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 ?