7
VMA Array Considerations
For connection of VMA Arrays to a redundant pair of VMA SAN Gateways you will be instructed to
update the VMA Array firmware to a dual x4 connectivity mode version of the array firmware.
CAUTION: You cannot backdate or downgrade firmware on a VMA Array to an earlier (older) version
of firmware; you can only update to the same or newer versions.
When VMA Arrays are connected to the VMA SAN Gateway, ‘containers’ are created on the array by
initializing the media from the gateway CLI. In order for the correct container layout to be present
on the VMA Array media for use with redundant gateways, it is required that any pre-existing
containers on the array media was initialized with VMA SAN Gateway software version G5.0.2 or
newer.
VMA SAN Gateway Considerations
As part of configuring a redundant pair of VMA SAN Gateways, you will need to update each VMA
SAN Gateway to the same gateway software OE version, minimally G5.1.0. Note:
• Only VMA SAN Gateways running G5.0.2 can be updated to G5.1.0 gateway software (for
DL380 G7)
• Only VMA SAN Gateways running G5.1.0 can be updated to G5.5.1 gateway software (for
DL380 G7)
• G5.5.1 gateway software or newer for DL380 Gen8
Also for the pairing of redundant gateways to be successful and supported, it is required that the
VMA SAN gateways have an identical configuration of PCIe slots, 8Gb FC HBAs and PCIe pass-thru
cards in the same I/O slots. During the pairing process you will be instructed when to install any
additionally required VMA PCIe Pass-Thru cards (P/N AM464A) and update the VMA SAN Gateways
software OE.
With Redundant VMA SAN Gateway pairs, the configuration for Ethernet ports, FC ports, array
containers and LUNs is applied the same to both gateways. For example, when limiting LUN access
to a specific set of gateway target ports, this will be applied to the same gateway target ports on
both gateways. Thus when planning for configuration of LUNs, export to initiator ports or igroups,
target port assignment and connections to FC switches, care should be made that the associated FC
SAN Switch ports are correctly zoned for desired host server discovery and access of LUNs and
lunpaths.
Determine the number and sizes of LUNs which will be created on the connected VMA Arrays, which
gateway target ports will provide access to the LUNs and which host server initiator ports will be
given access to which LUNs. The LUN and access export configuration determined will initially be
configured on the ‘primary’ gateway and will later be imported to the ‘secondary’ gateway.
Ethernet Network Planning and Considerations
An essential component of the redundant gateway pair configuration is a reliable network. This is
achieved by:
• Bonding two Ethernet ports on each VMA SAN Gateway to increase availability of network
access to each gateway
(178 pages)
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