ADSM-L

Re: Backup of Win2`K Fileserver

2002-08-02 16:10:44
Subject: Re: Backup of Win2`K Fileserver
From: Eric Gruber <egruber AT STORAGEACCESS DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Wed, 31 Jul 2002 16:54:20 -0400
This will not help with your possible network problems, however, you could 
rename the filespace to the appropriate unc name.
You probably want to rename the existing filespace to 
\\servername\driveletter$_old first.

Eric

-----Original Message-----
From: Guillaume Gilbert [mailto:guillaume.gilbert AT DESJARDINS DOT COM]
Sent: Wednesday, July 31, 2002 4:31 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Backup of Win2`K Fileserver


Hello

I have a BIG performance problem with the backup of a win2k fileserver. It used 
to be pretty long before but it was managable. But now the sysadmins put it on 
a compaq
storageworks SAN. By doing that they of course changed the drive letter. Now it 
has to do a full backup of that drive. The old drive had  1,173,414 files and 
120 GB  of
data according to q occ. We compress at the client. We have backup retention 
set to 2-1-NL-30. The backup had been running for 2 weeks!!! when we cancelled 
it to try to
tweak certain options in dsm.opt. The client is at 4.2.1.21 and the server is 
at 4.1.3 (4.2.2.7 in a few weeks). Network is 100 mb. I know that journal 
backups will help
but as long as I don't get a full incremental in it doesn't do me any good. 
Some of the settings in dsm.opt :

TCPWindowsize 63
TxnByteLimit 256000
TCPWindowsize 63
compressalways yes
RESOURceutilization 10
CHAngingretries 2

The network card is set to full duplex. I wonder if an FTP test with show some 
Gremlins in the network...?? Will try it..

I'm certain the server is ok. It's a F80 with 4 processors and 1.5 GB of RAM, 
though I can't seem to get the cache hit % above 98. my bufpoolsize is 524288. 
DB is 22 GB
73% utilized.

I'm really stumped and I would appreciate any help

Thanks

Guillaume Gilbert

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