the performance of SAS is not better than SCSI in FreeBSD, WHY?
ivoras at fer.hr
Thu Apr 12 06:18:14 UTC 2007
Tzu-Hua Wang wrote:
> Thank you for your response.
> Ther performance of your server is significantly better than mine.
Only in seek times, but this may be an artifact of RAID1. Do you use
2.5" or 3.5" disks?
> The SAS Chip of my HP ProLiant DL380 G5 is Smart HP Smart Array P400.
Mine was E200i.
> It uses the FreeBSD driver ciss0
> I think that there is only one difference between your HP server and
> I configure my SAS HD as RAID 0.
> Will this affect the performance?
RAID should be much faster than RAID1 for the kind of tests diskinfo
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