[sf-lug] filesystem for a 3TB external USB drive
rick at linuxmafia.com
Tue Jan 3 14:14:13 PST 2012
Quoting Josh Greenland (joshuag1 at mindspring.com):
> I don't know why EXT2 has even been mentioned as a possibility.
If I recall correctly the context in which a couple of other posters
mentioned it, it was always either 'ext2/ext3' or in a context making
likely that the writer meant 'the filesystem that is variously known as
ext2 or ext3 depending on whether you use it with or without a journal'.
> Unlike maybe just about all the other file systems people are
> talking about in this thread, it's not a journaled file system,
> which I understand to mean that it would be a lot more likely to be
> corrupted if it's shut down in a bad way, for instance power is cut
> off before dismounting. I wouldn't even consider it.
Then, there are use cases you probably haven't yet considered.
# /etc/fstab: static file system information.
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc defaults 0 0
/dev/sda7 / ext3 defaults,errors=remount-ro 0 1
/dev/sda1 /boot ext2 defaults 0 2
/dev/md3 /home ext3 defaults 0 2
/dev/sda8 /recovery ext3 defaults 0 2
/dev/sda9 /usr ext2 nodev,ro 0 2
/dev/md4 /usr/local ext3 defaults 0 2
/dev/sda6 /var ext2 noatime,nodev,nosuid 0 2
/dev/md1 /var/lib ext3 nodev 0 2
/dev/md2 /var/spool ext3 defaults 0 2
/dev/md0 /var/www ext3 nodev,nosuid 0 2
/dev/sda5 none swap sw 0 0
/dev/sdb8 none swap sw 0 0
/dev/sdc8 none swap sw 0 0
/dev/hda /media/cdrom0 udf,iso9660 user,noauto 0 0
On this server, the /boot, and /usr filesystems are normally
mounted read-only. /var is mounted read-write but, by the inherent
nature of its contents, is (other than the three carveouts listed lower)
dispensible. As with the noatime mount option on the /var mount, I get
a premium of significantly increased mass-storage performance: the ext2
filesystem is an extremely fast one.
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