<font size=2 face="sans-serif">The statement was always to be release
n-1 compatible. with <b>r</b>elease being (V<b>R</b>MF) 4.<b>2</b>.3.0
</font><br><br><font size=2 face="sans-serif">so all 4.2 release levels ought to be
compatible with all 4.1 levels. </font><br><br><font size=2 face="sans-serif">As Felipe pointed out below, the mmchconfig
RELEASE=latest will not touch the filesystem level. </font><br><font size=2 face="sans-serif">And if you are running remote clusters,
you need to be aware, that lifting a filesystem to the latest level (mmchfs
<fs-name> -V full)</font><br><font size=2 face="sans-serif">you will loose remote clusters mount
ability if they are on a lower level. in these cases use the -V compat
flag (and see commands refernce for details)</font><br><br><font size=1 face="Arial"><br>Mit freundlichen Grüßen / Kind regards</font><p><font size=2 face="Arial"><b>Achim Rehor</b></font><p><table width=600 style="border-collapse:collapse;"><tr height=8><td width=600 colspan=4 style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px;"><div align=center><hr noshade></div><tr height=8><td width=600 colspan=4 style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px;"><font size=1 face="Arial"> </font><tr height=8><td width=496 colspan=3 style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px;"><font size=1 face="Arial">Software
Technical Support Specialist AIX/ Emea HPC Support</font><td width=103 rowspan=10 style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px;"><div align=right><img align=bottom src=cid:_1_DB0988D8DB098358002A53C2C1258130 style="border:0px solid;"></div><tr height=8><td width=496 colspan=3 style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px;"><font size=1 face="Arial">IBM
Certified Advanced Technical Expert - Power Systems with AIX</font><tr height=8><td width=496 colspan=3 style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px;"><font size=1 face="Arial">TSCC
Software Service, Dept. 7922</font><tr height=8><td width=496 colspan=3 style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px;"><font size=1 face="Arial">Global
Technology Services </font><tr height=8><td width=496 colspan=3 style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px;"><div align=center><hr noshade></div><tr height=8><td width=44 style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px;"><font size=1 color=#0060a0 face="Arial">Phone:</font><td width=195 style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px;"><font size=1 color=#0060a0 face="Arial">+49-7034-274-7862</font><td width=257 style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px;"><font size=1 color=#0060a0 face="Arial"> IBM
Deutschland</font><tr height=8><td width=44 style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px;"><font size=1 color=#0060a0 face="Arial">E-Mail:</font><td width=195 style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px;"><font size=1 color=#0060a0 face="Arial">Achim.Rehor@de.ibm.com</font><td width=257 style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px;"><font size=1 color=#0060a0 face="Arial"> Am
Weiher 24</font><tr height=8><td width=44 style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px;"><font size=1 color=#0060a0 face="Arial"> </font><td width=195 style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px;"><font size=1 color=#0060a0 face="Arial"> </font><td width=257 style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px;"><font size=1 color=#0060a0 face="Arial"> 65451
Kelsterbach</font><tr height=8><td width=44 style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px;"><font size=1 color=#0060a0 face="Arial"> </font><td width=195 style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px;"><font size=1 color=#0060a0 face="Arial"> </font><td width=257 style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px;"><font size=1 color=#0060a0 face="Arial"> Germany</font><tr height=8><td width=44 style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px;"><font size=1 color=#0060a0 face="Arial"> </font><td width=195 style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px;"><font size=1 color=#0060a0 face="Arial"> </font><td width=257 style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px;"><font size=1 color=#0060a0 face="Arial"> </font><tr height=8><td width=600 colspan=4 style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px;"><div align=center><hr noshade></div><tr height=8><td width=600 colspan=4 style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px;"><font size=1 face="Arial"> </font><tr height=8><td width=600 colspan=4 style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px;"><font size=1 color=#a2a2a2 face="Arial">IBM
Deutschland GmbH / Vorsitzender des Aufsichtsrats: Martin Jetter <br>Geschäftsführung: Martina Koederitz (Vorsitzende), Reinhard Reschke, Dieter
Scholz, Gregor Pillen, Ivo Koerner, Christian Noll <br>Sitz der Gesellschaft: Ehningen / Registergericht: Amtsgericht Stuttgart,
HRB 14562 WEEE-Reg.-Nr. DE 99369940 </font></table><br><p><font size=3> </font><br><br><br><br><font size=1 color=#5f5f5f face="sans-serif">From:
</font><font size=1 face="sans-serif">"Felipe Knop"
<knop@us.ibm.com></font><br><font size=1 color=#5f5f5f face="sans-serif">To:
</font><font size=1 face="sans-serif">gpfsug main discussion
list <gpfsug-discuss@spectrumscale.org></font><br><font size=1 color=#5f5f5f face="sans-serif">Date:
</font><font size=1 face="sans-serif">05/30/2017 04:54 AM</font><br><font size=1 color=#5f5f5f face="sans-serif">Subject:
</font><font size=1 face="sans-serif">Re: [gpfsug-discuss]
GPFS update path 4.1.1 -> 4.2.3</font><br><font size=1 color=#5f5f5f face="sans-serif">Sent by:
</font><font size=1 face="sans-serif">gpfsug-discuss-bounces@spectrumscale.org</font><br><hr noshade><br><br><br><font size=2 face="sans-serif">Tomasz,</font><font size=3><br></font><font size=2 face="sans-serif"><br>The statement below from "Concepts, Planning and Installation Guide"
was found to be incorrect and is being withdrawn from the publications.
The team is currently working on improvements to the guidance being
provided for migration.</font><font size=3><br></font><font size=2 face="sans-serif"><br>For a cluster which is <b>not </b>running protocols like NFS/SMB/Object,
migration of nodes one-at-a-time from 4.1.1 to 4.2.3 should work.
Once <b>all </b>nodes are migrated to 4.2.3, command</font><font size=3><br></font><font size=2 face="sans-serif"><b><br>mmchconfig release=LATEST</b></font><font size=3><br></font><font size=2 face="sans-serif"><br>can be issued to move the cluster to the 4.2.3 level. Note that
the command above will not change the file system level. The file system
can be moved to the latest level with command</font><font size=3><br></font><font size=2 face="sans-serif"><b><br>mmchfs <i>file-system-name</i> -V full </b></font><font size=3><br><br><br></font><font size=2><br>In other words: can two nodes, one with GPFS version 4.1.1 and the other
with version 4.2.3, coexist in the cluster, where nodes have not been migrated
to 4.2.3 (i.e. filesystem level is still at version 4.1.1)?</font><font size=3><br></font><font size=2 face="sans-serif"><br>That is expected to work.</font><font size=3><br></font><font size=2 face="sans-serif"><br> Felipe</font><font size=3><br></font><font size=2 face="sans-serif"><br>----<br>Felipe Knop
knop@us.ibm.com<br>GPFS Development and Security<br>IBM Systems<br>IBM Building 008<br>2455 South Rd, Poughkeepsie, NY 12601<br>(845) 433-9314 T/L 293-9314<br></font><font size=3><br><br><br><br></font><font size=1 color=#5f5f5f face="sans-serif"><br>From: </font><font size=1 face="sans-serif">"Tomasz.Wolski@ts.fujitsu.com"
<Tomasz.Wolski@ts.fujitsu.com></font><font size=1 color=#5f5f5f face="sans-serif"><br>To: </font><font size=1 face="sans-serif">"gpfsug-discuss@spectrumscale.org"
<gpfsug-discuss@spectrumscale.org></font><font size=1 color=#5f5f5f face="sans-serif"><br>Date: </font><font size=1 face="sans-serif">05/29/2017
04:24 PM</font><font size=1 color=#5f5f5f face="sans-serif"><br>Subject: </font><font size=1 face="sans-serif">[gpfsug-discuss]
GPFS update path 4.1.1 -> 4.2.3</font><font size=1 color=#5f5f5f face="sans-serif"><br>Sent by: </font><font size=1 face="sans-serif">gpfsug-discuss-bounces@spectrumscale.org</font><font size=3><br></font><hr noshade><font size=3><br><br></font><font size=2><br>Hello,<br> <br>We are planning to integrate new IBM Spectrum Scale version 4.2.3 into
our software, but in our current software release we have version 4.1.1
integrated. We are worried how would node-at-a-time updates look like when
our customer wanted to update his cluster from 4.1.1 to 4.2.3 version.<br>According to “Concepts, Planning and Installation Guide” (for 4.2.3),
there’s a limited compatibility between two GPFS versions and if they’re
not adjacent, then following update path is advised:<br> <br>“If you want to migrate to an IBM Spectrum Scale version that is not an
adjacent release of your current<br>version (for example, version 4.1.1.x to version 4.2.3), you can follow
this migration path depending on<br>your current version:<br>V 3.5 > V 4.1.0.x > V 4.1.1.x > V 4.2.0.x > V 4.2.1.x >
V 4.2.2.x > V 4.2.3.x”<br> <br> <br>My question is: is the above statement true even though on nodes where
new GPFS 4.2.3 is installed these nodes will not be migrated to latest
release with “mmchconfig release=LATEST” until all nodes in the cluster
will have been updated to version 4.2.3? <br>In other words: can two nodes, one with GPFS version 4.1.1 and the other
with version 4.2.3, coexist in the cluster, where nodes have not been migrated
to 4.2.3 (i.e. filesystem level is still at version 4.1.1)?<br> <br>Best regards,<br>Tomasz Wolski<br> </font><font size=2 color=#004080 face="sans-serif"><br>With best regards / Mit freundlichen Grüßen / Pozdrawiam<br> <b><br>Tomasz Wolski</b><br>Development Engineer<br>NDC Eternus CS HE (ET2)</font><font size=3><br></font><img src=cid:_1_DB11DE98DB11C508002A53C2C1258130 width=81 height=60 alt=cid:image002.gif@01CE62B9.8ACFA960 style="border:0px solid;"><font size=2 color=#004080 face="sans-serif"><b><br>FUJITSU</b><br>Fujitsu Technology Solutions Sp. z o.o.<br>Textorial Park Bldg C, ul. Fabryczna 17<br>90-344 Lodz, Poland</font><font size=2><br> </font><tt><font size=2>_______________________________________________<br>gpfsug-discuss mailing list<br>gpfsug-discuss at spectrumscale.org</font></tt><font size=3 color=blue><u><br></u></font><a href="http://gpfsug.org/mailman/listinfo/gpfsug-discuss"><tt><font size=2 color=blue><u>http://gpfsug.org/mailman/listinfo/gpfsug-discuss</u></font></tt></a><font size=3><br><br></font><tt><font size=2>_______________________________________________<br>gpfsug-discuss mailing list<br>gpfsug-discuss at spectrumscale.org<br></font></tt><a href="http://gpfsug.org/mailman/listinfo/gpfsug-discuss"><tt><font size=2>http://gpfsug.org/mailman/listinfo/gpfsug-discuss</font></tt></a><tt><font size=2><br></font></tt><br><br><BR>