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Re: [Bacula-users] Time for change
2008-12-09 14:02:45
Normally I would say,
1) Performance generally ie cpu hit is not a huge issue IMHO,
especially with todays dual and quad core cpus...and of course ram is
dirt cheap.
2) For me the big issues is Ive lost software raid sets from power
failures ....for a backup partition that's probably no biggee....unless
of course your data partition and your backup partition are both
software raided...and you loose both at once...
>>From whats posted the backup system is seperate from the production
servers, in which case software raid would be fine IMHO. If its lost,
the data should be available on tape and on the production
servers....the proviso is that you backup to disk overnight and then
immediately spool to tape..which could be during the day.
regards
Steven
Jeff Kalchik wrote:
Hello,
I am currently running Ubuntu. The bacula director and sd are on this
box. I have bacula configured to spool to this box, and then it goes
directly to tape. I want to change how I am backing up. I would like to
have some period of time of disk backups, and have them
moved/migrated/copied to tape.
Should I consider linux software raid. or use a hardware raid adapter?
If software does the cpu choice have much of an impact?
I am thinking of configuring the disk as follows:
One OS and database disk, maybe a mirror
Two disks in raid 0 for spooling, and recovering
Three or more disks in raid 5 for the sd storage.
Thoughts or comments on this?
*NEVER* use software RAID if you can avoid it. Software RAID puts a
pretty good hit right on your CPU.
Jeff Kalchik
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