Re: [zfs-discuss] rpool gone after zpool detach

[Jan Riechers]

On Sun, May 2, 2010 at 3:51 PM, Jan Riechers <jan.riechers@xxxxxxxxxxxxxx> wrote:

On Sun, May 2, 2010 at 6:06 AM, Roy Sigurd Karlsbakk <roy@xxxxxxxxxxxxx> wrote:

----- "Jan Riechers" <jan.riechers@xxxxxxxxxxxxxx> skrev:

I am using a mirrored system pool on 2 80G drives - however I was only using 40G since I thought I might use the rest for something else. ZFS Time Slider was complaining the pool was filled for 90% and I decided to increase pool size.
What I did was a zpool detach of one of the mirrored hdds and increased the partition size to 100% with fdisk. When I wanted to reattach the hdd, system complained about an IO error and it hang.
Now the rpool is gone on both drives (I also tried to find it via zpool import booting from USB - without success). Is there any chance I can recover the lost rpool? And what did I do wrong (except for not having a backup first)?

_______________________________________________
zfs-discuss mailing list
zfs-discuss@xxxxxxxxxxxxxxx
http://mail.opensolaris.org/mailman/listinfo/zfs-discuss

What error messages do you get? Please give more info

Hi roy I'm not sure what the error message said in detail - however I cannot boot anymore since grub won't find the pool. However looking with zdb -l It finds at least on of the hdds 2 labels (the other which I didn't touch shows no label):
pfexec zdb -l /dev/dsk/c6t5d0s2

Is there a chance to fix this pool?

 

I managed to put back the old partition table/slice setup - since zdb showed some outdated pool on s2 - when I got back the correct slice setup - I could simply use c6t5d0s0 as rpool root.
The mirrored disk was never really bootable and the mirror somehow broken. Is there an official howto for setting up a mirror for the rpool?
-- 
Jan

_______________________________________________
zfs-discuss mailing list
zfs-discuss@xxxxxxxxxxxxxxx
http://mail.opensolaris.org/mailman/listinfo/zfs-discuss