Device Mapper Multipath Enablement Kit for HP StorageWorks Disk Arrays v4.3.0 release notes (AA-RWF9H-TE, June 2009)

NOTE:
• For SLES 11, in the device section, replace
“/sbin/scsi_id —g —u —s /block/%n”getuid_callout
with
“/lib/udev/scsi_id —g —u /dev/%n”getuid_callout
• For SLES 10 SP2, in the device section for MSA2012sa, MSA2312sa, and MSA2324sa, replace
“/sbin/hp_scsi_id —g —u —n —s /block/%n”getuid_callout
with
“/sbin/scsi_id —g —u —n —s /block/%n”getuid_callout
• For SLES 10 SP2/SLES11, in the device section, replace
“/sbin/mpath_prio_alua %n”prio_callout
with
aluaprio
• In XP arrays, there are different LUNs, such as OPEN-<x>, 3390-3A, 3390-3B, OP-
C:3390-3C, 3380KA, 3380-KB, and OP-C:3380-KC where x = {3,8,9,K,T,E,V}.
The product strings for XP LUNs are based on these emulation types. A new device section must
be added for each emulation type, because each product string requires a new device subsection.
OPEN-* is sufficient for the product string for all the XP LUNs with different OPEN emulations
because, regular expressions are supported in the /etc/multipath.conf file.
• For more information on editing /etc/multipath.conf file, see the Device Mapper Multipath
Enablement Kit for HP StorageWorks Disk Arrays Installation and Reference Guide. You can find
this document on the Manuals page of Multi-path Device Mapper for Linux Software, which is
accessible at http://www.hp.com/go/devicemapper.
Setting up HPDM Multipath
Setting up HPDM Multipath includes configuring HBA and iSCSI initiator parameters for multipathed
environment. This involves the following:
• Configuring QLogic HBA parameters
• Configuring Emulex HBA parameters
• Configuring iSCSI parameters
• Configuring mptsas parameters
Device Mapper Multipath Enablement Kit for HP StorageWorks Disk Arrays v4.3.0 release notes 11