Environment
Novell NetWare 6.5 Support Pack
5
Novell NetWare 6.5 Support Pack
6
Novell Open Enterprise Server (NetWare based)
Novell Open Enterprise Server (NetWare based)
IBM Qlogic ql2x00.ham version
6.90h
IBM DS4000 Storage Subsystems
v6.16
Situation
The LUN bouncing condition was
occurring when requests were being sent to a DS4000 controller to
move a LUN to an alternate path and the same request was also being
sent from the alternate path to move the same LUN to the primary
path causing the LUN to be moved back and forth for a period of
time.
Resolution
IBM currently recommends the Qlogic ql2x00.ham version
6.90h however this driver does not work with 6.16 (however the
older 6.15 does work). To make the 6.16 firmware work
requires the Qlogic driver version 6.90o or later (dated December
8, 2006)
There is a patch for NetWare 6.5 SP5 however it is not
supported at this time on SP6. That patch can be found at https://download.novell.com/Download?buildid=TAw0FD_HnnE~~
Additional Information
This was particularly seen with
arrays running 6.16 firmware where the NetWare 6.5 SP5 or SP6 nodes
take minutes plus to start and then still do not support multi-path
correctly. The 6.16 range of firmware is only used with the
EXP810 Fibre SCSI trays that house 4 GB Fibre disks. If the
Array hosts EXP100 (SATA) or EXP710 (2GB Fibre) trays and uses the
6.15 firmware then the existing drivers function correctly
example startup.ncf
SET Multi-path Support = ON
LOAD ACPI.PSM
LOAD IDECD.CDM
LOAD LSIMPE.CDM
LOAD SCSIHD.CDM AEN
LOAD IDEATA.HAM PORT=1F0
INT=E
LOAD ADPT160M.HAM SLOT=10010
LOAD ADPT160M.HAM SLOT=10011
LOAD QL2x00.HAM SLOT=4 /LUNS
/allpaths /portnames /xretry=12 /maxluns=64
LOAD QL2x00.HAM SLOT=5 /LUNS
/allpaths /portnames /xretry=12 /maxluns=64
Note: The AEN after the
SCSIHD.CDM and the LSIMPE.CDM is the first driver
loaded.