Veritas-bu

[Veritas-bu] LTO3 Drive Speed Poll

2006-07-11 18:37:58
Subject: [Veritas-bu] LTO3 Drive Speed Poll
From: jpiszcz at lucidpixels.com (Justin Piszcz)
Date: Tue, 11 Jul 2006 18:37:58 -0400 (EDT)
A combination of watching:

1) iostat -x -k 1
2) vmstat 1
3) watching admin console
4) calculate time it took to backup XX amount of MB/s

put that all together and get an average


On Tue, 11 Jul 2006, Dustin D'Amour wrote:

> Justin,
>
> What are you using to benchmark the tape drives? I'd be interested to
> see what our Fibre tape drive is doing.
>
>
> Dustin D'Amour
> Coyote Solutions Group
> 505.742.0066
> www.coyotesolutions.com
>
> "Relax...it's just an update for the patch to fix the nerf that nerfed
> the fix for the update of the patch that broke the fix that was fixed."
>
> -----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 4:14 PM
> To: Steve Quan
> Cc: Veritas-bu at mailman.eng.auburn.edu
> Subject: Re: [Veritas-bu] LTO3 Drive Speed Poll
>
>
>
> On Tue, 11 Jul 2006, Steve Quan wrote:
>
>> Hi Justin,
>>
>> Is the data coming directly from a SAN (vs network) or direct attach ?
>>
>> Thanks,
>> /Steve
>> ---
>> On Tue, 11 Jul 2006, Justin Piszcz wrote:
>>
>>> This is on an HP shelf connected via
>>>
>>> 06:01.0 SCSI storage controller: LSI Logic / Symbios Logic 53c1030
> PCI-X
>>> Fusion-MPT Dual Ultra320 SCSI (rev 07)
>>> 06:01.1 SCSI storage controller: LSI Logic / Symbios Logic 53c1030
> PCI-X
>>> Fusion-MPT Dual Ultra320 SCSI (rev 07)
>>>
>>> Using 10k RPM drives I believe.
>>>
>>>
>>
>> <<<snip>>>
>>
>
> Directly attached.
>
>
> PCI-X <-> Ultra320 SCSI (i've benchmarked the drives 110-140mb/s)
> PCI-X <-> Another SCSI card (LTO3 drive)
>
> What do you get speed wise (MAX for LTO3)?
>
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