On Sun, May 31, 2009 at 7:07 AM, Leslie Rhorer <lrhorer@xxxxxxxxxxx> wrote: >> -----Original Message----- >> From: Neil Brown [mailto:neilb@xxxxxxx] >> Sent: Saturday, May 30, 2009 4:47 PM >> To: lrhorer@xxxxxxxxxxx >> Cc: linux-raid@xxxxxxxxxxxxxxx >> Subject: Re: Events? >> >> On Saturday May 30, lrhorer@xxxxxxxxxxx wrote: >> > >> > What does the "Events" field reported by -Dt signify, and why does the >> > number sometimes decrease? I've seen the number change, but I don't see >> > anything in any of the system logs corresponding to something that would >> > seem to relate. >> >> Changes just as device failure and adding or removing a device. >> Also transitions from 'active' to 'clean' and back. > > OK, but shouldn't these transitions at least be logged somewhere? > >> Sometimes the dirty->transition causes the event counter to retreat if >> md is use the new 'clean' state is indistinguishable from the old >> 'clean' state. This allows us not to always be waking up spare drives >> just to tell them about clean->active->clean transitions. > > That makes sense, but I think the admin should be able to inspect the > details of the transactions. > Yes, this really can be very useful for any inspection, we should surely log any state changes. > -- > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- Regards, Sandeep. “To learn is to change. Education is a process that changes the learner.” -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
