is IDE HDD can reduce performance of SCSI HDD?

[Samir R. Ibrahim]

Hi all,

we have a DELL Server power edge 2600, dual CPU 2.8 , 2GB Ram, with 3 * 36GB
SCSI HDD with raid 5 and windows 2k advanced server as OS. When i want to
install new Seagate IDE HDD 160GB on the server for storing backup and other
static software they told me that this may reduce the performance of the HDD
and the system overall. is that right? and why?

Thanks in advance
Samir R. Ibrahim

 

[Guest]

Well, yes it will reduce system performance. The reason being is the Average Seek time. SCSI Drives are much faster in the sence of pulling information off the drive and storing it into Cache or RAM. If you were to compare a 160 GB 7200 RPM 8MB Cache Drive against a SCSI 73GB 15000 RPM 8MB Cache Drive, Take 3 160 GB 7200 RPM 8MB Cache Drives, and stripe them, that should come fairly close to a single SCSI drive. The IDE interface is much slower as well, if I were to have anything close SCSI performance, I would go with SATA. Two Raptor SATA drives at 10000 RPM 8 MB Cache and stripe it. That is the lowest performance I would get for a server - any kind of a server.