Fog Creek Software
Discussion Board

Is parallel ATA RAID 0 worth it?

I have a 7200 RPM WD JB disk, and I'd like to buy an identical disk and set up a RAID Level 0 system.

I usually work with Visual Studio .NET and Delphi on an Athlon 2400+ with 1 GB of DDRAM, on a Gigabyte nForce 2 motherboard.

My question is: will I feel any difference?

How large is the difference?

I know that, theoretically, the disk transfer rate doubles, but I don't know if it's really so. I searched the net for benchmarks and couldn't find a convincing one.

Also, RAID level 0 is significantly unsafer than a single drive, but if there is a significant performance advantage, I will jump.

Is there a performance advantage I will feel? :)

Thank you!

Crane Michael
Wednesday, July 23, 2003

RAID write times are the same, but read times are significantly faster.

The RAID FAQ thread.
Thursday, July 24, 2003

I'm planning this exact same setup (RAID 0, two identical drives).  I'd also like to know what kind of improvement could be expected by such a configuration.

Almost Anonymous
Thursday, July 24, 2003

You can check out Anandtech and TomsHardware for information on different RAID setups.  One thing to be wary of is the possibility of failure is increased.  If you are running RAID 0 and one drive fails, all your data is lost.  As such, RAID 5 and RAID 1+0 are popular alternatives.  They require more drives though.

Thursday, July 24, 2003

If you use your workstation for coding, there is no way your harddrive is the bottleneck.  Use that money to add more memory.

RAID level 0 will add some fault tolerance.  I have no idea why Lou thinks if one drive fails they both fail.  If the manufacturer is claiming they are providing RAID level 0, then you should have some added fault tolerance.

Manuel M. Garcia
Thursday, July 24, 2003

Manuel, you're mistaken.  RAID 0 is striping.  There is no redundancy, meaning if one disk dies, the RAID is lost.  You may be thinking of RAID 1, which is mirroring.

RAID 0 has good performance characteristics.  For more information, check out [url=]Storage Review[/url]

Mike McNertney
Thursday, July 24, 2003

Oops, used the markup for other boards...

Mike McNertney
Thursday, July 24, 2003

*  Recent Topics

*  Fog Creek Home