On Jan 11, 2011, at 10:59 AM, Joshua Baker-LePain wrote:
> On Tue, 11 Jan 2011 at 1:49pm, Digimer wrote
>
>> On 01/11/2011 01:47 PM, aurfalien@xxxxxxxxx wrote:
>>> Hi all,
>>>
>>> I've a 30TB hardware based RAID array.
>>>
>>> Wondering what you all thought of using ext4 over XFS.
>>>
>>> I've been a big XFS fan for years as I'm an Irix transplant but
>>> would
>>> like your opinions.
>>>
>>> This 30TB drive will be an NFS exported asset for my users housing
>>> home dirs and other frequently accessed files.
>>>
>>
>> You will need XFS for a single partition that large. You won't be
>> able
>> to make such a large ext4 partition, I don't think.
>
> This is correct. While ext4 theoretically supports volumes (much)
> larger
> than 16TB, the developers don't think it's production ready yet and
> the
> userspace tools don't support it yet.
>
> So, short answer -- XFS is the only way to go.
>
My RAID has a strip size of of 32KB and a block size of 512bytes.
I've usually just done blind XFS formats but would like to tune it for
smaller files. Of course big/small is relative but in my env, small
means sub 300MB or so.
What would your XFS tuning params be for such an env?
- aurf
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