Fujitsu eternus af Yapılandırma Kılavuzu - Sayfa 25
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Chapter 9
Setting the Multipaths
9.2
Multipath Configuration Using Native Multipath
Lunpath hardware path format example
-
0/3/1/1.0x2041000b5d6a0109.0x4000000000000000
The underlined portion indicates WWN of Fibre Channel port in ETERNUS AF/DX.
9.2.2
Enabling ALUA (alua_enabled)
ALUA is supported by HP-UX11iv3 Sep 2007 ver. or later.
If the OS supporting ALUA is used, check the "alua_enabled" setting and set it to "true" if it is not.
1
Check whether the OS supports ALUA.
To check whether the OS supports ALUA, use the "scsimgr" command and check existence of the
"alua_enabled" attribute.
Example of OS supporting ALUA
# scsimgr get_attr | grep alua_enabled
name = alua_enabled
If executing the command displays nothing, the OS does not support ALUA. In this case, the operations
described below are not required.
2
Check the "alua_enabled" setting.
Use the "scsimgr" command to check the "alua_enabled" attribute for each LUN.
Execute the command for all LUNs in the ETERNUS AF/DX.
Example for checking the "alua_enabled" setting
# scsimgr get_attr -D /dev/rdisk/disk25 -a alua_enabled
name = alua_enabled
current = true
default = true
saved = true
If "current" and "saved" are indicated as "true", ALUA is already enabled. In this case, the operations
described below are not required.
3
Set "alua_enabled".
Use the "scsimgr" command to set the "alua_enabled" attribute to "true" for each LUN.
FUJITSU Storage ETERNUS AF, ETERNUS DX Configuration Guide -Server Connection- (Fibre Channel) for HP-UX
SCSI ATTRIBUTES FOR LUN : /dev/rdisk/disk25
Copyright 2020 FUJITSU LIMITED
25
P3AM-3772-22ENZ0