1. Read Only Volumes on Deleuze
Not Doing This (the time required is not worth a few minutes of afs downtime at this point)
Since we have openafs we may as well take advantage of it by adding deleuze's vicepa as a site for user.$USER volumes. There does not appear to be enough room for mail.$USER volumes so we won't worry about those (mail will still be queued and having a read only copy of mail volumes is of dubious value).
1.1. Preparation
A few days before the upgrade:
Prevent backup from running (uncomment exit 0 in hcoop-backup-wrapper) before scheduled upgrade date
- Purge last backup data
Purge db.$USER volumes
Purge {user,mail}.$USER.d volumes for members who departed more than (tentatively) 90 ago
For all active user.$USER volumes: vos addsite deleuze vicepa user.$USER
Immediately before upgrading:
For all active user.$USER volumes: vos release user.$USER
1.2. Clean Up
For all user volumes vos remsite deleuze vicepa user.$USER to free space for the backup. Alternatively, since the backup will be moved to fritz anyway, leave them in place. There seems to be little benefit to doing so since deleuze does not have much space compared to fritz and we have nothing in place to regularly vos release volumes making them effectively useless.