Tags:
create new tag
view all tags

Arrow left Go to previous page / next page of Tier3 site log MOVED TO...

29. 11. 2012 146GB disks to be absorbed by UIs

Unused Servers
server unused disks
ex t3wn08 2
ex t3vmmaster01 4
t3dcachedb01 4 disks available but intouchables now, it hosts PNFS
t3dcachedb03 4 if the VM t3dcachedb04 will proof to be ok as a Chimera node
ex t3se01 2, but not now, we're still migrating

RAID0 scenarios, OS and /scratch unsafe

UIs used/tot slots /scratch GB reusing from t3wn08 + t3vmmaster01 /scratch GB reusing from t3wn08 + t3vmmaster01 + t3dcachedb03 + t3se01 /scratch GB
t3ui02 2 / 6 229 3 / 6 375 4 / 6 521
t3ui03 2 / 6 133 3 / 6 "" 4 / 6 ""
t3ui04 2 / 6 133 3 / 6 "" 4 / 6 ""
t3ui05 2 / 6 133 3 / 6 "" 4 / 6 ""
t3ui06 2 / 6 133 3 / 6 "" 4 / 6 ""
t3ui07 2 / 6 229 3 / 6 "" 4 / 6 ""

Fabio's remarks

  • to get 3 / 6 I can proceed next week.
  • to get 4 / 6 I would expect Jan 2013.
  • ok we can relocate disks but do we really want to stop to use those servers ?? new disks are cheaper than servers. Old servers can be turned in new UIs if we buy new disks.

Daniel's remarks

  • /scratch space should only be used for temporary storage and not for valuable data, so I'm ok with the "unsafe" option but we should inform the users (I'm not sure all of them are aware of the current situation for t3fs02 and t3fs07)
  • there is no rush to do this UI upgrade (other then the old lcg-utils but we can live with that for the moment), so why not wait until January if we can produce a more consistent setup then
  • I will ask around for some use cases so have more input for the "safe /scratch" vs "large /scratch" decision
  • even a large /scratch partition will be filled up within a few months; do we need an automated cleaning (also depends on the use cases of course)


Arrow left Go to previous page / next page of Tier3 site log MOVED TO...

Edit | Attach | Watch | Print version | History: r2 < r1 | Backlinks | Raw View | Raw edit | More topic actions
Topic revision: r2 - 2012-11-30 - DanielMeister
 
This site is powered by the TWiki collaboration platform Powered by Perl This site is powered by the TWiki collaboration platformCopyright © 2008-2019 by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding TWiki? Send feedback