We have a SAN from EMC, fiber connected to our Novell Netware 6.5 cluster nodes (Dell Poweredge 1950).
There is also a Dell Powervault 132T fiber connected to the SAN.

The problem is that when we switch off (poweroff) the Dell Powervault 132T, all cluster nodes abend and appear to loose connection to the SAN.

Server have Netware 6.5 SP8
Qlogic cards QL2340 with latest firmware
EMC san switches have latest firmware
Tape drive has latest firmware
The is no arbitrary loop in the SAN.
powerpath.cdm is used for the san multipath

I have attached the abend log.

Could this be a problem with scsihd.cdm having problems with a device that no longer exists?