ADSM-L

Re: Transfer Rate

2001-08-02 10:24:21
Subject: Re: Transfer Rate
From: Lindsay Morris <lmorris AT SERVERGRAPH DOT COM>
Date: Thu, 2 Aug 2001 10:18:49 -0400
Aggregate uses wall-clock time;
Network uses the intervals between when the client says "I'm sending data
now", to when the server actually receives it.

It's perfectly normal to have aggregate be a lot slower than network.

If you really want to speed up your backups, you need to
look at the accounting log records (.../server/bin/dsmaccnt.log - see admin
guide for layout)
to see which of your clients suffer most from idle wait, media wait, or comm
wait.

> -----Original Message-----
> From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU]On Behalf Of
> Bill Wheeler
> Sent: Thursday, August 02, 2001 9:55 AM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Transfer Rate
>
>
> Hello All,
>
>     I hope a few of the *SMer guru can help me out on this one.   I don't
> know if you have had a problem like this before.   The problem is our
> Aggregate Transfer Rate is allot lower then the Network Transfer
> Rate.   Is
> there something that I can look at to see if I can get the data moved
> quicker?    Here is a copy of the Activity log with the rates:
>
>
> ANE4961I (Session: 4532, Node: F50_CLIENT)  Total number
>
> of bytes transferred:    69.33 GB                        07/31/01 06:51:30
>
> ANE4963I (Session: 4532, Node: F50_CLIENT)  Data transfer
>
> time:                11,858.22 sec                       07/31/01 06:51:30
>
> ANE4966I (Session: 4532, Node: F50_CLIENT)  Network data
>
> transfer rate:        6,130.86 KB/sec                    07/31/01 06:51:30
>
> ANE4967I (Session: 4532, Node: F50_CLIENT)  Aggregate data
>
> transfer rate:      2,462.14 KB/sec                      07/31/01 06:51:30
>
> ANE4968I (Session: 4532, Node: F50_CLIENT)  Objects
>
> compressed by:                    0%                     07/31/01 06:51:30
>
> ANE4964I (Session: 4532, Node: F50_CLIENT)  Elapsed
>
> processing time:            08:12:07
>
>
> Any advice would be helpful.
>
> Thanks in advance,
>
> Bill Wheeler
> AIX Administrator
> La-Z-Boy Incorporated
> bill.wheeler AT la-z-boy DOT com <mailto:bill.wheeler AT la-z-boy DOT com>
>
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