[email protected] wrote on 07/28/2010 04:26:07 AM:
> > I managed to configure the multipathing devices with device-mapper- > multipathing rdac (active-passive), however while system is booting > I can see a lot of messages like: > > Buffer I/O error on device sdaa, logical block 0 > end_request: I/O error, dev sdab, sector 0 > end_request: I/O error, dev sdac, sector 0 > end_request: I/O error, dev sdad, sector 0 > end_request: I/O error, dev sdaf, sector 0 > end_request: I/O error, dev sdae, sector 524287992 > end_request: I/O error, dev sdz, sector 524287936 > end_request: I/O error, dev sdab, sector 0 > printk: 6 messages suppressed. > Buffer I/O error on device sdab, logical block 0 > end_request: I/O error, dev sdac, sector 0 > end_request: I/O error, dev sdad, sector 0 > end_request: I/O error, dev sdaf, sector 0 > end_request: I/O error, dev sdae, sector 524287992 > end_request: I/O error, dev sdz, sector 524287984 > end_request: I/O error, dev sdab, sector 0 > […] > > Probably nash or something else during startup is checking all the > devices (including the passive ones) that cause the very long system > startup (we have like 26 FC devices). > After startup device multipathig works fine, /dev/mapper is full of > aliased devices, but still, from time to time, there are some error > messages appering on the console. Like system was checking the passive nodes. > > Is there any way to prevent such behavior ? If you are running LVM on those devices you might check out Red Hat kbase 35489 https://access.redhat.com/kb/docs/DOC-35489 At the top it says EMC Clariion SAN, but later it mentions what to do if its using HP's cciss driver. -greg _______________________________________________ rhelv5-list mailing list [email protected] https://www.redhat.com/mailman/listinfo/rhelv5-list
