It doesn't seem to matter what size file, it is just a longer wait with a big file. I'm using dd to write a 1 gig file from /dev/zero to the filer. I've tried with both AIX 4.3.3 and 5.2.1 with similar results.

Bill



"Deepak Soneji" <sonejideepak@hotmail.com>
Sent by: owner-toasters@mathworks.com

10/27/2003 04:47 PM

To
<bill_link@dstoutput.com>, <toasters@mathworks.com>
cc
Subject
Re: AIX write performance





We do have AIX servers connected to F960. No issues. What size
file are you trying to dd ?
Thanks
Deepak Soneji
----- Original Message -----
From: bill_link@dstoutput.com
To: toasters@mathworks.com
Sent: Monday, October 27, 2003 3:05 PM
Subject: AIX write performance


Toasters,


I am having difficulty with large file writes to an f720 from any of my IBM hosts, if I start a large write with dd then try to do anything on the filer from that host it hangs until the write completes. From a different host access to the filer is near normal. I do not have this problem with linux boxes on the same network so it seems that the problem lies with AIX somehow.  IBM has been sympathetic although not very helpful.


Any thoughts would be much appreciated.


Bill Link

System Admin

Dstoutput inc.