On Sun, Feb 27, 2000 at 11:49:55AM +0100, Kelina wrote:
> I'm running a new box with redhat6.1 and 2 5400rpm 15 gig harddisks.
> There's also a cd-rom drive
> on the same controller. Both the hd's are running as masters as a Raid-1
> array, and cd cd-rom as
> primary slave. While trying to get my isdn to work (i managed that now btw)
> i managed to get 2
> hard lockups and one kernel panic which complained about interrupts. This,
> Raid-1 didn't like so it
> started reconstruction, it seems to be working but it's taking *forever*.
> Now my questions are these:
>
> -Is reconstruction supposed to take over 600 minutes?
Yes, this is possible. I have some raid-5 arrays which sometimes take
more than one day to reconstruct, because the machine has heavy disk load
all the time.
Do "cat /proc/mdstat". It will tell you the percentage of completed
reconstuction, and an estimated time to finish.
If the percentage does not increase at all, and the time-to-finish increases
all the time, it is possible that you kernel doesn't do any reconstruction
at all, but the reconstution process hangs. I had this several time esp.
with 2.2.12 and 2.2.13 kernels. 2.2.11 and 2.2.14 are ok.
A hint whether he is reconstructing is your disk activity led. It should be
on all the time while reconstuction is being done.
It is ok to shutdown or reboot your system even while reconstruction is
active. It will start again at next boot. (It starts from beginning and does
not continue.)
> -Does it recontruct the whole 15 gig's, or just the 3 gig of data? If so
> will i need to wait a whole
> day when my hd is full?
> -Does having the cd-rom on the same controller degrade performance, even
> tho it's not used or
> indeed even mounted?
Don't know this.
krd.
