8
Table 1. VMA SAN Gateway FC target port naming.
VMA SAN Gateway
HBA I/O Slot #
Note that only the FC HBAs installed in I/O slots #2 and #3 come with the default configuration of
the VMA SAN Gateway. The FC target HBAs in I/O slots #5 and #6 are optional and will only be
present if ordered as add-on components, P/N AJ764A. As mentioned previously and shown in
Figures 4 and 5, it is recommended to have only two HBAs, four target ports, per connected VMA
array.
Configuring and presenting LUNs to connected host servers
The VMA SAN Gateway provides the ability to selectively present LUNs through specific gateway
target ports and to specific host server initiator ports. Refer to the Chapter 4, “Configuring vSHARE”
in the HP VMA SAN Gateway Installation and User Guide for additional details regarding LUN
configuration and selective host presentation and LUN masking.
The VMA SAN Gateway has a maximum queue depth limit of 1024 per 8Gb FC target port. There is
an additional LUN maximum queue depth limit of 256. Connecting host servers must establish
appropriate I/O queue depth settings in order to achieve optimal performance with the VMA SAN
Gateway and avoid heavy FC resource contention and excessive I/O retries. Refer to the section
below titled „Additional Platform/OS Specific Considerations‟ for additional details regarding
establishing appropriate queue depth settings for specific platform/OS combinations.
It is recommended not to configure more than 32 LUNs per connected VMA-series Array at this time.
It is also recommended not to exceed more than eight initiator ports per connected server for optimal
usage; greater numbers of LUNs and initiator ports can cause FC resource contention and excessive
retry traffic. Because the VMA-series Memory Arrays and the VMA SAN Gateway are focused for
specific application environments which require very high I/O throughput with extremely low latency
times, it is also recommended that it not be connected to more than four host servers or partitions for
optimal results.
HP-supported host connectivity with VMA SAN Gateway
While other configurations of the VMA SAN Gateway may be possible, only the following
configurations have been fully tested and are supported by HP at the release of this document. If you
are using a configuration not listed below as a supported configuration, you may be asked to
reconfigure your environment to comply with a supported configuration for HP support entitlement.
Host configuration support matrix
The VMA SAN Gateway with vSHARE version G5.0.2 has been tested and is supported with the
following HP server platforms and operating systems:
Integrity BL8x0c i2 server blades running HP-UX 11i v3 fusion 1109 or newer
Integrity Superdome 2 running HP-UX 11i v3 fusion 1109 or newer
(134 Seiten)
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