San Jose, CA
reply to not quite right
Re: Firewire 800 Disk Test
said by not quite right:I know, me either. Makes you wonder doesn't it?
I couldn't find any read/write speeds listed for that drive @ WD's website.
Anyway, let's assume its a green drive with raw read/write speeds of about 100-110MB/sec (the WD Caviar Green 2T disk comes in at that.)
Add 50% overhead for encryption, and hey, presto - you are right in the ballpark for your measured performance. If you want to get better speeds, you'll need to drop the encryption.
FW800 limits you to 80MB/sec read/write (less overhead, but let's forget that for now)
WD Green 2TB drive itself limits raw speed to 100-110MB/sec r/w
So, fastest you could go is 80MB/sec, FW is the limit.
On top of that, encryption sucks up to 50% of your write speed, less for read, and... um... you get what you're seeing.
Looks plausible to me.
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