I was having some I/O errors in filesystems below /var

root@solaris:~ # df -h
Filesystem size used avail capacity Mounted on
/dev/md/dsk/d0 7.7G 4.9G 2.7G 64% /
/devices 0K 0K 0K 0% /devices
ctfs 0K 0K 0K 0% /system/contract
proc 0K 0K 0K 0% /proc
mnttab 0K 0K 0K 0% /etc/mnttab
swap 39G 1.2M 39G 1% /etc/svc/volatile
objfs 0K 0K 0K 0% /system/object
/platform/SUNW,Sun-Fire-T200/lib/libc_psr/libc_psr_hwcap1.so.1
7.7G 4.9G 2.7G 64% /platform/sun4v/lib/libc_psr.so.1
/platform/SUNW,Sun-Fire-T200/lib/sparcv9/libc_psr/libc_psr_hwcap1.so.1
7.7G 4.9G 2.7G 64% /platform/sun4v/lib/sparcv9/libc_psr.so.1
fd 0K 0K 0K 0% /dev/fd
/dev/md/dsk/d50 15G 2.2G 13G 15% /var
swap 2.0G 2.2M 2.0G 1% /tmp
df: cannot statvfs /var/run: I/O error
/dev/md/dsk/d140 11G 8.9G 2.0G 82% /sites
/dev/md/dsk/d60 7.7G 2.7G 4.9G 37% /opt
/dev/md/dsk/d90 963M 1.0M 904M 1% /logs
/dev/md/dsk/d85 963M 3.3M 902M 1% /home
/dev/md/dsk/d110 963M 730M 175M 81% /u01
df: cannot statvfs /var/mqm: I/O error
df: cannot statvfs /var/crash: I/O error

I was able to enter the directory /var but I was not able to list anything.

root@solaris:~ # cd /var
cd: error retrieving current directory: getcwd: cannot access parent directories: I/O error

root@solaris:/var # ls -al
.: I/O error

On the console I was seeing the error from makeutx

Jul 22 21:53:41 svc.startd[9669]: makeutx failed, retrying: I/O error
Jul 22 21:53:42 svc.startd[9669]: makeutx failed, retrying: No such file or directory

I decided to umount the filesystem and mount it again and my error disappeared

root@solaris:/root # umount /var
root@solaris:/root # df -h /var
Filesystem size used avail capacity Mounted on
/dev/md/dsk/d0 7.7G 4.9G 2.7G 64% /

root@solaris:/root # mount /var
root@solaris:/root # df -h /var
Filesystem size used avail capacity Mounted on
/dev/md/dsk/d50 15G 2.2G 13G 15% /var

• Solaris