As I said I *removed* the drive in the sda location. I then put the mirrored drive (on sdb) in its place (into sda). Now sdb is running in the sda slot. I appreciate the suggestion, however, I do understand how RAID 1 works I understand what RAID 1 is. Yes I do have messages that sdb is missing. I can disregard those messages for the moment. However, since it is RAID 1 at the bios level, thats probally why I'm not seeing tons of message about it missing. My concern is I am still getting the same error. for the device at sda. However, it is a different device was. I have never seen RAID 1 transfer bad sector to the mirrored drive. I don't even think that is possible since we are talking about a physical defect. . . . . . aren't we? Robert Canary OCDirect Electrical-Datacomm (866) 594-0786 Fax (270) 955-0362 Voice ----- Original Message ----- > Robert Canary wrote: > > Sorry for the confusion. > > > > Two drives sda and sdb are mirrored with RAID 1 > > Getting errors on sda. > > I removed the sda, and moved sdb into the sda position > > > > However, I am still getting the same errors on the sda. > > > First, but based on what you've written, you really need to read up > on > what RAID 1 *is*. > > Second, when you say you removed /dev/sda, did you take it out of the > box, > or just swap positions? If the latter, then a) the system still sees > it as > sda: that's not something you've made any changed to - the system > will > look for a LABEL or UUID, b) if you did take it out, and replace it > with > another, new, physical drive, then there will be RAID messages saying > it's > rebuilding, and c) if you just took it out, and there's only the one > drive, the former /dev/sdb, you will be seeing tons of messages that > RAID > is degraded. > > mark > > > > > ----- Original Message ----- > >> On 07/25/12 07:18, Robert Canary wrote: > >> > I have RHEL machine here that becomes so unresponsive the mail > >> > server > >> > it is hosting practically stops. It is currently running a > >> > mirrored > >> > drive between sda and sdb. I have been getting the following > >> > errors > >> > in the log files, so I moved the mirrored drive to sda and > >> > disabled > >> > the (old) sda. Currently the system seems to be stable again, > >> > however, I am still getting these errors. > >> > >> I'm sorry, but I don't understand what you did. You mention two > >> drives, > >> and then "the (old) sda". ? > >> > >> Next, is this RAID 1? > >> > > >> > Any ideas where to go to fix it. Could it be bad sectors where > >> > transferred to the mirrored drive? Running smartmontools-5.3 I > >> > >> No. Bad sectors are *physical* errors on the platter. > >> <snip> > >> mark > >> > >> -- > >> When was the pleistocene? > >> Around 1.8 million years ago, til about 10K years ago. > >> What era are we in now? > >> Trouble. > >> > >> -- > >> redhat-list mailing list > >> unsubscribe > >> mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > >> https://www.redhat.com/mailman/listinfo/redhat-list > >> > > > > -- > > redhat-list mailing list > > unsubscribe > > mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > > https://www.redhat.com/mailman/listinfo/redhat-list > > > > > -- > redhat-list mailing list > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > https://www.redhat.com/mailman/listinfo/redhat-list > -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
