This is the type of information I was looking for. No seems to explain this well.
Also, on the same topic. For a very large filesystem ie, 3TB, should I consider anything special, something like -O dir_index? I am looking for peek performance.
TIA
On Thu, Jun 19, 2008 at 10:08 PM, Theodore Tso <tytso@xxxxxxx> wrote:
On Thu, Jun 19, 2008 at 09:17:45PM -0400, Mag Gam wrote:It doesn't matter whethre it is hardware or software raid. What
> What happens if you use a hardware raid, should the stride option be
> considered? It seems you are referring to software raid, correct?
matters is the *geometry* of the RAID array. i.e., how many
filesystem blocks are in an individual disk's stripe, and how many
disks are in use (minus how many parity disks are in use). This
information may be somewhat more hidden in a hardware raid array, but
it is possible to extract this information, and most hardware raid
arrays will allow you to configure these parameters as well, to
varying degrees of flexibility.
- Ted
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