about ext3 and inodes

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about ext3 and inodes

by Luis Miguel R. :: Rate this Message:

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Hi all, next week I will configure a new server with dirvish, it
will have a raid 1 with 750 sata disks and a 3ware 9650se, I will use
ext3 because is the FS I am most familiarized with.

Is recomended to increase the default inode number?, the
server will be used by a graphics design company to store .jpg and
.psd files.

Mkfs.ext3 create by default a 5% reserved area, I plan to reduce this to
1% (7gb), can this have any adverse effect?

By default ext3 partitions are mounted with "ordered" data mode, but
partitions can be mounted with "journal" data mode (journaling
everything), does anyone have experience with this?


Regards.


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Re: about ext3 and inodes

by Bernd Haug :: Rate this Message:

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Luis Miguel R. wrote:
> Is recomended to increase the default inode number?, the
> server will be used by a graphics design company to store .jpg and
> .psd files.

Do a df -i and a normal df on the current disk dirvish uses - assuming
it's only or at least totally predominantly used for dirvish for
realistic results.

You should be able to deduce whether you're gonna run out of space or
inodes first from your current usage patterns (which probably won't
change just 'cause there's a new server, right?).

> Mkfs.ext3 create by default a 5% reserved area, I plan to reduce this to
> 1% (7gb), can this have any adverse effect?

One one hand, if it's a pure data FS without areas that can mess up the
OS if they underrun (like /var), you can set it to 0; OTOH, rsync runs
as root for dirvish, so the limits don't apply in any case. In other
words: neither should matter in your case. Unless I forgot something,
and the the list will correct me. :)

Yours, Bernd
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