pt; font-weight: normal;" class=""><span class="Apple-converted-space"> </span>forum.<o:p class=""></o:p></span></span></h1>
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<p class=""><span class=""><span style="font-size: 9pt;" class="">IBM Spectrum Scale 5.0.0.0 is now available from IBM Fix Central:<o:p class=""></o:p></span></span></p>
<p class=""><span class=""></span><a href="https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Furldefense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttp-3A__www-2D933.ibm.com_support_fixcentral%26d%3DDwMFaQ%26c%3Ddjjh8EKwHtOepW4Bjau0lKhLlu-DxM1dlgP0rrLsOzY%26r%3DLPDewt1Z4o9eKc86MXmhqX-45Cz1yz1ylYELF9olLKU%26m%3DNhoaaeH3JplrJ1i1QspT5guZgy9z5td9aMxzwKGQHXk%26s%3DiHlfdUOajEj49dqjhXGjZLG-1gZmSCZX2ZaKXFzn7n4%26e%3D&data=02%7C01%7CKevin.Buterbaugh%40vanderbilt.edu%7Ce3b77f1a2da5444db93e08d5464f9fa0%7Cba5a7f39e3be4ab3b45067fa80faecad%7C0%7C0%7C636492230304916652&sdata=cAwptvUoVH%2B57%2Fat%2FZgt3ft8Gv%2FLsNRWXQzv%2BiuAFuQ%3D&reserved=0" style="color: rgb(16, 92, 182);" class=""><span class=""><span style="font-size: 9pt;" class="">http://www-933.ibm.com/support/fixcentral</span></span><span class=""></span></a><span class=""><span style="font-size: 9pt;" class=""><o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">This topic summarizes changes to the IBM Spectrum Scale licensed<span class="Apple-converted-space"> </span><br class="">
program and the IBM Spectrum Scale library.<span class="Apple-converted-space"> </span><o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">Summary of changes<span class="Apple-converted-space"> </span><br class="">
for IBM Spectrum Scale version 5 release 0.0<span class="Apple-converted-space"> </span><br class="">
as updated, April 2017<span class="Apple-converted-space"> </span><o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">Changes to this release of the IBM Spectrum Scale licensed<span class="Apple-converted-space"> </span><br class="">
program and the IBM Spectrum Scale library include the following:<span class="Apple-converted-space"> </span><o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">Added DMPs for TIP events<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> A topic is added listing the directed maintenance procedures for TIP events.<span class="Apple-converted-space"> </span><br class="">
The DMPs help users resolve issues caused due to TIP events.<span class="Apple-converted-space"> </span><o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">AFM and AFM DR<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> - Compression and snapshot ILM policy supported.<span class="Apple-converted-space"> </span><br class="">
- A general recommendation added for the Gateway node.<span class="Apple-converted-space"> </span><br class="">
- Configuration parameters added - afmMaxParallelRecoveries, afmAsyncOpWaitTimeout,<span class="Apple-converted-space"> </span><br class="">
afmSyncOpWaitTimeout, and afmRevalOpWaitTimeout.<span class="Apple-converted-space"> </span><br class="">
- Configuration parameters modified - afmRPO and afmHashVersion.<span class="Apple-converted-space"> </span><o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">Authentication: Authentication packages<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> Updated the authentication page to include packages specific to Ubuntu.<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">Authentication: AD-based authentication<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> New information is added on NFS with server-side group<span class="Apple-converted-space"> </span><br class="">
lookup and Active Directory authentication.<span class="Apple-converted-space"> </span><o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">Authentication: Primary group selection configurable for AD + RFC2307 based authentication<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> Ability to choose primary group as set in "UNIX attributes" of a user on<span class="Apple-converted-space"> </span><br class="">
Active Directory introduced with AD + RFC2307 based authentication scheme.<span class="Apple-converted-space"> </span><br class="">
Earlier, Windows primary group was by default selected as the primary group.<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">Big data and analytics<span class="Apple-converted-space"> </span><br class="">
- The GPFS Ambari integration package is now called the IBM Spectrum<span class="Apple-converted-space"> </span><br class="">
Scale Ambari management pack (in short, management pack or MPack).<span class="Apple-converted-space"> </span><br class="">
- IBM Spectrum Scale Ambari management pack version 2.4.2.1 with<span class="Apple-converted-space"> </span><br class="">
HDFS Transparency version 2.7.3.1 supports BI 4.2/BI 4.2.5 IOP migration<span class="Apple-converted-space"> </span><br class="">
to HDP 2.6.2.<span class="Apple-converted-space"> </span><br class="">
- Supports the remote mount configuration in Ambari.<span class="Apple-converted-space"> </span><br class="">
- Supports the multiple file systems configuration. In management<span class="Apple-converted-space"> </span><br class="">
pack version 2.4.2.1, the current limit is two file systems.<span class="Apple-converted-space"> </span><br class="">
- The Short circuit write is supported for better performance.<span class="Apple-converted-space"> </span><br class="">
- In HDFS Transparency, the Ranger performance is enhanced.<span class="Apple-converted-space"> </span><o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">Changes to IBM Spectrum Scale management API<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> Added the following new commands:<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> GET /perfmon/data<span class="Apple-converted-space"> </span><br class="">
GET /filesystems/{filesystemName}/afm/state<span class="Apple-converted-space"> </span><br class="">
DELETE /nodes/{name}<span class="Apple-converted-space"> </span><br class="">
POST /nodes<span class="Apple-converted-space"> </span><br class="">
GET /nodeclasses<span class="Apple-converted-space"> </span><br class="">
POST /nodeclasses<span class="Apple-converted-space"> </span><br class="">
DELETE /nodeclasses/{nodeclassName}<span class="Apple-converted-space"> </span><br class="">
GET /nodeclasses/{nodeclassName}<span class="Apple-converted-space"> </span><br class="">
PUT /nodeclasses/{nodeclassName}<span class="Apple-converted-space"> </span><br class="">
DELETE /jobs/jobId<span class="Apple-converted-space"> </span><br class="">
POST /filesystems/{filesystemName}/filesets/{filesetName}/psnaps<span class="Apple-converted-space"> </span><br class="">
DELETE /filesystems/{filesystemName}/filesets/{filesetName}/psnaps/{snapshotName}<span class="Apple-converted-space"> </span><br class="">
GET /thresholds<span class="Apple-converted-space"> </span><br class="">
GET /thresholds/{name}<span class="Apple-converted-space"> </span><br class="">
POST /thresholds<span class="Apple-converted-space"> </span><br class="">
DELETE /thresholds/{name}<span class="Apple-converted-space"> </span><o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">IBM Spectrum Scale GUI changes<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> - Added new Networks page to monitor the performance, configuration, and<span class="Apple-converted-space"> </span><br class="">
adapters of network configurations in the cluster. You can monitor the<span class="Apple-converted-space"> </span><br class="">
network performance with respect to the IP and RDMA interfaces used in the configuration.<span class="Apple-converted-space"> </span><br class="">
- Added new Monitoring > Thresholds page to create and monitor the threshold rules<span class="Apple-converted-space"> </span><br class="">
that are defined in the system.<span class="Apple-converted-space"> </span><br class="">
- Added Access > Remote Connections page to enable the GUI node of the<span class="Apple-converted-space"> </span><br class="">
local cluster to monitor the remote cluster by establishing a connection<span class="Apple-converted-space"> </span><br class="">
with the GUI node of the remote cluster.<span class="Apple-converted-space"> </span><br class="">
- Added Settings > Call Home page to configure call home. Configuring<span class="Apple-converted-space"> </span><br class="">
the call home feature helps the IBM® Support to monitor the system.<span class="Apple-converted-space"> </span><br class="">
Configuring call home also helps to reduce the response time of the<span class="Apple-converted-space"> </span><br class="">
IBM Support to resolve any issues.<span class="Apple-converted-space"> </span><br class="">
The diagnostic data that is downloaded through the Settings > Diagnostic Data<span class="Apple-converted-space"> </span><br class="">
can be uploaded to a problem management record (PMR) by using<span class="Apple-converted-space"> </span><br class="">
the call home feature in the backend. To upload the diagnostic data, right-click<span class="Apple-converted-space"> </span><br class="">
the relevant data set from the Previously Collected Diagnostic Data, and<span class="Apple-converted-space"> </span><br class="">
select Upload to PMR.<span class="Apple-converted-space"> </span><br class="">
- Added file system creation capabilities in GUI. Use the Files > File Systems > Create File System<span class="Apple-converted-space"> </span><br class="">
option to launch the Create File System wizard. In the Create File System wizard, you can specify<span class="Apple-converted-space"> </span><br class="">
the following details of the file system:<span class="Apple-converted-space"> </span><br class="">
- File system name<span class="Apple-converted-space"> </span><br class="">
- Storage pools<span class="Apple-converted-space"> </span><br class="">
- NSDs for the file systems<span class="Apple-converted-space"> </span><br class="">
- Failure groups<span class="Apple-converted-space"> </span><br class="">
- NSD order for data writes<span class="Apple-converted-space"> </span><br class="">
- Maximum number of Spectrum Scale clients<span class="Apple-converted-space"> </span><br class="">
- Maximum number of inodes of the root fileset<span class="Apple-converted-space"> </span><br class="">
- Whether to enable quota and scope for the quota definition<span class="Apple-converted-space"> </span><br class="">
- Whether to enable DMAPI<span class="Apple-converted-space"> </span><br class="">
- Mount point and automatic mount mode<span class="Apple-converted-space"> </span><br class="">
- Added the aggregation levels Access Point and Filesets and removed Account<span class="Apple-converted-space"> </span><br class="">
for the resource type Transparent Cloud Tiering in the Monitoring > Statisitics page.<span class="Apple-converted-space"> </span><br class="">
- The Files > Transparent Cloud Tiering page now displays the file systems<span class="Apple-converted-space"> </span><br class="">
and filesets that are mapped with the cloud service. It also shows the<span class="Apple-converted-space"> </span><br class="">
connection of such a container pair configuration to a cloud account and<span class="Apple-converted-space"> </span><br class="">
the corresponding CSAP that is configured for the cloud account.<span class="Apple-converted-space"> </span><br class="">
- Changes to capacity monitoring in the GUI<span class="Apple-converted-space"> </span><br class="">
- Moved the Capacity page from Monitoring to Files menu in the navigation<span class="Apple-converted-space"> </span><br class="">
and renamed the GUI page to User Capacity.<span class="Apple-converted-space"> </span><br class="">
- Only the file data user capacity can be viewed from the Files > User Capacity page.<span class="Apple-converted-space"> </span><br class="">
Removed the pools, filesets, file system capacity monitoring options from the Files > User Capacity page.<span class="Apple-converted-space"> </span><br class="">
You can monitor the capacity of these components from the respective GUI pages.<span class="Apple-converted-space"> </span><br class="">
- Replaced the GPFSPoolCap sensor with the GPFSPool sensor and separate data and metadata<span class="Apple-converted-space"> </span><br class="">
level capacity monitoring are introduced in the performance charts available in the<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> Files > File Systems and Storage > Pools pages.<span class="Apple-converted-space"> </span><br class="">
- New GPFSPool-based data and metadata performance monitoring metrics are available<span class="Apple-converted-space"> </span><br class="">
for selection in the Files > Statistics > Edit > Capacity section.<span class="Apple-converted-space"> </span><br class="">
You need to select the aggregation level as Pool to view these metrics.<span class="Apple-converted-space"> </span><br class="">
- AFM monitoring changes in the GUI<span class="Apple-converted-space"> </span><br class="">
- Provides the number of AFM filesets and the corresponding export server maps.<span class="Apple-converted-space"> </span><br class="">
Each export map establishes a mapping between the gateway node and the NFS<span class="Apple-converted-space"> </span><br class="">
host name to allow parallel data transfers from cache to home.<span class="Apple-converted-space"> </span><br class="">
- By using the Request Access option available in the Files > Active File Management<span class="Apple-converted-space"> </span><br class="">
or Access > Remote Connection page in the GUI, you can now establish connection with remote clusters.<span class="Apple-converted-space"> </span><br class="">
After establishing the connection, you can monitor the following AFM and AFM DR<span class="Apple-converted-space"> </span><br class="">
configuration details across clusters:<span class="Apple-converted-space"> </span><br class="">
* On home and secondary, you can see the AFM relationships configuration,<span class="Apple-converted-space"> </span><br class="">
health status, and performance values of the Cache and Disaster Recovery grids.<span class="Apple-converted-space"> </span><br class="">
* On the Overview tab of the detailed view, the available home and secondary inodes are available.<span class="Apple-converted-space"> </span><br class="">
* On the Overview tab of the detailed view, the details such as NFS throughput,<span class="Apple-converted-space"> </span><br class="">
IOPs, and latency details are available, if the protocol is NFS.<span class="Apple-converted-space"> </span><br class="">
- New option to create AFM peer snapshots through GUI. Use the Create Peer Snapshot option<span class="Apple-converted-space"> </span><br class="">
in the Files > Snapshots page to create peer snapshots. You can view and delete these peer snapshots from<span class="Apple-converted-space"> </span><br class="">
the Snapshots page and also from the detailed view of the Files > Active File Management page.<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">Encryption: GSKit V8 improves cryptographic performance on IBM POWER8<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> The IBM Global Security Kit (GSKit) Version 8 and later improves cryptographic performance<span class="Apple-converted-space"> </span><br class="">
on IBM POWER8 hardware. The version of GSKit that is shipped with IBM Spectrum Scale v5.0.0<span class="Apple-converted-space"> </span><br class="">
offers better performance on POWER8, compared with the versions shipped with earlier releases.<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">File compression: The lz4 library provides fast access to compressed data<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> File compression supports the lz4 compression library. Lz4 is intended primarily for active data and<span class="Apple-converted-space"> </span><br class="">
favors read-access speed over maximized space saving.<span class="Apple-converted-space"> </span><o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">File data: Block and subblock sizes improve I/O performance and reduce fragmentation<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> The default block size is larger, 4 MiB instead of 256 KiB, and the sizes of subblocks relative to blocks<span class="Apple-converted-space"> </span><br class="">
s are smaller, for example, 8 KiB subblocks in a 4 MiB block. A larger block size improves the<span class="Apple-converted-space"> </span><br class="">
file system performance and a smaller subblock size reduces the amount of unused space. For many business<span class="Apple-converted-space"> </span><br class="">
applications, the default value of 4 MiB provides the best balance of improved performance<span class="Apple-converted-space"> </span><br class="">
and reduced fragmentation.<span class="Apple-converted-space"> </span><o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">File encryption: AES-XTS encryption is faster on x86 in non-FIPS mode<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> On x86 architecture in non-FIPS mode, file encryption with the AES algorithm in XTS mode<span class="Apple-converted-space"> </span><br class="">
is faster than it was.<span class="Apple-converted-space"> </span><o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">File systems: File system rebalancing is faster<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> Rebalancing is implemented by a lenient round-robin method that typically runs faster than the<span class="Apple-converted-space"> </span><br class="">
previously used method of strict round robin. The strict round robin method is available as an option.<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">installation toolkit changes<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> - The installation toolkit has added support for the installation and the deployment<span class="Apple-converted-space"> </span><br class="">
of IBM Spectrum Scale in a cluster containing Elastic Storage Server (ESS).<span class="Apple-converted-space"> </span><br class="">
- The installation toolkit has added support for enabling and configuring call home.<span class="Apple-converted-space"> </span><br class="">
- The installation toolkit has added support for enabling and configuring file audit logging.<span class="Apple-converted-space"> </span><br class="">
- The installation toolkit has added support for the installation and the<span class="Apple-converted-space"> </span><br class="">
deployment of IBM Spectrum Scale on Ubuntu 16.04 LTS nodes.<span class="Apple-converted-space"> </span><br class="">
- The installation toolkit has added verification of passwordless SSH during<span class="Apple-converted-space"> </span><br class="">
prechecks before installation, deployment, or upgrade.<span class="Apple-converted-space"> </span><br class="">
- The installation toolkit has added support for cumulative object upgrade.<span class="Apple-converted-space"> </span><o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">mmafmctl command<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> The --outband parameter is deprecated.<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">mmcallhome command: Enhancements<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> - Addition of -Y option<span class="Apple-converted-space"> </span><br class="">
* The -Y displays the command output in a parseable format with a colon (:) as a field delimiter.<span class="Apple-converted-space"> </span><br class="">
- Addition of --pmr option<span class="Apple-converted-space"> </span><br class="">
* The --pmr option allows you to upload data to existing PMRs using the<span class="Apple-converted-space"> </span><br class="">
mmcallhome run SendFile command.<span class="Apple-converted-space"> </span><o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">mmchconfig command: Enhancements<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> - Encrypted files can be copied into an LROC device<span class="Apple-converted-space"> </span><br class="">
* With the lrocEnableStoringClearText attribute, you can control whether file<span class="Apple-converted-space"> </span><br class="">
data from encrypted files, which is held in memory as cleartext, is<span class="Apple-converted-space"> </span><br class="">
copied into a local read-only cache (LROC) device.<span class="Apple-converted-space"> </span><br class="">
- InfiniBand addresses can be specified for RDMA transfers<span class="Apple-converted-space"> </span><br class="">
* In the verbsPorts attribute, you can specify InfiniBand addresses<span class="Apple-converted-space"> </span><br class="">
for RDMA transfers between an NSD client and server.<span class="Apple-converted-space"> </span><o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">mmchnsd command: Change NSDs without unmounting the file system<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> When you add or remove NSDs or do other operations with mmchnsd,<span class="Apple-converted-space"> </span><br class="">
you do not need to unmount the file system.<span class="Apple-converted-space"> </span><o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">mmcrfs command: Enhancements<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> - The default data block size is 4 MiB with an 8 KiB subblock size<span class="Apple-converted-space"> </span><br class="">
* If no block size is specified, a file system is created with a 4 MiB block size and an<span class="Apple-converted-space"> </span><br class="">
8 KiB subblock size. The minimum release level (minReleaseLevel) of the<span class="Apple-converted-space"> </span><br class="">
cluster must be 5.0.0 or greater when the file system is created.<span class="Apple-converted-space"> </span><br class="">
- The default log file size depends on block size and metadata size<span class="Apple-converted-space"> </span><br class="">
* If the block size is 512 KiB or larger and the metadata block size 256 KiB or larger,<span class="Apple-converted-space"> </span><br class="">
then the default log file size is 32 MiB. Otherwise, the default log file<span class="Apple-converted-space"> </span><br class="">
size is 4 MiB or the metadata block size, whichever is larger.<span class="Apple-converted-space"> </span><br class="">
- The default method for updating atime is relatime<span class="Apple-converted-space"> </span><br class="">
* If the minimum release level (minReleaseLevel) of the cluster is 5.0.0 or greater<span class="Apple-converted-space"> </span><br class="">
when the file system is created, the default method for updating atime is relatime.<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">mmdsh command: Several options are no longer supported<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> The --ignoreSignal, -I, and -d options are no longer supported.<span class="Apple-converted-space"> </span><br class="">
Do not use these options unless instructed to by IBM support personnel.<span class="Apple-converted-space"> </span><o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">mmfsck command: Display an interim status report at any time<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> While a long-running instance of mmfsck is in progress, you can start another instance<span class="Apple-converted-space"> </span><br class="">
of mmfsck with the --status-report parameter to display current<span class="Apple-converted-space"> </span><br class="">
status information from all the nodes that are participating in the mmfsck run.<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">mmgetstate command: Display the unresponsive state<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> The command returns the unresponsive state when the GPFS<span class="Apple-converted-space"> </span><br class="">
daemon is running but is not responding.<span class="Apple-converted-space"> </span><o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">mmhealth command: Addition to measurement options<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> Measurement options for filesystem, SMB node, and NFS node<span class="Apple-converted-space"> </span><br class="">
has been added to the mmhealth command.<span class="Apple-converted-space"> </span><o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">mmkeyserv command: The simplified method supports certificate chains from a certificate authority.<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> In the simplified method, with the --kmip-cert parameter, you can set up encryption with IBM®<span class="Apple-converted-space"> </span><br class="">
Security Key Lifecycle Manager (SKLM) as the key management server and with a certificate signed<span class="Apple-converted-space"> </span><br class="">
by a certificate authority (CA) on the KMIP port of the SKLM server.<span class="Apple-converted-space"> </span><o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">mmnetverify command: Enhancements<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> - Verify the network operation of nodes in a subnet<span class="Apple-converted-space"> </span><br class="">
* With the --subnets parameters, you can specify the subnet<span class="Apple-converted-space"> </span><br class="">
addresses of the nodes that you want to verify.<span class="Apple-converted-space"> </span><br class="">
- Verify that nodes can handle a new MTU size<span class="Apple-converted-space"> </span><br class="">
* With the ping-packet-size parameter, you can specify the size<span class="Apple-converted-space"> </span><br class="">
of the ICMP echo request packets that are sent between local node and the target<span class="Apple-converted-space"> </span><br class="">
node during the ping test.<span class="Apple-converted-space"> </span><o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">mmtracectl command: Display the tracing status<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> The --status parameter displays the tracing status of the specified nodes.<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">New feature for threshold monitoring<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> Starting from IBM Spectrum Scale version 5.0.0, if multiple thresholds rules<span class="Apple-converted-space"> </span><br class="">
have overlapping entities for the same metrics, only one of the concurrent rules is<span class="Apple-converted-space"> </span><br class="">
made actively eligible.<span class="Apple-converted-space"> </span><o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">NFS: Dynamic export changes<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> You can dynamically change the export configuration without restarting the NFS service.<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">Object<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> - Support for Ubuntu<span class="Apple-converted-space"> </span><br class="">
- Support for sudo wrapper for Object on Ubuntu<span class="Apple-converted-space"> </span><br class="">
- Support for cumulative upgrades from older versions<span class="Apple-converted-space"> </span><br class="">
- Object snap enhancement to contain keystore logs<span class="Apple-converted-space"> </span><o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">Protocol support: Enhanced<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> Protocol support is extended to Ubuntu 10.04<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">Setting up a system for storing crash files for Ubuntu<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> A topic is added to describe how to set up a system for storing crash files for Ubuntu.<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">SMB: DFS redirects for SMB shares<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> New option to configure DFS redirects for SMB shares.<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">SMB: SMB server upgrade changes<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> Two events on CTDB version match/mismatch are added to the RAS events.<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">Sudo wrappers: Root-level processes can call administration commands directly<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> Root-level background processes, such as cron and callback programs, can<span class="Apple-converted-space"> </span><br class="">
successfully call administration commands directly rather than through sudo<span class="Apple-converted-space"> </span><br class="">
when sudo wrappers are enabled.<span class="Apple-converted-space"> </span><o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">Supported clients for NFS<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> A topic is added listing the clients that are supported by NFS protocol.<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">Transparent cloud tiering<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> - Support for multiple cloud storage accounts<span class="Apple-converted-space"> </span><br class="">
- Support for multiple file systems or filesets per node group<span class="Apple-converted-space"> </span><br class="">
- Enhanced support for large file systems provided by container spillover<span class="Apple-converted-space"> </span><br class="">
- Support for associating file sets with containers for enhanced granularity<span class="Apple-converted-space"> </span><br class="">
- Multiple URL and region support at the node level<span class="Apple-converted-space"> </span><br class="">
- Support for creating a cloud service separately for tiering and sharing operations.<span class="Apple-converted-space"> </span><br class="">
- Unique encryption key per cloud container<span class="Apple-converted-space"> </span><br class="">
- Support for remotely mounted clients.<span class="Apple-converted-space"> </span><br class="">
- Support for Amazon S3 regions requiring Sigv4 security support,<span class="Apple-converted-space"> </span><br class="">
including the US government cloud region.<span class="Apple-converted-space"> </span><br class="">
- Ability to enable or disable transparent recall for files for a given file<span class="Apple-converted-space"> </span><br class="">
system instantly, without having to rewrite a policy.<span class="Apple-converted-space"> </span><br class="">
- Support for backing up and restoring the Cloud services configuration in case of any disaster.<span class="Apple-converted-space"> </span><br class="">
- Support for backing up the Cloud services database to the cloud.<span class="Apple-converted-space"> </span><br class="">
- Support for restoring Transparent cloud tiering service on an identical backup cluster.<span class="Apple-converted-space"> </span><br class="">
- Support for checking the integrity of the Cloud services<span class="Apple-converted-space"> </span><br class="">
database after any system crash or outage.<span class="Apple-converted-space"> </span><br class="">
- Support for auditing events relating to each operation performed in Cloud services.<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">New commands<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> mmaudit mmmsgqueue<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">Changed commands<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> mmafmctl mmadddisk mmcallhome mmchattr mmchcluster mmchconfig mmchfs mmchnsd<span class="Apple-converted-space"> </span><br class="">
mmcloudgateway mmcrcluster mmcrfs mmdeldisk mmdsh mmfsck mmgetstate<span class="Apple-converted-space"> </span><br class="">
mmkeyserv mmnetverify mmnfs mmrestripefile mmrestripefs mmsmb mmtracectl<span class="Apple-converted-space"> </span><br class="">
mmuserauth<span class="Apple-converted-space"> </span><o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">Deleted commands<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> mmrest<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">New messages<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> 6027-1264, 6027-1757, 6027-2394, 6027-2395, 6027-2396, 6027-2397<span class="Apple-converted-space"> </span><br class="">
6027-2398, 6027-2399, 6027-2400, 6027-2401, 6027-3259, 6027-3408<span class="Apple-converted-space"> </span><br class="">
6027-3597, 6027-3598, 6027-3599, 6027-3600, 6027-3601, 6027-3602<span class="Apple-converted-space"> </span><br class="">
6027-3603, 6027-3604, 6027-3730, 6027-3921, 6027-3922, 6027-3923<span class="Apple-converted-space"> </span><br class="">
6027-3924, 6027-3925, 6027-3926, 6027-3927, 6027-3928<span class="Apple-converted-space"> </span><br class="">
6027-3929, 6027-3930, 6027-3931, 6027-4019<span class="Apple-converted-space"> </span><o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class="">Changed messages<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> 6027-928<o:p class=""></o:p></span></span></p>
<p class=""><span class=""><span style="font-size: 9pt;" class=""> <span class="Apple-converted-space"> </span><o:p class=""></o:p></span></span></p>
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