So nobody gets 160-200MB/s even with 2:1 compression?

On Tue, 11 Jul 2006, Brandon Zermeno wrote:

> We get pretty much the same speeds. We run a Quantum PX502 and I think
> it is pretty much maxed out at 80 meg/sec per drive.
>
> -----Original Message-----
> From: veritas-bu-bounces at mailman.eng.auburn.edu
> [mailto:veritas-bu-bounces at mailman.eng.auburn.edu] On Behalf Of Justin
> Piszcz
> Sent: Tuesday, July 11, 2006 2:52 PM
> To: veritas-bu at mailman.eng.auburn.edu
> Subject: [Veritas-bu] LTO3 Drive Speed Poll
>
> The group I work with is expecting 160-200MB/s megabytes per second on
> an
> LTO3 with compression.  I did some tests today with 7 RAID1 SCSI drives.
>
> 67GB x 7
>
> On each volume was 3 20GB tar files.
> I got 78-82MB/s sustained total, 12-16MB/s on each thread (7
> multistreamed).
>
> The tar files are representative of a typical file system in our
> environments.
>
> What speeds have other members gotten when doing speed testing to LTO3
> drives?
>
> Justin.
>
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