hi ya
chunk size does NOT matter for raid5...
if your disk was partitioned as... 2K bytes/inode...
chunksize of 32 will allow you to write 64K of data
in one "chunk" to disks
chunksize of 128 will allow you to write 256K of data
in one "chunk" to disks...
or so goes the idea...
whether your disks can sustain that or not is another issue
it also makes a difference if you used a inode size of 1K or 2K or 4k
during disk partitioning
- lots of little files or few huge/gigantic files ??
#
# stuff on chunksize
#
http://www.1U-Raid5.net/ChunkStride/chunksize.txt
c ya
alvin
On Tue, 2 Apr 2002, axacheng wrote:
> Hello List :
>
> I have a question about RAID "chunk size"
>
> some sample write:
>
> chunk-size 32 or chunk-size 128 or chunk-size 4
> @_@
>
> it means, chunk-size=4 access performance is MORE THAN chunk-size=128 ????
> or
> chunk-size=128 access performace is MORE THAN chunk-size=4????
>
> Whats different between chunk-size=128 and chunk-size=4????
>
> anyone know that???
>
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