Veritas-bu

[Veritas-bu] performance question

2002-03-13 20:00:12
Subject: [Veritas-bu] performance question
From: larry.kingery AT veritas DOT com (Larry Kingery)
Date: Wed, 13 Mar 2002 20:00:12 -0500 (EST)
If the disks and tape drives on the Oracle box on on the same SCSI
channel, I can see how going over the network could be faster.

Atif Naseem writes:
> I am testing the backup speed on the network as compared to local . I am 
> getting bit strange results.
> I have master server (E250 450MHZ 256 RAM - solaris 8 Netbackup 3.4 data 
> center) having DLT8000 . the Other machine (Sun 220 R , 750Mhz dual proceesor 
> with 1G Ram - Solaris 8)  is on the network acting as media server plus some 
> oracle databases ( Oracle is silent ) nobody is using it. 
> When i try to take local backup of oracle files on the media server i am 
> getting around 6 Meg/sec speed. where as when i  took backup on the network 
> using my master servers's DLT 8000 tape drive i am getting around 10 Meg /sec 
> speed. ???? Network backup i sFAST???????
> Both servers have the  same setting of 64 Meg for data buffer and network 
> buffers sizes . NUmber of buffers are 8.
> 2jobs /client. multiple streaming enable fro that class.I have more then 8 
> samples . every time Network Backup i sfast as compared to local.
> Any thoughts will be highly appriciated
> Atif
> 
> --------------------------------------------------------------
> Atif Naseem
> Unix Consultant 
> Vancouver General Hospital
> anaseem AT vanhosp.bc DOT ca
> -----------------------------------------------------
> 
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-- 
Larry Kingery 
       Don't anthropomorphize computers -- they don't like it.

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