IBM SAN Error Message

[fdiekmann]

Hi,

i saw similar messages on a IBM DS 4300 or DS4700 some time ago (2-node cluster NW 6.5SP6).
Some (older) SAN-switches at the customers site there were only able to correct path errors after reboot or power off of the switch.
Do you see errors in your management software for the SAN enclosure?

Kind regards
Frank Diekmann

Not sure if this is more appropriate here or under "Storage" but here it is: We have a 4 node NW 6.5/SP7 NCS cluster on an IBM DS4400 Storage Server. We have been seeing this message for some time: "Logical Drive not on preferred path due to ADT/RDAC failover". Any other IBM SAN users out there ever see this? IBM is telling us it's because we do not have multipathing configured properly. Strange that it's worked fine for over 5 years with no errors and now they say we have a config issue. Thanks.