Home Directory Transition from NFS to GPFS on lsst-dev01

Data Management
#1

A transition period for the switch from NFS to GPFS home directories on lsst-dev01 begins today Monday Nov. 21, 2016 and extends to Jan 19, 2017. Key elements of this transition are

  • Each user can now migrate data using solely the lsst-dev01 server:
  • Current home: /home/USERNAME/
  • GPFS home: /home-new/USERNAME/

  • New GPFS home directories have a 1TB storage limit per user

  • On Jan 19, 2017

  • GPFS home directories will be remounted to /home/ on lsst-dev01 (and all interactive servers)
  • NFS home directories will be remounted readonly to /home-old/ on only lsst-dev01 server
  • On Feb 16, 2017 the NFS home directories will no longer be available.

Questions on this transition and related data transfer issues can be directed to lsst-sysadm@ncsa.illinois.edu or Slack #dm-infrastructure .

#2

It’s not clear to me whether users are expected to move files over themselves, or whether this will be done by sysadm. Would you please spell it out for me?

#3

What is a backup policy (if any) for the new home?

#4

The process would be that users copy the files themselves (deciding which files merit transfer to the new home directory.)

#5

There are daily backups of at least the last 30 days for /home-new . These are already in place and available for users to browse. One can access these under /home-new/.snapshots . Full documentation on the backups & disaster recovery for the various spaces is still being organized.