The state of ext4 disck tools

[Jordon Bedwell]

On 08/07/2010 02:24 PM, Martin Webster wrote:
> On Sat, 2010-08-07 at 19:04 +0300, Dotan Cohen wrote:
>
>    
>> The last time that I had played with ext4 the Linux filesystem tools
>> were not well developed and did not support it. I cannot find any
>> information on any change in that situation, and I will not be testing
>> Ubuntu 10.10 for another month. Can anyone point me to docs that
>> mention an improvement in the situation.
>>      
> It would help if you stated when you last used ext4 and if you intend to
> migrate from ext3 or create new partitions. I've not had any issues with
> ext4 since 9.10; since Karmic it's been the default file system and is
> now part of the Linux kernel. The e2fsprogs utilities seem to work
> well.
>
> However, I read that there are some issues if you're migrating from
> earlier Ubuntu releases.
>
> You may like to check out the following:
> https://ext4.wiki.kernel.org/index.php/Main_Page,
> https://ext4.wiki.kernel.org/index.php/Ext4_Howto and
> http://kernelnewbies.org/Ext4.
>
>    
Personally, any servers I've built that were storing large amounts of 
data were on ext4 since 9.04 ~ if they were new ~ even if on Debian 
we've recently started moving to EXT4.  I didn't start migrating (or 
forcing migration so to say) till this last release since 9.04 was 
plagued with the resize bug ~ which I constantly do on our backup 
servers, and 9.10 was the first release to officially implement EXT4 so 
I let them finish working out migration kinks, but since the latest 
release, we haven't had any problems migrating all the servers to EXT4 
at all.  The reason I also moved to EXT4 was because of what I mentioned 
in another thread (along with somebody else) space issues, with EXT4 I 
can force my clients to pre-allocate backup space for me temporarily or 
constantly without having to write 0's to a file (which I never liked so 
I never did) ~ though I haven't implemented that plan yet since there 
are still servers to be migrated.  But as far as I'm concerned, EXT4 is 
where it's at because there are tons of improvements (aside from the 
most mentioned ~ the max volume size.)