Adaptec 2810SA extremely fast or extremely slow?
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:
__________________________________________________ __________
READING
- sequential reading (large files): 133 MB/s
- random reading (large files): 103 MB/s
- sequential reading (small files): 59 MB/s
- random reading (small files): 54 MB/s
__________________________________________________ __________
WRITING
- sequential writing (large files): 10 MB/s
- random writing (large files): 8 MB/s
- sequential writing (small files): 7 MB/s
- random writing (small files): 8 MB/s
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" ??
What can I do?? I am writing an application that does video
acquisition in real time...
Thanks a lot,
Marco
|