Solaris Zone errors

after booting up my zone i get following error

# zlogin -C DB_zone
[Connected to zone 'DB_zone' console]
Sep 29 09:18:46 svc.startd[5680]: Could not log for svc:/system/filesystem/root:default: write(51) failed with I/O error.

Sep 29 09:18:47 svc.startd[5680]: Could not log for svc:/system/installupdates:default: write(17) failed with I/O error.
Sep 29 09:18:47 svc.startd[5680]: Could not log for svc:/network/physical:default: write(10) failed with I/O error.
Sep 29 09:18:47 svc.startd[5680]: Could not log for svc:/network/physical:default: write(10) failed with I/O error.
Sep 29 09:18:48 svc.startd[5680]: Could not log for svc:/system/boot-archive:default: write(10) failed with I/O error.
Sep 29 09:18:49 svc.startd[5680]: Could not log for svc:/milestone/network:default: write(20) failed with I/O error.

what could be the reason for this ?

My first guess would be a disk full or corrupted.

I do not think thats the case as i have another zone on the same disk and the global zone running fine and the file system too has ample space on it,

A corrupted disk doesn't necessarily affect every zone.

What say

df -k
iostat -En
zpool status
dmesg | grep error

u want all these output from zone .. as i 'm unable to login to the zone. And fyi this zone is on an Ldom so all the disks are from zfs backend.

I didn't wrote that. Did you try these commands from the global zone ?