HP3000-L Archives

February 2005, Week 4

HP3000-L@RAVEN.UTC.EDU

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From:
steve macsisak <[log in to unmask]>
Reply To:
steve macsisak <[log in to unmask]>
Date:
Tue, 22 Feb 2005 14:47:12 -0600
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 Just because the pipes are fast doesnt' mean the disks on each end are
as fast!!!. Don't think you can write to the va7100 as fast as the fiber
path can transfer data. Also the XP has fiber controllers in the box
that can only do some many bytes per second per controller..I've
forgotton specifics but the 1GB fiber path is probably not the slowest
component on the path.

Craig Lalley wrote:
> --- Denys Beauchemin <[log in to unmask]> wrote:
>
>>And if your restore takes twice as long as your backup, you have
>>opportunities for improvement.
>>
>
>
> Denys,
>
> I think you have an excellent idea of moving one group at a time.
>
> Given that there is 500Gb of data to move accross a 1GB fiber path... Where is the real
> bottleneck?
>
> Relatively speaking, I would find it hard to believe that on a 1GB fiber path, it would really
> take that long to transfer the data.
>
> So what is the REAL throughput of a 1GB channel?
>
> -Craig
>
>
>
>
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