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

c. Edit the value for default parameter in /boot/grub/menu.lst file to boot with the new
initrd image.
SAN configuration supported by DM Multipath
Table 2 lists the maximum SAN configuration supported by DM Multipath.
Table 2 Maximum SAN configuration supported by DM Multipath
512Maximum number of LUNs supported
32Maximum number of paths per LUN
8Maximum number of HBAs
2048Total number of SAN devices
NOTE:
If the total number of LUNs is 512, each LUN can have 4 paths which leads to 2048 (512*4) devices.
Maximum SAN configuration supported by DM Multipath is only on SLES 11 operating systems.
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