Veritas-bu

[Veritas-bu] optimal backup performance

2001-10-05 14:50:52
Subject: [Veritas-bu] optimal backup performance
From: rob AT worman DOT org (Rob Worman)
Date: Fri, 05 Oct 2001 13:50:52 -0500
ooops, I should have typed:

     1MB/sec = 3.6 GB/hr

Rob Worman wrote:

> 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
>> _______________________________________________
>> Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
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>>
>
>
>
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