Gary E. Miller posted on Fri, 21 Jun 2013 11:50:43 -0700 as excerpted: > On Fri, 21 Jun 2013 11:38:00 -0700 Mark Knecht <markkne...@gmail.com> > wrote: > >> On the read side I'm not sure if I'm understanding your point. I agree >> that a so-designed RAID1 system could/might read smaller portions of a >> larger read from RAID1 drives in parallel, taking some data from one >> drive and some from another drive, and then only take action corrective >> if one of the drives had troubles. However I don't know that >> mdadm-based RAID1 does anything like that. Does it? > > It surely does. I have confirmed that at least monthly since md has > existed in the kernel.
Out of curiosity, /how/ do you confirm that? I agree based on real usage experience, but with a claim that you're confirming it at least monthly, it sounds like you have a standardized/scripted test, and I'm interested in what/how you do it. -- Duncan - List replies preferred. No HTML msgs. "Every nonfree program has a lord, a master -- and if you use the program, he is your master." Richard Stallman