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 15:17:28 -0600
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 More useless numbers. It looks like the 10k drives in the VA7100 can do
about 8mb per second per drive using 64kb write size.  The VA71xx
probably adds some latency of its own independent of the disk.
Who knows what the effective  I/O rate of the device is???


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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