Optimal File System config for 2.5TB RAID5

[Matthew Seaman]

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Jeremy Chadwick wrote:
| On Wed, Oct 01, 2008 at 10:03:02AM +0100, Matthew Seaman wrote:
|> I've occasionally wondered why there isn't a simple device commonly available
|> which consists of a few hundred MB of battery backed (or otherwise persistent
|> in the face of power loss) RAM that can plug into a PCI slot and fulfil that
|> function generically for any disks in a machine.  Solid state hard drives are
|> getting there, but they're still too expensive and not really fast enough yet.
| 
| You mean this?
| 
| http://en.wikipedia.org/wiki/I-RAM
| 

Yeah -- pretty much that.  Although I'd prefer something that doesn't try
and pretend to be a hard drive -- after all, there's no reason to limit
the thing to the performance envelope of a SATA bus.

If you want solid state drives, nowadays there are devices based on compact
flash that fit in a normal 3.5" drive bay, speak SATA and don't need standby
power.  Latency is much better than a normal HDD, but probably not so good
as the I-RAM you pointed out.

	Cheers,

	Matthew

- -- 
Dr Matthew J Seaman MA, D.Phil.                       Flat 3
~                                                      7 Priory Courtyard
PGP: http://www.infracaninophile.co.uk/pgpkey         Ramsgate
~                                                      Kent, CT11 9PW, UK
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