Re: Large single raid and XFS or two small ones and EXT3?
From: Christian Pedaschus <hidden>
Date: 2006-06-23 16:41:35
Also in:
linux-fsdevel
Andreas Dilger wrote:
On Jun 23, 2006 17:01 +0300, Al Boldi wrote:quoted
Chris Allen wrote:quoted
Francois Barre wrote:quoted
2006/6/23, PFC [off-list ref]:quoted
- ext3 is slow if you have many files in one directory, but has more mature tools (resize, recovery etc)Please use "mke2fs -O dir_index" or "tune2fs -O dir_index" when testing ext3 performance for many-files-in-dir. This is now the default in e2fsprogs-1.39 and later.
for ext3 use (on unmounted disks):
tune2fs -O has_journal -o journal_data /dev/{disk}
tune2fs -O dir_index /dev/{disk}
if data is on the drive, you need to run a fsck afterwards and it uses a
good bit of ram, but it makes ext3 a good bit faster.
and my main points for using ext3 is still: "it's a very mature fs,
nobody will tell you such horrible storys about data-lossage with ext3
than with any other filesystem."
and there are undelete tools for ext3.
so if you're for data-integrity (i guess you are, else you would not use
raid, or? ;) ), use ext3 and if you need the last single kb/s get a
faster drive or use lots of them with a good raid-combo and/or use a
separate disk for the journal (man 8 tune2fs)
my 0.5 cents,
greets chris
ps. but you know, filesystem choosage is not pure science, it's
half-religion :D
Cheers, Andreas -- Andreas Dilger Principal Software Engineer Cluster File Systems, Inc. - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html