Hi
As far as I know, you are right concerning the [U_] - it shows you, that
the first
drive is up and the second one is down; if both were up (up to date) you
will got a
[UU].
The [2/1] does indicate nearly the same I think; maybe I am wrong, but
that is how I
understand /proc/mdstat.
Would be nice, if some comments about /proc/mdstat would be found in the
raidtools
documentation next time (or is it right implemented?).
Greetings, Dietmar
James Blanding wrote:
>
> hello...
>
> im looking for a guide to some things in /proc/mdstat. specifically, i have a
> line that says:
> md0 : active raid1 sdc1[2] sdb1[0] 8883840 blocks [2/1] [U_] recovery=1%
> finish=9.9 minutes.
>
> i gather this in general represents something like:
> <md device> : <status> <level> <list of configured devices> <total blocks/aka
> superblock offset?> <?> <?> [recovery/resync completion and time remaining]
> (on an active array of course).
>
> but im curious as to what the 2 bracketed items are. would [2/1] indicate the
> total number of devices configured for md0 over the number currently in an 'ok'
> state? is the [U_] an indication of the individual devices' current status ('U'
> for up maybe)? if so, what are the other possible values besides 'U' and '_'?
> i traced it back to the mdk_personality_s struct in linux/raid/md_k.h but im
> just not C-savvy (victim of evil college C++ migration...) enough to know where
> to go from there :/
>
> im trying to write something that will parse /proc/mdstat and produce out
> readable by less knowledgable people...(unless something like this is already
> under development??)
>
> much appreciated,
> james blanding
--
"For those about to rock - we salute you!"
Dietmar Stein, Systemadministrator UNIX/Linux
http://home.t-online.de/home/dstein2203
[EMAIL PROTECTED], [EMAIL PROTECTED]
