I run ZFS, and you could always add an extra drive to the mirror, so that instead of having two, you have three. You have a pair of them that you can save as on-site and off-site backups. Put one on the system, zpool attach it, let it resilver (across both drives). That would reduce the stress on the existing pool.
However, I run FreeBSD and have *both* backuppc (because I have a couple of non-FreeBSD boxes), and a robust snapshot architecture. I am using zfstools, however am considering checking into an alternative (e.g. zelta, syncoid, etc). I have the snapshots on my desktop (mirrored pair 250GB SSDs and mirrored 4TB spinning rust) and laptop (mirrored 480GB SSDs) as follows: - Snapshot every 15 minutes (4 snapshots) - Top-of-the-hour one becomes the hourly (24 snapshots) - Midnight hourly becomes the daily (7) - Sunday daily becomes the weekly (4) - First weekly becomes the monthly (12) So I have snapshots going back a year. And then, since I have a TrueNAS core box that *also* runs ZFS, I will zfs send my daily snapshots to the pool on the NAS. In addition, I run backuppc to have another long-term source of backups, and for my few linux boxes... On Fri, Aug 23, 2024 at 10:17 AM Guillermo Rozas <guille2...@gmail.com> wrote: > > That's not necessarily a bad choice, especially if you can't fit your >> storage on a single platter, but you do lose that capability of having >> a full snapshot on either drive. > > > ZFS can do mirror configurations without problem. > > Regarding faulting the RAID to take one of the drives as a snapshot: be > careful that reconstruction of the new drive puts a non-standard stress on > the drive that's still in the system (higher the bigger is the drive), and > it may increase the risk of it dying during the process, taking down the > whole system. > > Regards, > Guillermo > _______________________________________________ > BackupPC-users mailing list > BackupPC-users@lists.sourceforge.net > List: https://lists.sourceforge.net/lists/listinfo/backuppc-users > Wiki: https://github.com/backuppc/backuppc/wiki > Project: https://backuppc.github.io/backuppc/ >
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