Thanks mark.

I'm going to crank up the block size from 20 to 60 and see how it works.

I'll be sure to clearly mark on the tape that it needs to be restored with
-b 60 :)



On Thu, 23 Oct 2003, Donaldson, Mark wrote:

> You might see an increase in speed if you increase the default block size
> that tar uses (see options for tar).  This, however, might make recovery of
> the data more difficult as you will need that block size to un-tar as well.
> Remembering what tar file has what block size might be difficult.
> -M
>
> -----Original Message-----
> From: Steve Mickeler [mailto:steve AT warning DOT ca]
> Sent: Thursday, October 23, 2003 8:40 AM
> To: veritas-bu AT mailman.eng.auburn DOT edu
> Subject: [Veritas-bu] increasing tar speed.
>
>
>
> I do a lot of non-netbackup archiving via tar so I wont clutter up my
> netbackup catalog.
>
> Writing to my ultrium 2 drive via tar ( sun's or gnu tar ) only gets me
> about 15MB/sec.
>
> Writing to it via NBU gets me 30MB/sec with the SIZE_DATA_BUFFERS &
> NUMBER_DATA_BUFFERS settings cranked up.
>
> Is there a way to speed things up with regular tar ?
>
> Thanks.
>
>
>
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