Hello, I've got a Dell server which has part of its storage served via fibre channel from an IBM DS4800 storage unit (which has two controllers). The Dell server has a QLogic dual channel HBA.
I've got basic multipathing set up, i.e. pairs of SCSI devices are coalesced into single devices in /dev/mpath. However, when I use DS4800's management software to specify a new preferred path, the server doesn't seem to respect it. Shortly after such a configuration change, a SAN alarm is thrown: "Logical Drive Not On Preferred Path". Googling results in many different, somewhat conflicting advice on how to interact with a DS4800 system. http://www.ibm.com/developerworks/linux/library/l-multipath-xen/ mentions special add-on kernel driver software; I would very much like to stay clear of such 3rd party kernel stuff. Does anyone have experiences with DS4800 SAN equipment in relationship with RHEL 5 which they would like to share? -- Regards, Troels Arvin <[EMAIL PROTECTED]> http://troels.arvin.dk/ _______________________________________________ rhelv5-list mailing list [email protected] https://www.redhat.com/mailman/listinfo/rhelv5-list
