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Re: [Bacula-users] Performance options for single large (100TB) server backup?
2011-06-28 12:50:33
Problem is not really just tape I/O speeds but the ability to get
data to it. I.e. the SD is running at about 50% cpu overhead
right now (single core) so it could possible handle (2) LTO4
drives assuming a new SD is not spawned off per drive?
I don't really need 'rait' itself as that would double the
probability of errors with pure bit striping. Was thinking more
of one file to each or group of files so that files are intact on
each tape (so if you loose a tape you're not loosing n*#drives
worth of files, just the single tape's worth of files.
On 2011-06-28 10:01, Josh Fisher wrote:
On 6/27/2011 8:43 PM, Steve Costaras wrote:
....
- How to stream a single job to multiple tape drives. Couldn't
figure this out so that only one tape drive is being used.
There are hardware RAIT controllers available from Ultera
(http://www.ultera.com/tapesolutions.htm). A RAIT level 0 array would
allow a "volume" to be a group of two tapes with the data striped across
the two tapes, essentially doubling read/write throughput, just like
RAID-0. But to the OS, and Bacula, the RAIT-0 array looks like a single
device.
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All of the data generated in your IT infrastructure is seriously valuable.
Why? It contains a definitive record of application performance, security
threats, fraudulent activity, and more. Splunk takes this data and makes
sense of it. IT sense. And common sense.
http://p.sf.net/sfu/splunk-d2d-c2 _______________________________________________
Bacula-users mailing list
Bacula-users AT lists.sourceforge DOT net
https://lists.sourceforge.net/lists/listinfo/bacula-users
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