Hi all,
Bacula 2.2.4. Solaris 9 Director & Storage Daemons. Mix of Solaris and
Windows clients.
I am gradually moving some backups onto Bacula (from another backup
system) & have noticed that Spooling of backups does not appear to be
working as I expected. I have a few 100 Gb set up for spooling, as I
have some large clients. However it seems that if only 1 large slow
client is running, it will load the tape drive at the start of the
backup to disk, and keep it open and unused until it starts spooling to
tape at the end of the backup to disk or once the spool area has reached
the threshold. I had assumed (!) Bacula would mount the tape when it
started reading from disk onto tape. As I have separated out my Solaris
and Windows backups into separate tape volumes, this leads to lots of
jobs for the other OS, backing up.
A few questions to anyone who is using Spooling and Migration :
1. Would I be better off using migration instead of spooling? e.g. back
up everything to disk overnight and then later migrate to tape. I am
probably OK for disk space, and my main aims are to get backups through
as quickly as possible and prevent my LTO2 drives from shoe-shining.
2. Is spooling better geared to using a few Gb only of disk space just
to buffer up the tape drive and keep it moving?
3. Is it recommended to keep Windows and Solaris backups on separate
volumes (tapes) or is it OK to mix them. I think if I used the same
tapes for everything there would be fewer opportunities for delays, but
I don't want to introduce problems by doing so.
thanks for any help,
Phil
Phil Weber MBCS
Storage Technical Services
Business Technology
Phone: 01384 26 4136
Egg Banking plc
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