Rebuild a Mirror to Increase Available inodes
Last night I had to rebuild the mirror on a web server to increase the available inodes as the default newfs set the level far too low. Here is the process I ended up using (total downtime ~1 minute).
# metadetach d9 d40 # metaclear d40 # newfs -i 8192 -f 4096 /dev/rdsk/c3t0d0s0 # metainit -f d42 1 1 c3t0d0s0 # metainit d40 -m d42 # mount /dev/md/dsk/d40 /mnt # cd /mnt # ufsdump of - /home | ufsrestore rf - # umount -f /mnt # /usr/local/apache2/bin/apachectl stop # umount -f /home # mount /dev/md/dsk/d40 /home # /etc/init.d/apache start # metadetach d9 d30 # metaclear d30 # metaclear d9 # metainit d41 1 1 c2t1d0s0 # metattach d40 d41
And here is the inode count before and after:
# df -F ufs -o i /dev/dsk/c3t0d0s0 Filesystem iused ifree %iused Mounted on /dev/dsk/c3t0d0s0 283249 143 100% # df -F ufs -o i /dev/dsk/c3t0d0s0 Filesystem iused ifree %iused Mounted on /dev/dsk/c3t0d0s0 157397 34841515 0%
