ADSM-L

Re: [ADSM-L] Internal compression?

2009-07-08 15:38:57
Subject: Re: [ADSM-L] Internal compression?
From: Wanda Prather <wprather AT JASI DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Wed, 8 Jul 2009 15:38:34 -0400
THANK YOU Richard!
You are a national treasure....

Wanda

On Thu, Jun 11, 2009 at 7:49 PM, Richard Sims <rbs AT bu DOT edu> wrote:

> On Jun 11, 2009, at 4:15 PM, Wanda Prather wrote:
>
>  The accounting log has multiple fields for the session:
>>
>> backup transactions
>> backup KB
>> total transmitted
>>
>> On a backup, you'll find the total transmitted is significantly
>> higher than
>> the total backed up.
>> That's the difference in the metadata.
>>
>> Now what I can't remember, is whether the backup KB includes the
>> retries or
>> not....  Richard?
>>
>> W
>>
>
> Hi, Wanda -
>
> From what I've seen, the dsmaccnt backup KB records the actual amount
> of data going into server storage pools, which excludes retries.
>
> Note that the "Total number of bytes transferred" summary statistic
> reflects traffic which flows from the client to the server, in Data
> verbs.  The flow of Active files inventory information from the server
> to the client at the start of an Incremental backup is thus not
> included in that number.  Dsmaccnt records a Session KB number, which
> does account for the flow in both directions.  Also, with backup of
> ordinary directories and empty files in Unix, such objects do not
> participate in Data verbs because they only constitute attributes for
> database storage, not storage pool data.
>
>   Richard Sims, at Boston University
>

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