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Fujitsu ETERNUS DX Disk Manual de configuración
Chapter 8
Setting Up Oracle VM Server
8.4

Checking the Multipath

8.4
Checking the Multipath
The Oracle VM Server multipath improves path redundancy.
Because the multipath function is enabled by default, a multipath configuration is automatically set when a
server with Oracle VM Server and the ETERNUS DX/AF are connected.
The multipath setting does not need to be changed.
Execute the "multipath -ll" command to check the items shown below.
Example:
When the ETERNUS DX60 S4 is connected in a two-path configuration
The multipath consists of the block device names "sdb"
and "sdn". "3600000e00d10000000100105006c0000"
is created.
# multipath -ll
3600000e00d10000000100105006c0000 dm-0 FUJITSU,ETERNUS_DXL
size=2.0G features='1 queue_if_no_path' hwhandler='0' wp=rw
|-+- policy='round-robin 0' prio=50 status=active
| `- 1:0:0:1 sdc 8:32
`-+- policy='round-robin 0' prio=10 status=enabled
`- 2:0:0:1 sdg 8:96
The settings for the ETERNUS DX/AF are stored in the multipath configuration file, "/etc/multipath.conf".
When connecting the ETERNUS DX500 S4/DX600 S4, the ETERNUS DX500 S3/DX600 S3, the ETERNUS
DX8700 S3/DX8900 S3, the ETERNUS AF650 S2, or the ETERNUS AF650, check the "/etc/multipath.conf" file
for the system that is used and apply the necessary changes to the file according to the following exam-
ple.
Example:
•
Add "|ETERNUS_DXM|ETERNUS_DXH" to the "product" line.
devices {
device {
}
8.5
Installing and Setting Oracle VM Manager
Refer to the Oracle VM manuals for details.
FUJITSU Storage ETERNUS DX, ETERNUS AF Configuration Guide -Server Connection- (Fibre Channel) for Oracle VM Server for x86
active ready running
active ready running
Two block device names are
displayed for a two-path
configuration.
vendor "FUJITSU"
product "ETERNUS_DXL|ETERNUS_DX400|ETERNUS_DX8000|ETERNUS_DXM|ETERNUS_DXH)"
prio alua
path_grouping_policy group_by_prio
path_selector "round-robin 0"
failback immediate
no_path_retry 10
}
Copyright 2017 FUJITSU LIMITED
"ETERNUS_DXL" is displayed since
the ETERNUS DX60 S4 is connected.
When the path status is normal,
"active ready" is displayed.
Add "|ETERNUS_DXM|ETERNUS_DXH"
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