When I was trying to mirror in my v880 server after OS up gradation from 8 to 10
metadb -afc 3 /dev/dsk/c1t1d0s7
I got an error
metadb: Segmentation Fault
Segmentation Fault (core dumped)
Then I logged a case to Oracle/sun team they suggest
"Please could you try
metadb -ac 3 /dev/dsk/c1t1d0s7
if the above also fails please run:

truss -eflda -rall -wall -vall -u libmeta:: -o /var/tmp/truss.metadb metadb-ac 3 /dev/dsk/c1t1d0s7
"
After this I got below error "truss: cannot find program: metadb-ac
"
Then We had R & D at our own and find out there is an issue with services
Please check
# metaset
Set name = HostXXXXX, Set number = 1

Host Owner
#svcs |more |grep -i meta
online Apr_04 svc:/system/metainit:default
online 20:19:11 svc:/network/rpc/meta:default

All we need to keep them online thats all.