MSA1000 & two cluster w2003/SGLinux

[Albert Malvehy]

Hi all,
I have a MSA100 & one built-in 8 port SAN switch behind tow nodes on cluster W2003 with one single-port per node. I need a second disk array by a HP Serviceguard/linux cluster. ¿Is possible to use my MSA1000 to connect this linux cluster maintain de first 2003 cluster simultaneously?

Thanks a lot.

[Jose Chavarria]

Hi,

Yes you can use the existing switch, just enable zoning in the switch configuration. Create 1 zone for the Windows cluster with the 2 nodes and the MSA1000, then a second one with the Linux cluster. The best is to zone by WWN not by port.

Jose

[James Muell]

You do realize that a Linux cluster and a windows cluster is not supported by HP - see HP's cluster compatability matrix -- on the same MSA, let alone with only one switch. Controller failover will inevitably cause failure in both, not to mention the possibility of corrupting your data.

[Jose Chavarria]

Sorry to differ James, please check the SAN Design Guide page 159, table 93. Now what may cause data corruption is when you present Linux Luns to a Windows server/cluster, or Windows Luns to a Linux server (I'm attaching the link below); that is why zoning and selective storage presentantion (SSP) are required. Remember that to have a redundant MSA1000 you'll need a 2nd controller and 2/8 switch, multipathing is software is required too, if you have multiple paths.

http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00403562/c00403562.pdf

Jose