Veritas-bu

[Veritas-bu] Inline tape copy performance

2007-03-06 12:59:59
Subject: [Veritas-bu] Inline tape copy performance
From: Eric.Johnson at mtsallstream.com (Johnson, Eric)
Date: Tue, 6 Mar 2007 12:59:59 -0500
I get 20-30MB/sec with the inline copy from our DSSU. Without the inline
copy, the speed is 40-50MB/sec. So yes, we see the 50% speed hit. Not
sure why.

 

Eric

 

________________________________

From: Santos, Tarso D [mailto:tarso.santos at sun.com] 
Sent: Tuesday, March 06, 2007 12:49 AM
To: veritas-bu at mailman.eng.auburn.edu
Subject: [Veritas-bu] Inline tape copy performance

 

Hi all, 

I am trying to understand how ITC works, Does it split the IO at the
media server or requires more client streams to generate the multiple
copies?

I have a customer which has a problem similar to this one: 
http://www.arcknowledge.com/gmane.comp.sysutils.backup.veritasbu/2005-12
/msg00502.html
<http://www.arcknowledge.com/gmane.comp.sysutils.backup.veritasbu/2005-1
2/msg00502.html>  

And would like to know your experience on ITC. 

Thanks in advance, 

Tarso 

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