Best filesystem for large partitions

[Johnny Rosenberg]

2009/9/21 Knapp <magick.crow at gmail.com>:
> On Mon, Sep 21, 2009 at 9:58 PM, Preston Hagar <prestonh at gmail.com> wrote:
>> I have an Ubuntu Hardy server setup with a 9 TB Hardware (Areca) RAID
>> 6 array running Zoneminder (camera software).  For a while, I have
>> been using XFS as the filesystem for the 9 TB partition because of a
>> few random recommendations and outdated benchmarks [1].  Over the past
>> year or so running with this setup, however, I have had to wipe and
>> reformat the partition about 50 % of the time the machine power cycles
>> (sometimes from unexpected power outages, sometimes from planned
>> reboots).  It will come back up with an unmountable partition. I will
>> try to do an XFS repair/check which will usually either run the
>> computer out of memory (8 GB RAM) until it kernel panics, or leave the
>> file system in a questionable state (it will mount, but if I do
>> another xfs_check it immediately starts reporting errors).  I have
>> just been reformatting the partition (and losing the past 2 months of
>> security camera footage in the process).  Since we rarely have
>> incidents at the office where the security footage is ever even looked
>> at, it hasn't been a huge deal, but I am hoping to find something
>> better.
>>
>> Partitions > 8TB aren't officially supported for ext3 (you have to use
>> a -F force flag which makes me nervous).  ext4 isn't officially in
>> Hardy from what I know and I could switch to Jaunty if it would be
>> worth it, but will a "new" filesystem really be that much more stable
>> than something like JFS or XFS (although it is built on ext3 which is
>> what I normally use)?
>>
>> In doing a little Google searching I found the suggestion to use JFS
>> on top of LVM [2].  The short how-to, however, doesn't suggest a
>> reason why it is beneficial to put the JFS partition on a LVM virtual
>> partition.  I have switched to that for now, but I was wondering if
>> anyone had experience with large file systems.  I really don't need
>> killer speed, and would gladly trade speed for reliability.
>>
>> If you have any experience with partitions > 8 TB and if you have any
>> suggestions/tips on filesystems, extra tuning options, etc.  your help
>> would be greatly appreciated.
>>
>> Thanks,
>>
>> Preston
>
> 9.10 will be out soon and that might be worth upgrading too. Is it
> long term support?

No, I think you have to wait for 10.04 for long term support.

> I think it will have ext4 and grub2.

I think so too.

Johnny Rosenberg

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> Douglas E Knapp
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