From: kristianto.setiawan@sun.co.id
Date: Sun Feb 08 2004 - 20:30:45 EST
Thaks to :
Sven Heydecke
Grzegorz Bakalarski
Przemol
Summary :
---------
As the 3510FC and the original-branded Dothill Sannet II FC are
using the Infortrend Eon2510 controllers, stripe size with the last
recent firmware releases should be as following:
RAID 0, optimization for sequential I/O: 128k
RAID 0, optimization for random I/O: 32k
RAID 3, optimization for sequential I/O: 16k
RAID 3, optimization for random I/O: 4k
RAID 5, optimization for sequential I/O: 128k
RAID 5, optimization for random I/O: 32k
When I do remember right, the optimization for random I/O will
only work
for logical drives (RAID sets oder LUNs in speech of others)
with size smaller than 512 GB - this is due to limitations in
Infortrends internal organization of RAID controller's architecture
(as well as the limitation to logical drives of 2 TB in size)
This limitation is solved and a new functions like individual
stripe sizes on a per logical drive basis are implemented with
firmware 3.31 and above. Since at least Sun's (and Dothill's?)
notation on f/w release versions is sth. different, there's maybe a
chance that the 3.31 release is already available from Sun ...
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