[Veritas-bu] Buffer settings LTO II vs LTO IV

Subject:	[Veritas-bu] Buffer settings LTO II vs LTO IV
From:	"Scott Jacobson" <SJACOBSO AT novell DOT com>
To:	"nbu" <veritas-bu AT mailman.eng.auburn DOT edu>
Date:	Fri, 16 Jan 2009 15:49:05 -0700

Environment: Linux, NBU 6.5.2a

In an environment with HP LTO II's, I've been using for some time and with good results:

NET_BUFFER_SZ (65536)

SIZE_DATA_BUFFERS (262144)

NUMBER_DATA_BUFFERS (32)

My question is has anyone seen the need, or any performance improvement by changing these setting after implementing a system with LTO IV's drives?

The drives in question are HP, but I'll look forward in hearing about any experience that resulted in a performance fix or increase.

The HP drives in question are not yet in use.

Thanks,

Scott

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