•
Enable AutoSupport
– Automatically monitor the health of your storage array and have
dispatches sent to technical support.
Step 4. If you have not already created a volume, create one by going to
Storage
➙
Volumes
➙
Create
➙
Volume
.For more information, see the online help for ThinkSystem System Manager.
Configure the multipath software
Multipath software provides a redundant path to the storage array in case one of the physical paths is
disrupted. The multipath software presents the operating system with a single virtual device that represents
the active physical paths to the storage. The multipath software also manages the failover process that
updates the virtual device. You use the device mapper multipath (DM-MP) tool for Linux installations.
Before you begin
You have installed the required packages on your system.
• For Red Hat (RHEL) hosts, verify the packages are installed by running rrp
pm
m --q
q d
deevviiccee--m
maap
pp
peerr--
m
mu
ullttiip
paatth
h.
• For SLES hosts, verify the packages are installed by running rrp
pm
m --q
q m
mu
ullttiip
paatth
h--tto
oo
ollss.
By default, DM-MP is disabled in RHEL and SLES. Complete the following steps to enable DM-MP
components on the host.
If you have not already installed the operating system, use the media supplied by your operating system
vendor.
Step 1. If a
multipath.conf
file is not already created, run the #
# tto
ou
ucch
h //eettcc//m
mu
ullttiip
paatth
h..cco
on
nff command.
Step 2. Use the default multipath settings by leaving the
multipath.conf
file blank.
Step 3. Start the multipath service.
# systemctl start multipathd
Step 4. Configure multipath for startup persistence.
# chkconfig multipathd on
Step 5. Save your kernel version by running the u
un
naam
mee --rr command.
# uname -r
3.10.0-327.el7.x86_64
You will use this information when you assign volumes to the host.
Step 6. Do one of the following to enable the m
mu
ullttiip
paatth
hd
d daemon on boot.
If you are using....
Do this...
RHEL 6.x systems:
cch
hkkcco
on
nffiig
g m
mu
ullttiip
paatth
hd
d o
on
n
RHEL 7.x systems:
ssyysstteem
mccttll een
naab
bllee m
mu
ulliip
paatth
hd
d
SLES 12.x and 15.x systems:
ssyysstteem
mccttll een
naab
bllee m
mu
ulliip
paatth
hd
d
Step 7. Rebuild the iin
niittrraam
mffss image or the iin
niittrrd
d image under
/boot directory
:
If you are using....
Do this...
RHEL 6.x and 7.x systems:
d
drraaccu
utt ----ffo
orrccee ----aad
dd
d m
mu
ullttiip
paatth
h
SLES 12.x and 15.x systems:
d
drraaccu
utt ----ffo
orrccee ----aad
dd
d m
mu
ullttiip
paatth
h
68
ThinkSystem DE Series Hardware Installation and Maintenance Guide for 2U Enclosures
Summary of Contents for DE120S
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