Re: [Bacula-users] Backup on Tape
2014-08-05 13:44:56
On 08/05/2014 10:32 AM, Alan Brown wrote:
> If you're backing up to LTO of any type, the only way to get reasonable
> performance is to backup to a high performance SSD spool (or SSD stripe)
> and then despool from that to the tape.
>
> A decently fast SSD spool area can handle simultaneous spool/depool
> operations - but do NOT try this with low end consumer SSDs, the write
> latencies will kill performance (most consumer SSD random write
> performance is "so-so" at best.).
I'd also consider write wear-out and your retention periods 'cause when
you fry your system drive/bacula database ssd, you may have to bscan N
years worth of tapes to make your backups accessible again.
--
Dimitri Maziuk
Programmer/sysadmin
BioMagResBank, UW-Madison -- http://www.bmrb.wisc.edu
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