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Parallel dumps of a single file system?
2006-05-23 09:09:16
Hi all,
I have a 1 TB RAID5 array which I inherited. The previous admin configured it to be a single file system as well. The disklist I have set up currently splits this file system up into multiple DLEs for backup purposes and dumps them using gtar.
In the past, on systems with multiple partitions, I would configure all file systems on different physical drives to be backed up in parallel. Since this system has but 1 file system, I've been backing them up one at a time.
But since this is a RAID array, it really wouldn't matter whether this were many file systems or 1, since everything is RAIDed out across all disks, would it?
So, my question is this: Am I doing the right thing by dumping these DLEs serially, or can I dump them in parallel?
For example, I have my user directories split out like this in the disklist file:
space-monster:/u1/user
space-monster:/u1/user/ad
space-monster:/u1/user/eh
space-monster:/u1/user/il
space-monster:/u1/user/mp
space-monster:/u1/user/qt
space-monster:/u1/user/uz
So, does it matter whether I have a RAID array with 1 or 23 file systems on it? Am I going about this the correct way, or can I use some parallelism?
Thanks,
--
Paul
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