7
Note that the title of Chapter 3, Configuring and Managing Clusters, in the HP VMA SAN Gateway
Installation and User Guide is somewhat misleading. The VMA SAN Gateway operating environment
has the ability to configure gateways in a master and slave(s) relationship to provide for single point
of management and monitoring of all member nodes. This „cluster‟ feature, termed as vCLUSTER in
the document, is only applicable to gateway management and monitoring functions and does not
provide for high availability or redundant gateway configurations for access to connected VMA
arrays. The vCLUSTER feature allowing master/slave relationship of gateways for single point of
management and monitoring member gateway nodes has not been fully tested and is not supported
by HP at this time. Currently, only standalone VMA SAN Gateways with singly PCIe connected VMA
arrays are supported by HP. There is no requirement for a private VLAN with standalone gateways.
In order to correctly configure the VMA SAN Gateway as a „standalone gateway‟, follow the
procedures for Configuring the Master Memory Gateway in Chapter 3 of the HP VMA SAN Gateway
Installation and User Guide. The software configuration and setup is the same for a standalone or
master gateway except for the following vCLUSTER specific settings which can be ignored and left at
the default values presented with the setup wizard:
Cluster interface name
Cluster expected nodes – this should be defaulted to „1‟ for standalone.
Cluster id – the Cluster ID is already preset from the HP factory and should be left as is.
Any change of the cluster id value can cause the gateway to not operate correctly. The
Cluster ID and vSHARE license for the VMA SAN Gateway is listed on a label located on the
front right top of the gateway server if it is ever needed for recovery.
Cluster name
Cluster management IP address & netmask
In addition, the following sections in Chapter 3 are not applicable for setting up a standalone VMA
SAN Gateway:
Interface Bonding
Cluster VLAN Configuration
Configuring Additional Gateways
Memory Gateway Cluster Management
SAN connectivity with the VMA SAN Gateway
The VMA SAN Gateway is only supported with Fabric SAN attach topology. Direct connect of VMA
SAN Gateway target ports to a host server‟s initiator ports are not supported; nor are any FC-Loop
topologies. SAN Attach provides added distance, availability and sharing of the connected storage
in the VMA-series Memory Arrays.
The VMA SAN Gateway and connected VMA-series Memory Arrays are best when used in small
groups of two to four connected host servers providing support for a few application services which
require very high performance and low latency I/O operations. While FC SAN does provide much
scale-out capability, the VMA SAN Gateway and connected VMA-series Memory Arrays should not
be considered as general purpose storage and allow connectivity with many sharing hosts. Doing
such can potentially cause degraded performance and excessive I/O resource contention.
There are no special drivers needed to be installed on the connecting host server nodes; standard
8Gb FC HBAs are used for host server connectivity. Supported Fibre Channel adapters and drivers
for the supported HP server platforms and operating systems are listed in Table 2.
The VMA SAN Gateway web GUI and CLI commands associate the available FC target ports with the
following port names. Refer to Figure 2 above for I/O slot numbering.
(134 Seiten)
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