Is there maybe some IO problem on the iSCSI target side? IIUIC the problem is some timeout, which could indicate that the target is overloaded.
Maybe. I need to check with Dell. I did manage to get it to be a little more stable with this config. defaults { polling_interval 10 path_selector "round-robin 0" path_grouping_policy multibus getuid_callout "/usr/lib/udev/scsi_id --whitelisted --replace-whitespace --device=/dev/%n" path_checker readsector0 rr_min_io_rq 100 max_fds 8192 rr_weight priorities failback immediate no_path_retry fail user_friendly_names no } devices { device { vendor COMPELNT product "Compellent Vol" path_checker tur no_path_retry fail } } I referenced it from http://en.community.dell.com/techcenter/enterprise-solutions/w/oracle_soluti.... I modified it a bit since that is Red Hat 5 specific and there have been some changes. It's not crashing anymore but I'm still seeing storage warnings in engine.log. I'm going to be enabling jumbo frames and talking with Dell to figure out if it's something on the Compellent side. I'll update here once I find something out. Thanks again for all the help.