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Re: i-ram vs. tmpfs (was: Re: Mail clustering)

On 200704101607, Michael Loftis wrote:
> RAID-5 is extremely slow at writes.  Also can't forget about seeks. 
> Depending on your access patterns an external journal can be a definite 
> win, sometimes it's always a win with certain access patterns.  EXT3 also 
> by default only journals metadata, not data, which means the write rate to 
> the journal is relatively low.

Allow me to correct:

Ext3 journals both data and metadata. Xfs only journals metadata. But
that might be a relevant issue here, too, as many seem to prefer xfs on
their mail servers.

Regards, skrewz.

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