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Richard,
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<div class="">I will second what Bob said with one caveat … on one occasion we had an issue with our multi-cluster setup because the PTF’s were incompatible. However, that was clearly documented in the release notes, which we obviously hadn’t read carefully
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<div class="">While we generally do rolling upgrades over a two to three week period, we have run for months with clients at differing PTF levels. HTHAL…</div>
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<div class="">Kevin</div>
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<div class="">On Aug 15, 2016, at 6:22 AM, Oesterlin, Robert <<a href="mailto:Robert.Oesterlin@nuance.com" class="">Robert.Oesterlin@nuance.com</a>> wrote:</div>
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<span style="font-family: Helvetica;" class="">In general, yes, it's common practice to do the 'rolling upgrades'. If I had to do my whole cluster at once, with an outage, I'd probably never upgrade. :)<o:p class=""></o:p></span></div>
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<span style="font-size: 10.5pt; font-family: Helvetica;" class="">Bob Oesterlin<br class="">
Sr Storage Engineer, Nuance HPC Grid<o:p class=""></o:p></span></div>
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<b class=""><span style="" class="">From:<span class="Apple-converted-space"> </span></span></b><span style="" class=""><<a href="mailto:gpfsug-discuss-bounces@spectrumscale.org" style="color: rgb(149, 79, 114); text-decoration: underline;" class="">gpfsug-discuss-bounces@spectrumscale.org</a>>
on behalf of "Sobey, Richard A" <<a href="mailto:r.sobey@imperial.ac.uk" style="color: rgb(149, 79, 114); text-decoration: underline;" class="">r.sobey@imperial.ac.uk</a>><br class="">
<b class="">Reply-To:<span class="Apple-converted-space"> </span></b>gpfsug main discussion list <<a href="mailto:gpfsug-discuss@spectrumscale.org" style="color: rgb(149, 79, 114); text-decoration: underline;" class="">gpfsug-discuss@spectrumscale.org</a>><br class="">
<b class="">Date:<span class="Apple-converted-space"> </span></b>Monday, August 15, 2016 at 4:59 AM<br class="">
<b class="">To:<span class="Apple-converted-space"> </span></b>"'<a href="mailto:gpfsug-discuss@spectrumscale.org" style="color: rgb(149, 79, 114); text-decoration: underline;" class="">gpfsug-discuss@spectrumscale.org</a>'" <<a href="mailto:gpfsug-discuss@spectrumscale.org" style="color: rgb(149, 79, 114); text-decoration: underline;" class="">gpfsug-discuss@spectrumscale.org</a>><br class="">
<b class="">Subject:<span class="Apple-converted-space"> </span></b>[EXTERNAL] [gpfsug-discuss] Minor GPFS versions coexistence problems?</span><span style="font-size: 12pt;" class=""><o:p class=""></o:p></span></div>
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<span lang="EN-GB" class="">Hi all,<o:p class=""></o:p></span></div>
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<span lang="EN-GB" class="">If I wanted to upgrade my NSD nodes one at a time from 3.5.0.22 to 3.5.0.27 (or whatever the latest in that branch is) am I ok to stagger it over a few days, perhaps up to 2 weeks or will I run into problems if they’re on different
versions?<o:p class=""></o:p></span></div>
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<span lang="EN-GB" class="">Cheers<o:p class=""></o:p></span></div>
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<span lang="EN-GB" class="">Richard<o:p class=""></o:p></span></div>
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<span style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); float: none; display: inline !important;" class="">_______________________________________________</span><br style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255);" class="">
<span style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); float: none; display: inline !important;" class="">gpfsug-discuss
mailing list</span><br style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255);" class="">
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at<span class="Apple-converted-space"> </span></span><a href="http://spectrumscale.org/" style="color: rgb(149, 79, 114); text-decoration: underline; font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255);" class="">spectrumscale.org</a><br style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255);" class="">
<a href="http://gpfsug.org/mailman/listinfo/gpfsug-discuss" style="color: rgb(149, 79, 114); text-decoration: underline; font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255);" class="">http://gpfsug.org/mailman/listinfo/gpfsug-discuss</a><br style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255);" class="">
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<div class="">Kevin Buterbaugh - Senior System Administrator</div>
<div class="">Vanderbilt University - Advanced Computing Center for Research and Education</div>
<div class=""><a href="mailto:Kevin.Buterbaugh@vanderbilt.edu" class="">Kevin.Buterbaugh@vanderbilt.edu</a> - (615)875-9633</div>
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