Re: Adaptec 2810SA extremely fast or extremely slow?


"Fondazione Distrofici Onlus" <info@xxxxxxxx> wrote in message
news:1189011253.327390.256380@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Hi, sorry for bad english..
I've got a Tyan Thunder S2885 and an Adaptec 2810SA, configured as
follows:

- 5 Maxtor 300gb hard disks on adaptec card
- 1 Maxtor 160gb hard disk attached to the motherboard
- 3 RAID5 volumes (partitions) on adaptec card
- 1 partition 1TB
- 1 partition 160 GB
- 1 partition 5GB

After executing a benchmark test, the results surprised me...

All the volumes of the Adaptec card showed the same results:
____________________________________________________________
READ
- sequential read (large files):
- random read (large files):

- sequential read (small files):
- random read (small files):

____________________________________________________________
WRITE
- sequential write (large files):
- random write(large files):

- sequential write(small files):
- random write(small files):



Aren't these results strange for what is said to be an "ideal cost-
effective solution for applications where high levels of sustained
read and write performance are required, including video streaming,
web content, reference data and fixed content storage" ??

Thanks a lot,
Marco


Try DataMover For Windows (http://www.moojit.net/Networking/downloads.shtml)
it may provide better benchmark data. Random I/O is a purely subjective
implementation, DataMover only performs sequential I/O. It tests many
different transfer sizes between 512B and 4MB in half and full duplex
operation.

Moojit


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