HP 6400.8400 Enterprise Virtual Array - Manual (Page 66)

ESXi 5.x
•
The # esxcli storage nmp device set --device
naa.6001438002a56f220001100000710000 --psp VMW_PSP_MRU
command sets
device naa.6001438002a56f220001100000710000 with an MRU multipathing policy.
•
The # esxcli storage nmp device set --device
naa.6001438002a56f220001100000710000 --psp VMW_PSP_FIXED
command sets
device naa.6001438002a56f220001100000710000 with a Fixed multipathing policy.
•
The # esxcli storage nmp device set --device
naa.6001438002a56f220001100000710000 --psp VMW_PSP_RR
command sets
device naa.6001438002a56f220001100000710000 with a RoundRobin multipathing
policy.
Specifying DiskMaxLUN
The DiskMaxLUN setting specifies the highest-numbered LUN that can be scanned by the ESX
server.
•
For ESX 2.5.x, the default value is 8. If more than eight LUNs are presented, you must change
the setting to an appropriate value. To set DiskMaxLUN, select Options> Advanced Settings
in the MUI, and then enter the highest-numbered LUN.
•
For ESX 3.x or ESX 4.x, the default value is set to the Max set value of 256. To set
DiskMaxLun
to a different value, in Virtual Infrastructure Client, select Configuration> Advance
Settings> Disk> Disk.MaxLun, and then enter the new value.
Verifying connectivity
To verify proper configuration and connectivity to the SAN:
•
For ESX 2.5.x, enter the # vmkmultipath -q command.
•
For ESX 3.x, enter the # esxcfg-mpath -l command.
•
For ESX 4.x or ESXi 5.x, enter the # esxcfg-mpath -b command.
For each LUN, verify that the multipathing policy is set correctly and that each path is marked on.
If any paths are marked dead or are not listed, check the cable connections and perform a rescan
on the appropriate FCA. For example:
•
For ESX 2.5.x, enter the # cos-rescan.sh vmhba0 command.
•
For ESX 3.x, ESX 4.x, or ESXi 5.x, enter the # esxcfg-rescan vmhba0 command.
If paths or LUNs are still missing, see the VMware or HP Storage documentation for troubleshooting
information.
Verifying virtual disks from the host
To verify that the host can access the virtual disks, enter the # more /proc/scsi/scsi command.
The output lists all SCSI devices detected by the server. An EVA6400/8400 LUN entry looks similar
to the following:
Host: scsi3 Channel: 00 ID: 00 Lun: 01
Vendor: HP Model: HS400 Rev:
Type: Direct-Access ANSI SCSI revision: 02
Verifying virtual disks from the host
Use the VMware vCenter management GUI to check all devices (see Figure 25 (page 67) ).
66 Configuring application servers