I recently installed a Pre-migration NetWare 6.5 SP6 server onto an IBM
x3500 server and the boot process is hanging for a few minutes when it
tries
to load the AACRAID.HAM driver and then subsequently gets to "Scanning for
Devices and Partitions".

It eventually does mount the SYS volume and finish booting, but I am
concerned about the long delay at this stage in the boot process. I've
loaded the SCSIHD.CDM driver with the /debug switch and get the following
output on the logger screen during the hang:

<SCSIHD>SCSI Inquiry - deviceid=0 npaBusID=6 flags=3

<SCSIHD>Sent Device Appeared AEN HACB! npaBusID=6

<SCSIHD>AEN value 0 not supported by HAM

<SCSIHD>SCSI Inquiry - deviceid=C npaBusID=7 flags=0

<SCSIHD>Mutex allocated for device=2,mutex=FE15E540,name=1515071E
<SCSIHD>SCSI Inquiry - deviceid=0 npaBusID=7 flags=3

<SCSIHD>Sent Device Appeared AEN HACB! npaBusID=7

<SCSIHD>Attempting to set mutex. device=2,mutex=FE15E540,mutexName=1515071E

<SCSIHD>Mutex set. device=2

<SCSIHD>Queue Frozen in Blocking Execute called from DoReadCapacity.
scsi=FF5180. dev=2

<SCSIHD>Queue Frozen in Blocking Execute called from ReadAndSetGeometry.
scsi=FF5180. dev=2

<SCSIHD>Queue Unfrozen. scsi=FF5180. dev=2

<SCSIHD>Mount ObjUpd! flag=9,status=0,activate=1,device=FF5180(2)

<SCSIHD>Ret Mount ObjUpd! flag=9,status=0,activate=1,device=FF5180(2)

<SCSIHD>Sent Device Disppeared AEN HACB! scsi=FF5180, dev=2

<SCSIHD>Mutex cleared. device=2

<SCSIHD>SCSI Inquiry - deviceid=0 npaBusID=6 flags=3

<SCSIHD>Sent Device Appeared AEN HACB! npaBusID=6

<SCSIHD>AEN value 0 not supported by HAM

<SCSIHD>SCSI Inquiry - deviceid=0 npaBusID=7 flags=3

<SCSIHD>Attempting to set mutex. device=2,mutex=FE15E540,mutexName=1515071E

<SCSIHD>Mutex set. device=2

<SCSIHD>Queue Frozen in Blocking Execute called from DoReadCapacity.
scsi=FF5180. dev=2

<SCSIHD>Queue Frozen in Blocking Execute called from ReadAndSetGeometry.
scsi=FF5180. dev=2

<SCSIHD>Queue Unfrozen. scsi=FF5180. dev=2

<SCSIHD>Mount ObjUpd! flag=9,status=0,activate=1,device=FF5180(2)

<SCSIHD>Ret Mount ObjUpd! flag=9,status=0,activate=1,device=FF5180(2)

<SCSIHD>Mutex cleared. device=2