Veritas-bu

[Veritas-bu] optimal backup performance

2001-10-05 14:36:02
Subject: [Veritas-bu] optimal backup performance
From: rob AT worman DOT org (Rob Worman)
Date: Fri, 05 Oct 2001 13:36:02 -0500
In your situation I'd be happy if I saw backups going 25 GB/hr or faster.

But that assumes that your network is the bottleneck - in this day and 
age, that's a safe assumption to make about a 100Mbit backup network.  I 
would be remiss if I didn't also bring up the possibility that your tape 
drives or your client disk access represents a slower bottleneck.


Some "rules of thumb" conversion factors that you might find handy:
    -it's pretty rare to see a 100Mbit network that goes much faster 
than 75Mbit
    -1MB/sec = 8Mbit
    -1GB/hr = 3.6MB/sec

    so your 100Mbit network = ~75 Mbit "real world max" = ~9 MB/sec = 
~28 GB/hr

HTH
rob

Jeff Maley wrote:

>this may seem like a vague question, but i am new to veritas. in a 100mbit 
>switched network, what would be the "normal" backup throughput? we are seeing 
>anywhere from 4MB/s to <50KB/s and i want to known what the goal is. other 
>information about the environment:
>master server: nt server 4, sp5
>veritas datacenter 3.4
>patch level 3.4.1_1
>storagetek l700
>
>jeff maley
>enterprise operations
>::macromedia::
>415.832.4286
>415.218.3106
>jmaley AT macromedia DOT com
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