HPUX iscsi

[Fabrizio Maggioni_2]

Hi ,

I would like to know if the latest version of Service Guard, support iscsi storage connection.
Do you have any release notes about this configuration?

Thanks.
Fabrizio

[Duncan Edmonstone · Accepted solution]

iSCSI (SCSI over TCP/IP) is not supported for shared storage with Serviceguard.

The reason for this is because Serviceguard requires being able to ensure that all storage I/O initiated from a node that has been ejected from the cluster will be completed or abandoned before any other node can start packages from the ejected node. The error recovery (packet retransmission) built into TCP/IP opens the possibility for I/O from an ejected node to arrive to the storage after other nodes in the cluster have taken ownership of the shared storage for a package, which would result in data corruption, so it cannot be supported today. Additionally, iSCSI on HP-UX would need to support multiple initiators before Serviceguard could support it.

HTH

Duncan

[Fabrizio Maggioni_2]

Thanks!