Under heavy load, ie: backups, my netware 6.5 server takes the fibre
channel disk offline. All I can tell is that at some point an I/O does not
complete within a given timeout.
It requires a reboot to get it back back up.

My question is, what, if any, arguments can be used with the emulex, or
scsi drivers to increase the timeout it wait's for pending I/Os

Or, any other insight as to the nature of the problem would be greatly
appreciated.

Here's what is logged to the console:

<SCSIHD>CDMCallBack error! Error=80010002.Sense=0
<SCSIHD>Queue Unfrozen. scsi=38507560.
<SCSIHD>Queue Frozen in Blocking Execute called from DoStartDevice.
scsi=3850756 0. <SCSIHD>Queue Unfrozen. scsi=38507560. <SCSIHD>Queue
Unfrozen. scsi=38507560. <SCSIHD>Queue Unfrozen. scsi=38507560.
<SCSIHD>CDMCallBack error! Error=80060003.Sense=0 <SCSIHD>CDI_Object_Update!
flag=2,status=2,activate=0,device=38507560
<SCSIHD>CDMCallBack error! Error=40000.Sense=0 <SCSIHD>CDMCallBack error!
Error=40000.Sense=0 <SCSIHD>CDMCallBack error! Error=40000.Sense=0
<SCSIHD>CDMCallBack error! Error=40000.Sense=0 <SCSIHD>CDMCallBack error!
Error=40000.Sense=0 <SCSIHD>CDMCallBack error! Error=40000.Sense=0
<SCSIHD>CDMCallBack error! Error=40000.Sense=0 <SCSIHD>CDMCallBack error!
Error=40000.Sense=0 <SCSIHD>CDMCallBack error! Error=40000.Sense=0
<SCSIHD>CDMCallBack error! Error=40000.Sense=0 <SCSIHD>CDMCallBack error!
Error=40000.Sense=0 <SCSIHD>CDMCallBack error! Error=40000.Sense=0
<SCSIHD>CDMCallBack error! Error=40000.Sense=0 <SCSIHD>CDMCallBack error!
Error=40000.Sense=0 <SCSIHD>CDMCallBack error! Error=40000.Sense=0
<SCSIHD>CDMCallBack error! Error=40000.Sense=0 <SCSIHD>CDMCallBack error!
Error=40000.Sense=0 <SCSIHD>CDMCallBack error! Error=40000.Sense=0
Deactivating pool "SANPOOL"... Dismounting Volume DATA

21 Oct 2005 11:22:13 am NSS<COMN>-3.05-xxxx: comnPool.c[2534]
Pool SANPOOL: System data I/O error 20204(zio.c[1895]).
Block 501(file block 229)(ZID 3)


21 Oct 2005 11:22:19 am NSS<ZLSS>-3.05-xxxx: zlssMSAP.c[523]
MSAP: Pool "SANPOOL" read error 20206.


NLMLIB: 10/21/05 11:22:28 - remote console connection (43.0)
opened by GStockle on 10.3.3.118
NLM ASDB : NLM ASDB : Begin purging records
NLM ASDB : (DEFAULT_1397374208,9555,1)