Specifications

DS300f G2 Series User Manual
250
verIfyInG the moDuleS are loaDeD
ToverifythattheDM-MPmodulesareloaded:
1. Openaterminalwindow.
2. Verifythatthemultipathmoduleisloaded.
#lsmod|grepdm_multipath
Ifthemoduleisloaded,thesystemreturns:
dm_multipath 215770(orasimilarmessage)
3. Verifythatthedevicemappermoduleisloaded.
#lsmod|grepdm_mod
Ifthemoduleisloaded,thesystemreturns:
dm_mod 56537 8 dm_snapshot...(orasimilarmessage)
verIfyInG the Daemon IS runnInG
ToverifythattheMPdaemonisrunning:
1. Openaterminalwindow.
2. Checkthedaemon’sstatus.
#/etc/init.d/multipathdstatus
3. Do one of the following actions:
•
Ifthesystemreturns:
multipathd is running(orasimilarmessage)
Goto“Task4:CreateandCongureDevices”onpage480.
•
Ifthesystemreturns:
multipathd is stopped(orasimilarmessage)
StarttheMPdaemon.
#/etc/init.d/multipathdstart
ThengotoTask4:CreateandCongureDevices.
task 4: Create and ConfIGure devICes
Thisstepappliesthesettingsfromthemultipath.congletotheHost.
1. Openaterminalwindow.
2. TypethefollowingcommandandpressEnter:
#multipath-v3
Thesystemreturns:
...
==== paths list ====
uuidhcildevdev_tpridm_stchk_stvend...
222490001555459b3b2:0:0:0sdb8:161[undef][undef]Prom...
222b40000155a75b492:0:0:2sbc8:321[undef][undef]Prom...
20efcff5501000121a3:0:0:0sbd8:481[undef][undef]Prom...
222b44000155ebf0c3:0:0:1sde8:641[undef][undef]Prom...
params=1que_if_no_path011round-robin0118:64100
status=10011A0108:64A0
sde:mask=0x4
sde:pathchecker=readsector0(controllersetting)
sde:state=2
...
(orasimilarmessage)
3. RestarttheMPdaemon.
#/etc/init.d/multipathdrestart
Thesystemreturns:
Stopping multipathd daemon(orasimilarmessage)
Starting multipathd daemon(orasimilarmessage)
Formoreinformationaboutpathmonitoringfunctions,typehelpandpressEnter.