Hi list readers,
I am trying to do a backup of our mail server using lvm snapshots. I
read how to do snapshots and learned that I need some free space on the
volume group where the snapshot is to be made. Unfortunately I gave all
disk space to the cyrus mail spool in that volume group *and* I used xfs
which can only be made bigger not smaller.
I am planning to shut down all services and copy the data to another lv
in a seperate vg. Then I would recreate the lv for cyrus, format it and
copy everything back. Whereon I would start all services again.
Which way would you recommend for copying: rsync, tar, cp or whatever? I
am concerned about the databases that cyrus uses. Will they they be
consistent afterwards. Is there anything I have to be aware of or do
before? I don't want to break things just because I am trying to do a
backup.
TIA and regards
Timo
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