[no subject]

Hi James,

I had the same problem on a windows NT platform. My machine has a dual pentium 200 with 128MB of mem and had two SCSI controllers one mylex RAID and a dual adaptec ultra SCSI controller. The Mylex RAID had a mirrored system disk and a RAID five data disk.The network connection is a 100MHZ ethernet connection via a network switch. I installed ADSM on the RAID five (9GB) including a 5GB backuppool. The backup didn't perform to my expectation. Tuning of ADSM didn't make much difference. I installed a SCSI to SCSI RAID controller and moved the log ,DB and the backup pool to the much faster RAID system.

Our initial throughput was around the 1.5MB per hour.

after the new RAID on a seperate controller we where getting 5 to 7GB an hour for each session.

You may have the same problem.

Also look at the client book re large restore and the command line backup to increase performance.

from the windows client book

3.17 Performing Large Restore Operations

With Windows NT, if you need to restore a large number of files, you will get faster performance using the
command-line interface rather than the GUI. In addition, you will improve performance if you enter multiple
restore commands at one time. For example, to restore all the files in your c: file space, you would enter:

     dsmc restore c:\*.* -subdir=yes -replace=all -tapeprompt=no

However, if you enter multiple commands for the root directories in your c: file space, enter multiple commands for the root directories in your c: file space, ADSM can restore
the files faster. For example, you would enter these commands:

     dsmc restore c:\users\ -subdir=yes -replace=all -tapeprompt=no
     dsmc restore -tapeprompt=no
     dsmc restore c:\data1\ -subdir=yes -replace=all c:\data1\ -subdir=yes -replace=all -tapeprompt=no
     dsmc restore c:\data2\ -subdir=yes -replace=all dsmc restore c:\data2\ -subdir=yes -replace=all -tapeprompt=no

Or, if you need to restore files for multiple drives, you would enter these if you need to restore files for multiple drives, you would enter these commands:

     dsmc restore c:\*.* -subdir=yes -replace=all -tapeprompt=no
     dsmc restore -replace=all -tapeprompt=no
     dsmc restore d:\*.* d:\*.* -subdir=yes -replace=all -tapeprompt=no
     dsmc restore -tapeprompt=no
     dsmc restore e:\*.* -subdir=yes -replace=all -tapeprompt=no

You e:\*.* -subdir=yes -replace=all -tapeprompt=no

You can also use the quiet option with the restore command to save more processing time. However,
you will not receive informational messages for individual files.

Note: If you already have the appropriate values set for the subdir, replace, tapeprompt, and quiet
       options in your client options file, it is not necessary to include these options in the commands.

Cheers

Leo Humar

-----Original Message-----
From: James Riehl <jimbo AT US.IBM DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU <ADSM-L AT VM.MARIST DOT EDU>
Date: Friday, February 05, 1999 9:13 AM
Subject: Re: Solaris Performance

David,

     The only trick is, when creating the partition with the /etc/format
utility, do not include cylinder 0 (zero) in the partition intended for use
as a raw partition. Also on Solaris 2.5.1 partition must be LESS than 2 gig
in size.

     I apologize that information is not in the pubs. I was certain that
was added last revision, but I just check and it is not.

Thanks...Jim Riehl
ADSM Sun Server Development

DAVID HENDRIX <dmhendri AT FEDEX DOT COM> on 02/04/99 08:16:50 AM

Please respond to "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>

To:   ADSM-L AT VM.MARIST DOT EDU
cc:    (bcc: James Riehl/Tucson/IBM)
Subject: Re: Solaris Performance

Jim,

We've never been able to get ADSM to recognize raw volumes in a non-AIX
environ. Any tricks I'm missing here? This would be good news for us - we
prefer raw volumes.

Thanks,

David

James Riehl <jimbo AT US.IBM DOT COM> on 02/03/99 04:01:08 PM

Please respond to "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>

To:      ADSM-L AT VM.MARIST DOT EDU

cc:      (bcc: DAVID HENDRIX/216832/ITD/FEDEX)

Subject: Re: Solaris Performance

Malkit,

     Try setting, in dsmserv.opt, DISKMAP NO. This setting can improve
performance with larger disk pools and with some disk sub-systems. To get
the best disk storage pool performance on Sun, we recommend using the
raw-partitions (see the reference manual or the help on "define vol" and
the notes on the disk device class).

Thanks...Jim Riehl
ADSM Sun Server Development

malkit <malkit AT UDI.CO DOT IL> on 02/03/99 02:37:49 PM

Please respond to "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>

To:   ADSM-L AT VM.MARIST DOT EDU
cc:    (bcc: James Riehl/Tucson/IBM)
Subject: Solaris Performance

Hello

We have Solaris ADSM server v3.1.2 , with the following options in
dsmserv.opt :

BUFPoolsize 20480
EXPInterval 24
MOVEBatchsize 1000
MOVESizethresh 500
TCPNodelay yes
TCPWindowsize 0
TXNGroupmax 256
USELARGEbuffer yes
USELARGETAPEBLOCK yes

The backup is done to disk stg pool. We get bad performance on backing
up and restore as well. Attach are two of the worst performance during
the night backup.
I will appreciate your experience on tunning the ADSM server and
clients. We get better performance when doing selective/incremental
backup directly from the client, but still it doesn't get to 1mb/sec.
Awful !

--------------------------------------------------------------
SHEBA Total number of objects inspected: 33,977

SHEBA Total number of objects backed up: 23

SHEBA Total number of objects updated: 0

SHEBA Total number of objects rebound: 0

SHEBA Total number of objects deleted: 0

SHEBA Total number of objects failed: 0

SHEBA Total number of bytes transferred: 1.14 MB

SHEBA Data transfer time: 3.43 sec

SHEBA Network data transfer rate: 341.37 KB/sec

SHEBA Aggregate data transfer rate: 4.18 KB/sec

SHEBA Objects compressed by: 0%

SHEBA Elapsed processing time: 00:04:40
WATSON Total number of objects inspected: 55,937

WATSON Total number of objects backed up: 45

WATSON Total number of objects updated: 0

WATSON Total number of objects rebound: 0

WATSON Total number of objects deleted: 3

WATSON Total number of objects failed: 0

WATSON Total number of bytes transferred: 883.43 KB

WATSON Data transfer time: 0.17 sec

WATSON Network data transfer rate: 5,196.66 KB/sec

WATSON Aggregate data transfer rate: 0.27 KB/sec

WATSON Objects compressed by: 0%

WATSON Elapsed processing time: 00:54:06

---------------------------------------------
Thank you for your help
--
Malkit Hayun, UDI
Application Engineer
Office: 972-3-9233440
Mobile: 972-52-834575
Fax    :972-3-9233441
Email: malkit AT udi.co DOT il

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