RE: Determine bottlenecks during backup

Looks like I fat-fingered my original reply.  275GB/hour is what I
meant.  As I rarely back up less than 3-400GB, MB/s has kinda become
meaningless.  I apologize for the typo.  I must've been thinking about
your MB/s rate as I typed.  Sometime the fingers disassociate themselves
from the brain. :) 

John A. Jones, CISSP
Americas Information Security Officer
Jones Lang LaSalle, Inc.
V: +1-630-455-2787 F: +1-312-601-1782
john.jones@xxxxxxxxxx

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Wilt, Charles
Sent: Wednesday, March 01, 2006 2:16 PM
To: Midrange Systems Technical Discussion
Subject: RE: Determine bottlenecks during backup

> -----Original Message-----
> From: midrange-l-bounces@xxxxxxxxxxxx 
> [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Jones, John (US)
> Sent: Wednesday, March 01, 2006 2:20 PM
> To: Midrange Systems Technical Discussion
> Subject: RE: Determine bottlenecks during backup

<snip>
> 
> 
> As I recall at COMMON last year IBM noted about 235-250GB/hour as a 
> potential speed on SCSI-attached LTO3s.  I figure slightly better than

> average compression would explain how I'm exceeding what IBM noted.
> 

IBM says 235-250GB/hour and you're getting 275MB/sec....that's more than
a little better John...our your really getting 990GB/hour?

Assuming the figure in your first post should have been
275GB/hour....then I don't feel so bad.

I'm seeing 77MB/s which is about 277GB/hour (@1000MB=1GB).

Charles

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