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Revision as of 17:18, 7 October 2025

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=== ZFS ===
Shell uses ZFS for the main data pool, which is mounted at /home (and each user's homedir is an individual dataset).
As of Fall 2025, it has roughly ~8TB in raw space (4x2TB drives), ~4TB after formatting (RAID10 / striped-mirrors) and ~1TB used with ~3.5TB free.
 
Some helpful commands are:
 
* View general pool status (and disk health)▼
** <code>zpool status</code>
* View all ZFS snapshots
** <code>zfs list -t snapshot</code>
* Delete specific snapshot
** <code>zfs destroy -r zhome@example-snapshot</code>
 
▲* View general pool status (and disk health)
Automated tasks (cronjobs):
 
* 4AM EST a: cronjob recursively makes a snapshot of /home and each user's homedir, prefixed by "Auto".4:15AM EST a cronjob recursively deletes >8th oldest /home snapshot starting with "Auto".View all ZFS snapshots: zfs list -t snapshotDelete specific snapshot: zfs destroy -r zhome@example-snapshotGeneral pool status: zpool status
* 4:15AM EST a cronjob recursively deletes >8th oldest /home snapshot starting with "Auto".
Retrieved from "https://lug.mtu.edu/wiki/Special:MobileDiff/7957"

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