Savvio, Cheetah, and Constellation Enterprise Server & Storage (SCSI/FC/SAS/SATA) drives

[Deeredealer]

Looking at these two drives with a somewhat laymans mindset. Is a 2/4 disc/head with internal transfer of 85-142  vs. a 4/8 disc/head with internal transfer of 73 to 125 worth approx. $60.00 or 30% more.

Or maybe I should ask, what type of activity or consideration makes one buy the higher priced drive with what appears to be near same performance numbers.

thanks

[donvista · Accepted solution]

Your numbers are correct but used incorrectly. The 85/120Mb is the Internal Transfer Rate for the ST3146854LW. The 73/125MB is the Internal Formatted Transfer Rate. So if you want to compare the two you need to look at them in the same way.

ST3146854LW:

INTERNAL TRANSFER RATE (mbits/sec) 85 to 142

INTERNAL FORMATTED TRANSFER RATE (MB/sec) 58 to 96

ST3146855LW:

INTERNAL TRANSFER RATE (mbits/sec) 120 to 200

INTERNAL FORMATTED TRANSFER RATE (MB/sec) 73 to 125

So if you are curious about the price difference, then you can clearly tell that the ST3146855LW is going to out perform the ST3146854LW. 

[Deeredealer]

Thanks for setting me straight...sheeesh I hate being a moron.