HP P10000 - Additional Flooring Recommendations

0/0/4/1/0.0x20420002ac000036.0x4002000000000000
0/0/4/1/1.0x21520002ac000036.0x4002000000000000
In the LUN path the 16 bits address following the target port ID
(0x20420002ac000036) represents the LUN number where the device is seen and
the addressing mode. For example, for 0x4001 (which translates to
0100000000000001) the first two bits 01 represents VSA mode and the remaining
14 bits represent the LUN number, which is LUN 1 in this example.
The host uses estp driver for target paths, eslpt for LUN paths and esdisk as
disk driver.
5) You can find the health of a device, target, LUN path and determine whether it is
on or off line using the -P option. The -C option can be used to specify attributes
such as target ports, disks, or individual LUN paths. The status limited means some
paths are taken offline from the available multiple paths
# ioscan -P health -C tgtpath
Class I H/W Path health
====================================
tgtpath 2 0/0/0/3/0.0x6 online
tgtpath 0 0/0/4/1/0.0x20420002ac000036 online
tgtpath 1 0/0/4/1/1.0x21520002ac000036 offline
#ioscan -P health -C disk
Class I H/W Path health
===============================
disk 2 64000/0xfa00/0x0 online
disk 0 64000/0xfa00/0x23e online
disk 1 64000/0xfa00/0x23f online
disk 3 64000/0xfa00/0x240 limited
disk 4 64000/0xfa00/0x241 limited
# ioscan -P health -C lunpath
lunpath 0 0/0/4/1/0.0x20420002ac000036.0x0 online
lunpath 4 0/0/4/1/0.0x20420002ac000036.0x4001000000000000 online
lunpath 5 0/0/4/1/0.0x20420002ac000036.0x4002000000000000 online
lunpath 1 0/0/4/1/1.0x21520002ac000036.0x0 offline
lunpath 2 0/0/4/1/1.0x21520002ac000036.0x4001000000000000 offline
lunpath 9 0/0/4/1/1.0x21520002ac000036.0x4002000000000000 offline
5. A given DSF file (/dev/disk/diskXX) once allocated to a given unique device (HP 3PAR
Storage System VV) remains persistent and will not be reused for any other devices (VVs) even
after the original device (VV) is removed. Whenever the actual or original VV reappears, the
same DSF name is allocated.
Example:
Issuing showvlun -a on the HP 3PAR Storage System shows that the HP 3PAR Storage
System VV hpcheck is exported as LUN 20.
# showvlun -a
Lun VVname Host -Host_WWN/iSCSI_Name- Port Type
20 hpcheck sqahpit2 50060B00001D1192 1:5:2 host
20 hpcheck sqahpit2 50060B000068D5A4 0:4:2 host
Setting Up Multipathing Software on 11i v3 23