> On Feb 9, 2016, at 8:30 AM, Josh Fisher <jfis...@pvct.com 
> <mailto:jfis...@pvct.com>> wrote:
> 
> 
> On 2/8/2016 5:42 PM, Dan Langille wrote:
>> Hello,
>> 
>> I am working with an LTO-4 tape library.  It has two drives but I plan to 
>> write to only one for backups.
>> 
>> I will backup to disk first, on another SD.  Later, I will copy the jobs to 
>> the tape library on this new SD
>> which is on another server.  The copy jobs will be spooled to local SSD 
>> before being written to tape.
>> 
>>    re 
>> http://bacula-users.narkive.com/QRkTVfEz/typical-tape-write-performance 
>> <http://bacula-users.narkive.com/QRkTVfEz/typical-tape-write-performance>
>> 
>> Now what I'm thinking of is streaming multiple concurrent jobs to a single 
>> drive
> 
> Are the two servers on a 10G or better network? Unless the disk subsystem on 
> the other SD is slow, it will likely stream close to the 1G max of 125 MB/s, 
> since it will be essentially sequential reads. I'm not convinced that 
> concurrency will gain anything.

No, it's a 1G network in my house.

-- 
Dan Langille - BSDCan / PGCon
d...@langille.org <mailto:d...@langille.org>




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