Veritas-bu

[Veritas-bu] Disk cache to tape very slow

2003-05-27 10:50:52
Subject: [Veritas-bu] Disk cache to tape very slow
From: william_h_blandy AT fanniemae DOT com (William H Blandy)
Date: Tue, 27 May 2003 10:50:52 -0400
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We are using a disk cache (Hitachi), running 4.5 MP4 on a Sun4800 media
server with 24gb mem, 12 CPUs, and 10 2GB emulex HBA's attached to the
SAN .  After backing up to disk we vault to tape (2 or 3 copies).  We
are using STK silo's, both 9840B and 9940B tape drives.  We are seeing a
lot of starting and stopping, seems like it copies an image to tape and
then stops, copies another to tape, stops, etc.  Has anyone else seen
this behavior? Does anyone know of a fix?   Thanks, Bill

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<DIV><SPAN class=3D526164514-27052003><FONT face=3DArial>We are using a =
disk cache=20
(Hitachi), running 4.5 MP4 on a Sun4800 media server with 24gb mem, 12 =
CPUs, and=20
10 2GB emulex HBA's attached to the SAN&nbsp;.&nbsp; After backing up to =
disk we=20
vault to tape (2 or 3 copies).&nbsp; We are using STK silo's, both 9840B =
and=20
9940B tape drives.&nbsp; We are seeing a lot of starting and stopping, =
seems=20
like it copies an image to tape and then stops, copies another to tape, =
stops,=20
etc.&nbsp; Has anyone else seen this behavior? Does anyone know of a=20
fix?&nbsp;&nbsp; Thanks, Bill</FONT></SPAN></DIV></BODY></HTML>

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