Just did a test, 7 files backing up (1.0GB each which contain ASCII text) 
get 115MB/s or so sustatined.  Still should be getting 160MB/s or more.

On Wed, 12 Jul 2006, Paul Keating wrote:

>> From http://www.openstore.com/tape-lto3vsdlt600.htm
>
> LTO3 spec is 80MB/s Native, and 160MB/s Compressed.
>
> I would rarely expect more than 100MB/s sustained unless you were
> backing up huge, multi-gig, uncompressed ASCII text files direct from
> highspeed disk to fiber attached tape drives.
>
> Paul
>
> -- 
>
>
>> -----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: July 11, 2006 5:52 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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