Drives: 5,400 7,200

[Dkay]

IS the RPM really that important looking for a SCSI HD.

Or is Cache more important.
Thanks,
Dave

[Mntsnow]

Actually BOTH effect the drives performance greatly. I will suggest that you make sure you have good cooling when you go to 7200 or 10,000 rpm scsi drives as they produce a ton of heat!

Mntsnow

[Dkay]

So is a 50 pin scsi gonna be faster then a ultra 66 drive of the same type?

[seti]

I would re-think your desision to go with SCSI for these reasons. If you're talking about 5400rpm, you're obviously talking about an entry level SCSI solution. SCSI, even entry level, is **** expensive....for the same or less dough you can actully get high end ATA drives that out perform those SCSI drives...and come with a lot more room too.

I would recomend going to www.storagereview.com (http://www.storagereview.com) and going into the database. (sorry, can't post link directly to it). There you can match up drives and see how they compare.

They had an artical somewhere on there about the effect of cache, and as I remeber it was minimal. But like I said, I can't find it, and it was awhile ago, so current drives may use the larger cashe more effectivly.


[This message has been edited by seti (edited 12-24-1999).]

[Dkay]

I am talking about a 7200 RPM 50 Pin scsi.

versus ultra ata 66 7200.

same size buffers.

price non-issue.

which is faster?

Thanks,
Dave

[seti]

It's really not a simple question Dkay.
http://www.storagereview.com/welcome.pl/http://www.storagereview.com/guide/guide _ide_scsi.html (http://www.storagereview.com/welcome.pl/http://www.storagereview.com/guide/guide_ide_scsi.html)

Educate yourself, and determine you needs.

I know 50pin is really old. It's "a" cable which was the original if I'm not mistaken. In this case a brand new 7200rpm ata drive should kill it.

Now that I think I might be wrong on what kind of interface "50 pin" is. Because I don't think that you'd be able to find a 7200rpm drive useing that. All the SCSI drives use UW or U2W which is 68 pin. Ha, ok, that was me thinking out loud. In conclusion....any 50 pin SCSI drive will be out dated and slower than the ATA.

[This message has been edited by seti (edited 12-24-1999).]

[BBA]

I would say that for maximum performance...10K RPM U2W SCSI with GMR heads, 7ms access and 80M/sec can't be beat!

****, For normal use...ATA performs as well as SCSI given an identical drive...GMR and RPM makes all the difference.

Case in point: I have an old 3.2G SCSI2 7200RPM Quantum drive. I thought it was fast before, but when I got my new 22GXP ATA66 drives with GMR and 2M cache, the SCSI 7200 RPM just couldn't keep up.

Now the SCSI sits in my desk drawer wondering if it will ever breath fresh air again!

[Dkay]

Thanks looks like its time for a 2MB buffer
7200 RPM Ultra 66 Drive.

[codybear]

BBA...want to sell that drive setting in your desk??