stride

[Mag Gam]

Ted,

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 at mit.edu> wrote:

> On Thu, Jun 19, 2008 at 09:17:45PM -0400, Mag Gam wrote:
> > What happens if you use a hardware raid, should the stride option be
> > considered? It seems you are referring to software raid, correct?
>
> It doesn't matter whethre it is hardware or software raid.  What
> 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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