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<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); display: inline !important;">The previously announced tape library upgrade was completed Wednesday evening, and all services have been restored.</span><br>
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<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); display: inline !important;">During the upgrade (but unrelated to it) there was an outage of the Lustre system for experimental physics. Two storage nodes were rebooted and the system recovered.
This was the cause of responsiveness problems yesterday morning in /cache and /volatile on farm nodes. A number of farm and ifarm nodes were rebooted to clear follow-on issues in the batch farm.</span></div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Jlab-scicomp-briefs <jlab-scicomp-briefs-bounces@jlab.org> on behalf of Bryan Hess <bhess@jlab.org><br>
<b>Sent:</b> Thursday, October 29, 2020 11:58 AM<br>
<b>To:</b> jlab-scicomp-briefs@jlab.org <jlab-scicomp-briefs@jlab.org><br>
<b>Subject:</b> [Jlab-scicomp-briefs] Reminder: JLab Planned Tape Library outage next week</font>
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<div style="margin:0px; font-size:12pt; color:black; background-color:white">On Monday, November 2nd the tape libraries will be idled in preparation for a major upgrade. This will pause jget, jput, jcache, and all tape operations from the Farm and LQCD systems
until the upgrade is completed. </div>
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<div style="margin:0px; font-size:12pt; color:black; background-color:white">On Tuesday, November 3rd the two existing tape libraries will be merged into a single, upgraded tape library and four additional LTO8 tape drives will be installed, bringing the number
of LTO8 drives to twenty. This library merger will improve drive utilization and available bandwidth. Because this is a labor-intensive process we expect at least two days of work to rebuild the system. </div>
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<div style="margin:0px; font-size:12pt; color:black; background-color:white">The earliest projection for having the system online again is close of business Wednesday Nov 4th.</div>
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<div style="margin:0px; font-size:12pt; color:black; background-color:white">Please schedule any important tape operations in advance of this work. There will be no mechanism to read or write tapes during the upgrade.</div>
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<div style="margin:0px; font-size:12pt; color:black; background-color:white">Thank you.</div>
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