ext3 tuning

1) Directory indexing

# tune2fs -O dir_index /dev/hdXY
# e2fsck -D /dev/hdXY

2) Journal mode

# tune2fs -O has_journal -o journal_data /dev/hdXY

3) Mount options

# mount -o nodiratime,noatime,data=journal /dev/hdXY /your_mount_point

Referências:

Advanced filesystem implementor's guide, Part 8

Ext3 tuning