• For ESX 3.0 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 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, enter the # esxcfg-rescan vmhba0 command.
If paths or LUNs remain missing, see the VMware or HP StorageWorks 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 EVA4400 LUN entry looks similar to the
following:
Host: scsi3 Channel: 00 ID: 00 Lun: 01
Vendor: HP Model: HSV300 Rev:
Type: Direct-Access ANSI SCSI revision: 02
HP StorageWorks 4400 Enterprise Virtual Array installation guide 77
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