We've just upgraded our main filers to 7.0.5 after running 588 days with no interruption on 6.5.5. However we've run into serious problems when enabling quotas. The system runs at 100% for ages and we eventually have to disable quotas altogether. On the old system it took about 1 hour and 20% CPU to initialise quotas so there's an enormous difference. The system is unuseable if we enable quotas on 7.0.5. Netapps haven't been much help; the articles they refer me too mention this problem but in all cases the bug notes claim its been fixed in 7.0.5.
Anyone been here before me? We have ~20,000 accounts but most are captured with default quotas although we have around 1000 explicit entries defined in the quotas file.
Thanks ... Paul
Paul Jones, B.Sc, M.Sc, Ph.D. - Head of Systems Services, Information Technology Service, Durham University, South Road, Durham DH1 3LE Email: p.s.jones@durham.ac.uk Phone/Fax: 0191 334 2749/2701
Paul,
We've just upgraded our main filers to 7.0.5 after running 588 days with no interruption on 6.5.5. However we've run into serious problems when enabling quotas. The system runs at 100% for ages and we eventually have to disable quotas altogether.
We had similar problems when we upgraded from 6 to 7.0.2 in Oct 2005. It took several attempts to initilize quotas and when we finally managed it, it took 47 hours over a quiet weekend.
It took a while to get a useful response from Netapp, but they finally suggested putting default tracking quotas at the top of the quota file of the form:
* user@/vol/<volname> - - * group@/vol/<volname> - - * tree@/vol/<volname> - -
Our user filestore is on vol4, so we used:
QUOTA_PERFORM_USER_MAPPING on * user@/vol/vol4 - - * group@/vol/vol4 - - * tree@/vol/vol4 - - #--normal quota entries below here----
and this improved things. The quotas initilaised 3 times faster than the first attempt and the filer happily served data during the initialisation. Once done, you only need to do a quota resize to update the quotas, which takes a couple of minutes.
Last time I did a quota initilisation on our user filestore (also ~20,000 users and similar setup to yours) it only took 10 hours, that is also with 7.0.5.
I'd be happy to discuss this further with you off-list if you want.
-
Darren Miller -
JONES P.S.