Managing multipathing, Vmware lun multipathing policies – HP EVA Array iSCSI Connectivity Option User Manual
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2.
Configure the VMkernel, Service console with a dedicated virtual switch and two dedicated NICs in
Teaming for iSCSI data traffic. Follow the instructions from VMware to set up NIC teaming.
3.
When configuring the iSCSI software Initiator, set up the Discovery Address:
a. Open the iSCSI Initiator Properties dialog box, see
iSCSI initiator setup for VmWare
b. Click the Dynamic Discovery tab.
c. Click Add to add a new iSCSI target. The Add Send Target Server dialog box is displayed.
d. Enter the first mpx100/100b iSCSI IP address.
e. Click OK.
f. Repeat steps a through e above to add the second mpx100/100b IP address.
4.
Present the LUNs to initiators via HP Command View, selecting the host mode, Linux/MacOS.
5.
Rescan the volumes to identify the new LUNs in VMware server.
6.
Present the iSCSI storage for Guest OS Virtual Machine. Use the same procedure that is used for a
single path setup (“
iSCSI initiator setup for VmWare
Managing multipathing
VMware defines the path states as:
•
Active—The path is working and currently used for all data transfers.
•
Disabled—The path is disabled and no data can be transferred.
•
Standby—The path is working but not currently used for transferring data.
•
Dead—The initiator cannot connect to the storage via this path.
VMware LUN multipathing policies
Multipathing policies supported by VMware include:
•
Fixed—The ESX server always uses the preferred path when that path is available. If it cannot
access the LUN through the preferred path, then it fails over to alternate path. Fixed is the default
policy for Active/Active arrays. Fixed is the default policy.
EVA iSCSI connectivity user guide
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