Optimal Block Size for a RAID0 array?

Brent · Post by **Brent** » Fri Oct 31, 2003 12:49 am

Two WD 80GB HDD's in RAID0

whats the best block size? 64KB or is a different value better to use?

Thanks

deksecurity · Post by **deksecurity** » Fri Oct 31, 2003 1:33 am

for WD with 8mb Cache .some say 32 or 16 i have try 32 but it look to me 16 are faster

Set · Post by **Set** » Fri Oct 31, 2003 4:29 am

I'm using 32kb Right now Been thinking about comparing Benches between the 32kb and 64kb

16KB seems low for my Gamming Needs

Post by **YeOldeStonecat** » Fri Oct 31, 2003 6:19 am

Originally posted by Brent
Two WD 80GB HDD's in RAID0

whats the best block size?

First you have to answer "Better for what kind of use?" Different sizes work better for different roles/type of use.

Cypher · Post by **Cypher** » Fri Oct 31, 2003 10:37 am

16K seems a good ballance between read/write for me. I mostly game on it if that helps you out any.

gieslel · Post by **gieslel** » Fri Oct 31, 2003 10:48 am

16k works great for me.

Brent · Post by **Brent** » Fri Oct 31, 2003 1:06 pm

Thanks guys, all my applications and games will be run from that drive.

In the past when the RAID0 array was my primary drive I just used the default 64k

I'm gonna try 16k now on it with its new role and see how it performs.

Brk · Post by **Brk** » Fri Oct 31, 2003 1:36 pm

On regular IDE drives, either 16k or 32k seems to be the consensus for the best constant performance for short bursts, with the larger sizes being better suited for more intensive transfers of large files (i.e., video editing).

On SATA drives, though, the stripe size isn't as relevant. This guy did a pretty thorough test of stripes using SATA drives and it would appear that it isn't as important to find the "perfect" size as it is with standard IDE drives. Just FYI:

SATA Stripe Comparison

SG Broadband Community

Optimal Block Size for a RAID0 array?

Optimal Block Size for a RAID0 array?

Re: Optimal Block Size for a RAID0 array?