SATA Hardisk Vs SCSI Hardisk

[stalin]

I'm using photoshop it need more ram and faster harddisk. Can I know what the is maximum RPM for Sata Hardisk and SCSI Harddisk.

[pradeep_chauhan]

It depends on the throughput presently using a scsi 15K drive at ultra 320 you get a max throughput of 320MBps the rpm deals with seek and access times which in your case are not very imp. SATA 2 has a through put of 300MB max but practically gives much less

[stalin]

how to check the RPM of my SATA Hardisk. what speed does oridinary 7200 RPM hardisk give.

[pradeep_chauhan]

use hdtack

[stalin]

how is hdtack work anyway let me try it....

[enoonmai]

HDTach can be downloaded here.
It will test the sequential read, random access and interface burst speeds along with sequential write tests (commercial version only) and give you a benchmark of your HD. It supports all HDs from PATA/SATA/RAID/SCSI/USB and is considered a good benchmarking tool for a HD.

[stalin]

I got the HDtach and was talking with pradeep about the Sata Hardisk last night. When i used HDTach is showed me like average of 45 MB/s for IDE 80GB Segate Harddisk which is connect as secondary master and 48 MB/s 80GB SATA Segate Hardisk which in Primary Master. I dont find any difference. I heard that SATA give a data transfer of 150MB/s how do I do it. Here is my motherboard diagram.

[stalin]

Tell me the cost of SATA 2 Hardisk. Does my motherboard ASUS A8N SLI Deleuxe support SATA 2 Hardisk

[pradeep_chauhan]

First connect the sata to the nforce 4 chipset native sata port and not to the si3114 port. Next you will never get full 150Mbps ever. The best i get is as under

[root@pebble pradeep]# hdparm -t /dev/sda

/dev/sda:
Timing buffered disk reads: 164 MB in 3.02 seconds = 54.29 MB/sec

[root@pebble pradeep]#