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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

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

}

"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"

P3AM-6612-14ENZ0