Yes we are aware of the problem and it affects all client platforms. The
problem occurs when an incorrect size estimate of an object is sent to the
server.  The estimate is calculated incorrectly when a file grows during
compression (usually a file which is already compressed such as a .zip file)
and the size estimate contains the actual size of the file instead of the
larger amount of data which is actually sent (hence the estimate is to small).
We are currently working on a solution to this problem. For now, there are
several possible workarounds to the problem  (with possible undesirable side
effects):

   1. Exclude known compressed files from backup.  Downside is that critical
data may not be backed up, also may not be able to easily determine what files
are compressed.

 2.  Turn off COMPRESSALWAYS option . Downside is that performance will be
degraded in all clients because files which grow during compression will fail
and will be resent to the server uncompressed. Performance in version 3 servers
will also be degraded because file aggregation will not be as efficient when
failing files are resent.

3. Turn client compression off. Downside is that larger storage pool space on
the server will be required.


We hope to a solution to this problem soon.


Pete Tanenhaus
ADSM Client Development
---------------------- Forwarded by Pete Tanenhaus/San Jose/IBM on 02/06/98
6/98
12:17 PM ---------------------------

        ADSM-L AT VM.MARIST DOT EDU
        02/06/98 12:19 PM
Please respond to ADSM-L AT VM.MARIST DOT EDU @ internet

To: ADSM-L AT VM.MARIST DOT EDU @ internet
cc:
Subject: Re: Lotus Notes Client for Windows NT ... NOT!

We have discovered that ANR0534W is a problem with Win NT V3 clients,
and not just Lotus Notes users.    We see this problem with Win NT V3 and
we are not using Lotus notes, also don't see this with non-V3 clients.

Its very annoying.   Has IBM said anything about a fix?
We don't see any new NT clients for V3 on the FTP site.

Help!     ... thanks ... joe.f.

On Thu, 16 Oct 1997 17:44:56 +0200 you said:
>Hi Fellow ADSMers
>Is there anyone out there who has successfully installed and used the newly
> released
>Lotus Notes ADSM Client for Windows NT. We installed it and once we start
>the backup,
>it executes for about 10-15 minutes and then terminates with an error.  On
>the server end
>the message is as follows :
>
>ANR0534W Transaction failed for session 1315 for node
>NA-KM01 (WinNT) - size estimate exceeded and server is
>unable to obtain additional space in storage pool
>BACKUPPOOL.
>
>We have contacted ADSM support and according to them it is a bug with the
>client software
>and an APAR has been opened. The explanation that has been given is that
>the algorithm
>being used for the OS/2 client and Windows NT client for estimating size is
> different and the
>one for NT is not accurate.
>
>What puzzles me is the following
>
>1. A new product is released by IBM and has not been sufficiently tested.
>We have been told
> that the problem is in the hands of development now and will definitely be
> fixed by the next PTF
> level which is due sometimes NEXT YEAR.  I find this answer totally
>unacceptable (to be polite).
>
>2.  When an algorithm works for OS/2 why go and re-invent the wheel?
>
>I want to find out the experiences of any other customers using this
>client.
>
>Maybe (hopefully) someone from IBM reads this mail and helps to
>significantly speed up the fix of
>this problem.
>
>Chris