<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
</head>
<body text="#000000" bgcolor="#FFFFFF">
<p><span
style="text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><font
style="" face="arial, helvetica, sans-serif" color="#000000">Hi
everyone,</font></span></p>
<p><span
style="text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><font
style="" face="arial, helvetica, sans-serif" color="#000000">Just
got this from the CIT.</font></span></p>
<p><span
style="text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><font
style="" face="arial, helvetica, sans-serif" color="#000000">Kind
regards,</font></span></p>
<p><span
style="text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><font
style="" face="arial, helvetica, sans-serif" color="#000000">Ewout<br>
</font></span></p>
<p><span
style="text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><font
style="" face="arial, helvetica, sans-serif" color="#000000">---<br>
</font></span></p>
<p><span
style="text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><font
style="" face="arial, helvetica, sans-serif" color="#000000">Dear
Peregrine user,</font></span></p>
<div
style="text-decoration-style:initial;text-decoration-color:initial"><font
face="arial, helvetica, sans-serif" color="#000000"><br>
</font></div>
<div
style="text-decoration-style:initial;text-decoration-color:initial"><font
face="arial, helvetica, sans-serif" color="#000000">As you might
have noticed, during last week the Peregrine filesystems have
encountered multiple crashes. Currently making /data available
in a stable way does not even seem to be possible.</font></div>
<div
style="text-decoration-style:initial;text-decoration-color:initial"><font
face="arial, helvetica, sans-serif" color="#000000">This is why
have decided to perform unscheduled maintenance, and start with
the upgrade of the storage environment on short notice.</font></div>
<div
style="text-decoration-style:initial;text-decoration-color:initial"><font
face="arial, helvetica, sans-serif" color="#000000">Fortunately
we have already done a lot of preparation. We can therefore
minimize the downtime considerably, due to the use of temporary
storage. We will use this temporary storage, while we upgrade
the original Peregrine storage systems.<br>
</font></div>
<div
style="text-decoration-style:initial;text-decoration-color:initial"><font
face="arial, helvetica, sans-serif" color="#000000"><br>
</font></div>
<div
style="text-decoration-style:initial;text-decoration-color:initial"><font
face="arial, helvetica, sans-serif" color="#000000">The
maintenance will have the following consequences:<br>
</font></div>
<div
style="text-decoration-style:initial;text-decoration-color:initial">
<ul>
<li><font face="arial, helvetica, sans-serif" color="#000000">From
now on until Friday 06-07 Peregrine will be unavailable. If
we finish earlier the system will be made available again
sooner.<br>
</font></li>
<li><font face="arial, helvetica, sans-serif" color="#000000">After
the downtime Peregrine will be configured with temporary
storage. This means that in the future we will plan
scheduled downtime to switch back to the original upgraded
storage.</font></li>
<li><font face="arial, helvetica, sans-serif" color="#000000">All
running jobs will unfortunately be lost. Waiting jobs will
be suspended.<br>
</font></li>
<li><font face="arial, helvetica, sans-serif" color="#000000">Since
we don't have a copy of /scratch, this file system will be
empty when we resume operations. <br>
</font></li>
<li><font face="arial, helvetica, sans-serif" color="#000000">We
will, however, provide read only access to the old /scratch
for one week to allow you to copy important data.<br>
</font></li>
<li><font face="arial, helvetica, sans-serif" color="#000000">If
possible we will make the login nodes available for
read-only access to the data. Some reboots will be necessary
however.</font></li>
</ul>
</div>
<div
style="text-decoration-style:initial;text-decoration-color:initial"><font
face="arial, helvetica, sans-serif" color="#000000">We apologize
for any inconvenience this unscheduled maintenance will cause. <br>
</font></div>
<div
style="text-decoration-style:initial;text-decoration-color:initial"><font
face="arial, helvetica, sans-serif" color="#000000"><br>
</font></div>
<div
style="text-decoration-style:initial;text-decoration-color:initial"><font
face="arial, helvetica, sans-serif" color="#000000">Kind
regards,</font></div>
<div
style="text-decoration-style:initial;text-decoration-color:initial"><font
face="arial, helvetica, sans-serif" color="#000000"><br>
</font></div>
<div
style="text-decoration-style:initial;text-decoration-color:initial"><font
face="arial, helvetica, sans-serif" color="#000000">Fokke
Dijkstra</font></div>
<div
style="text-decoration-style:initial;text-decoration-color:initial"><font
style="" face="arial, helvetica, sans-serif" color="#000000">HPC-team</font></div>
</body>
</html>