<div dir="ltr">From: Keith Ball <<a href="mailto:kball@redlineperf.com">kball@redlineperf.com</a>><br>To: <a href="mailto:gpfsug-discuss@spectrumscale.org">gpfsug-discuss@spectrumscale.org</a><br>Cc: <br>Bcc: <br>Date: Sun, 3 Dec 2017 16:13:13 -0500<br>Subject: Smallest block quota/limit and file quota/limit possible to set?<br><div><div><div><div><div><div><div><div>HI All,<br><br></div>We
have a system where all users have their own private group as well.
However, for a given fileset (we are using --perfileset-quota), we would
like to ONLY allow users who also belong to just a few central groups
to be able to write to the fileset. <br><br>That is, user "userA" has its own "groupA", but we only want the user to be able to write to the fileset if:<br></div> - userA belongs to one of the groups (e.g. group1, group2, group3) that have explicitly set quotas<br></div> - The group(s) in question are within quota/limits.<br><br></div>In
general, we do not want any users that do NOT belong to one of the
three groups with enabled quotas to be able to write anything at all to
the fileset.<br><br></div>Is there a way to set a ZERO quota for
block/file in GPFS, that means what it actually should mean? i.e. "Your
limit is 0 file = you cannot create files in this fileset". Creating
some kind of "supergroup" owner of the fileset (with entitled users as
members of the group) could work, but that will only work for *one*
group. <br><br></div>If we cannot set the block and file limits to zero,
what *are* the smallest block and fie limits? In GPFS 3.5, they seem to
be 1760MB for block. Is there a smallest quota for files? (blocksize is
16MB, which will be reduced to 4MB probably, in a subsequent cluster).<br><br></div>Many Thanks,<br></div> Keith <br><br><br clear="all"><br>-- <br>Keith D. Ball, PhD<br><div><div>RedLine Performance Solutions, LLC</div><div>web: <a href="http://www.redlineperf.com/" target="_blank">http://www.redlineperf.com/</a><br><div>email: <a href="mailto:aqualkenbush@redlineperf.com" target="_blank">kball@redlineperf.com</a></div></div></div>cell: <a href="tel:(540)%20557-7851" value="+15405577851" target="_blank">540-557-7851</a></div>