On Fri, 18 Jan 2008, Eric Peterson wrote: > On Jan 18, 2008 6:17 PM, Mike Miller <mbmiller at taxa.epi.umn.edu> wrote: >> It seems to >> be working -- is there any way to test it? If one of the drives fails, do >> we get a warning message? > > Regarding testing, read the manual. I don't remember the exact tests > but I believe you mark individual drives/partitions as failed and blah > blah blah... read the manual. (Link to teting section > http://tldp.org/HOWTO/Software-RAID-HOWTO-6.html) > > 'cat /proc/mdstat' will tell you what is currently happening with your > arrays. Setup mdadm to warn you in case of a failure via email. Thanks, Eric. Read the manual? Why didn't I think of that? I sent it on to the guy who is actually managing that box to make sure that he has the monitoring configured. There isn't much point in using it if you don't monitor! I wonder what would happen if I just yanked the power plug out of a running drive. They advise against it! Mike