<div dir="ltr"><div dir="ltr">The earliest name was Shark
because sharks cannot stop swimming. It developed wide striping across many disks and became TigerShark (hey, striped), .</div><div dir="ltr"><br></div><div dir="ltr">When the first SP systems came out it became MMFS (MultiMedia FS) and went into a few trials with Tokyo Island and one of the baby Bells to stream many videos. <br></div><div dir="ltr"><br></div><div dir="ltr">VideoCharger was a quick attempt to make some hardware for things like small hotels to stream digital content to rooms, but I think it got killed right before launch. <br></div><div dir="ltr"><br></div><div>After those attempts it moved from being just a research project to being a real product and got named GPFS (General Parallel FS). This launched us into the High Performance Computing sphere for some of the largest SP systems (on AIX) going into some national labs and other weather and research systems in 1998. This is the first time it has a full Posix interface instead of a specialized video streaming interface. It also became popular with things like banking systems for all its replication possibilities. It supported Oracle for many years until they worked out their own redundancy capabilities. The ESS hardware systems were sold as hardware embodiments using the GPFS software. The addition of a Linux implementation expanded the systems GPFS could run on. There were many innovations added to GPFS over the years for handling AFM replication, NFS exporting, and distributed striping for fast reconstruction of lost disks. (There are several other things I cannot remember at the moment.)<br></div><div><br></div><div>After many years of having no marketing division (i.e only word of mouth), IBM storage decided to get into the game and marketed it as IBM Spectrum Scale which has just been changed to IBM Storage Scale.</div><div><br></div><div>Cheers all,</div><div>Daniel McNabb.</div><div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Mar 22, 2023 at 6:19 PM Glen Corneau <<a href="mailto:gcorneau@us.ibm.com">gcorneau@us.ibm.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="msg-3287939612980746483">
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<div style="font-family:Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0);background-color:rgb(255,255,255)">
I think that product was Videocharger, but it used the multimedia file system striped across multiple SCSI-1 disks for streaming video performance IIRC!</div>
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<div style="font-family:Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0);background-color:rgb(255,255,255)">
Sure we're not talking about Tigershark? 😉</div>
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<br>
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<div style="font-family:Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
(and can't forget the cousin, PIOFS or Parallel I/O File System)</div>
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<div style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<span style="font-family:Arial,Helvetica,sans-serif;font-size:12pt">---</span></div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<div><span style="font-family:Arial,Helvetica,sans-serif;font-size:12pt">Glen Corneau</span></div>
<div><span style="font-family:Arial,Helvetica,sans-serif;font-size:12pt">Senior, Power Partner Technical Specialist (PTS-P)</span></div>
<div><span style="font-family:Arial,Helvetica,sans-serif;font-size:12pt">IBM Technology, North America</span></div>
<div><span style="font-family:Arial,Helvetica,sans-serif;font-size:12pt">Email: <a href="mailto:gcorneau@us.ibm.com" target="_blank">gcorneau@us.ibm.com</a></span></div>
<span style="font-family:Arial,Helvetica,sans-serif;font-size:12pt">Cell: 512-420-7988</span></div>
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<div id="m_-3287939612980746483divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> gpfsug-discuss <<a href="mailto:gpfsug-discuss-bounces@gpfsug.org" target="_blank">gpfsug-discuss-bounces@gpfsug.org</a>> on behalf of Ryan Novosielski <<a href="mailto:novosirj@rutgers.edu" target="_blank">novosirj@rutgers.edu</a>><br>
<b>Sent:</b> Wednesday, March 22, 2023 19:12<br>
<b>To:</b> gpfsug main discussion list <<a href="mailto:gpfsug-discuss@gpfsug.org" target="_blank">gpfsug-discuss@gpfsug.org</a>><br>
<b>Subject:</b> [EXTERNAL] Re: [gpfsug-discuss] How to: Show clients actively connected to a given NFS export (CES)</font>
<div> </div>
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The product formerly known as MMFS? -- #BlackLivesMatter ____ || \\UTGERS, |---------------------------*O*--------------------------- ||_// the State | Ryan Novosielski - novosirj@ rutgers. edu || \\ University | Sr. Technologist - 973/972. 0922
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The product formerly known as MMFS?
<div><br>
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--<br>
#BlackLivesMatter</div>
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____<br>
|| \\UTGERS, <span style="white-space:pre-wrap"> </span> |---------------------------*O*---------------------------<br>
||_// the State<span style="white-space:pre-wrap"> </span> | Ryan Novosielski - <a href="mailto:novosirj@rutgers.edu" target="_blank">novosirj@rutgers.edu</a><br>
|| \\ University | Sr. Technologist - 973/972.0922 (2x0922) ~*~ RBHS Campus<br>
|| \\ of NJ<span style="white-space:pre-wrap"> </span> | Office of Advanced Research Computing - MSB A555B, Newark<br>
`'</div>
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<div><br>
<blockquote type="cite">
<div>On Mar 22, 2023, at 17:30, Alec <<a href="mailto:anacreo@gmail.com" target="_blank">anacreo@gmail.com</a>> wrote:</div>
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<div>
<div dir="auto">Thanks for correction.. been using GPFS so long I forgot my basic NFS command.
<div dir="auto"><br>
</div>
<div dir="auto">Or that its now IBM Storage Scale and no longer Spectrum Scale or GPFS...</div>
<div dir="auto"><br>
</div>
<div dir="auto">As a note that info is a little unreliable, but if you take a daily snapshots and throw it all together it should give you something.</div>
<div dir="auto"><br>
</div>
<div dir="auto">Alternatively you can have most nfsd daemons log mounts and then scan the logs for a more reliable method.</div>
<div dir="auto"><br>
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<div dir="auto">
<div dir="auto">Alec</div>
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<div>
<div dir="ltr">On Wed, Mar 22, 2023, 2:00 PM Markus Stoeber <<a href="mailto:M.Stoeber@rz.uni-frankfurt.de" target="_blank">M.Stoeber@rz.uni-frankfurt.de</a>> wrote:<br>
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<div>
<div>Am 22.03.2023 um 21:45 schrieb Beckman, Daniel D:</div>
<div><br>
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<div>Hi,<br>
</div>
<div><br>
</div>
<div>showmount -a should do the trick, however the manpage notes that:</div>
<div><br>
</div>
<div>-a or --all</div>
<div> List both the client hostname or IP address and mounted directory in host:dir format. This info should not be considered reliable. See the notes on rmtab in rpc.mountd(8).<br>
</div>
<div><br>
</div>
<div>showmount -d could also be an option:</div>
<div><br>
</div>
<div>-d or --directories<br>
List only the directories mounted by some client.<br>
</div>
<div><br>
</div>
<div>Best regards,</div>
<div><br>
</div>
<div>Markus</div>
<div><br>
</div>
<blockquote type="cite">
<div>
<p>Thanks, but that shows the export list: a list of shares and the hosts / networks that have access. It does not show which of those clients are currently connected to a given share, as in have it mounted. </p>
<div> <br>
</div>
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<div>
<p><b>From:</b> gpfsug-discuss <a href="mailto:gpfsug-discuss-bounces@gpfsug.org" target="_blank"><gpfsug-discuss-bounces@gpfsug.org></a> <b>On Behalf Of </b>Alec<br>
<b>Sent:</b> Wednesday, March 22, 2023 4:23 PM<br>
<b>To:</b> gpfsug main discussion list <a href="mailto:gpfsug-discuss@gpfsug.org" target="_blank"><gpfsug-discuss@gpfsug.org></a><br>
<b>Subject:</b> Re: [gpfsug-discuss] How to: Show clients actively connected to a given NFS export (CES)</p>
</div>
</div>
<div> <br>
</div>
<div>
<div>
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</div>
</div>
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<div>
<p>showmount -e nfsserver </p>
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<div> <br>
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<div>
<p>Normal way to see that for an nfs server.</p>
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<div> <br>
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<div>
<p>On Wed, Mar 22, 2023, 1:13 PM Beckman, Daniel D <<a href="mailto:dbec@loc.gov" target="_blank">dbec@loc.gov</a>> wrote:</p>
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<div>
<p>This is probably a dumb question, but I could not find it in the documentation. We have certain NFS exports that we suspect are no longer used or needed but before removing we’d like to first check if any clients are currently mounting
them. (Not just what has access to those exports.) Are there commands that will show this?
</p>
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</div>
<p>Thanks,</p>
<p>Daniel</p>
<div> <br>
</div>
<div> <br>
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</blockquote>
<p><br>
</p>
<pre cols="72">--
Markus Stoeber
Systemmanagement AIX, Linux / Storagemanagement / Plattformintegration
Hochschulrechenzentrum der Johann Wolfgang Goethe-Universitaet
Abt. Basisdienste</pre>
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