WD5000AAKS vs WD5000KS

I believe the AAKS is using the high density platters announced by WD in this release (uses 3 platters in the 500)

http://www.wdc.com/en/company/rele [...] A6E93CCAA}

I looks like they are puting the AA in the model to indicate the 160 gig platter. Should be quieter and may have a slight power reduction over the non AA version. Also needs fewer heads so it should be a better drive

I just bought an external SATA array setup... I have one of each of these drives. Was wondering if they could be used in the same RAID array?

Thanks!

Not sure how the question was answered unless I missed something.

The RAID setup I bought had no drives. I already have a WD5000KS and a WD5000AAKS. I also have a HD S72505 that I could use as well... just not sure if mixing disks (not having identical models with same capacity) could cause any issues.

Thanks for the tip on the Samsung drives!

Reduced from what? Performance certainly won't be reduced if compared to a single drive... but should match the equivlant of two RAID drives matching the slower drives spec, but that should be minimal compared to the RAID boost.

5ms access time is a problem?

Depends on the application, the Intel X25-M has a access time of 1ms so compared to that yeah it's long.