Hello, Trying to understand how to backup mirrored zfs boot pool 'rpool' to tape, and restore it back if in case the disks are lost. Backup would be done with an enterprise tool like tsm, legato etc.
As an example, here is the layout: # zfs list NAME USED AVAIL REFER MOUNTPOINT rpool 64.5G 209G 97K legacy rpool/ROOT 24.0G 209G 21K legacy rpool/ROOT/s10s_u8wos_08a 24G 14.8G 5.15G / rpool/ROOT/s10s_u8wos_08a/var 4G 3.93G 74.6M /var rpool/dump 2.50G 209G 2.50G - rpool/swap 16G 225G 136M - # Could you answer these queries: 1. Is it possible to backup 'rpool' as a single entity, or do we need to backup each filesystems, volumes etc. within rpool seperately ? 2. How do we backup the whole structure of zfs (pool, filesystem, volume, snapshot etc.) along with all its property settings. Not just the actual data stored within. 3. If in case the whole structure cannot be backed up using enterprise backup, how do we save and restore zfs sctructure if in case the disks are lost. I have read about 'zfs send receive ...'. Is this the only recommended way ? 4. I have never tried to restore a whole boot disk from tape. Could you share some details on how to rebuild the boot disks by restoring from tape. 5. I have set 'rpool/ROOT' mountpoint to 'legacy' as I don't see any reason to mount it. Not sure if it's a right thing to do. Any suggestions ? Thanks Arjun
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