roland.g said:
on a related subject:
anyone know when loading OS X on an external firewire as a boot, what will give better performance:
the external firewire on a 7200RPM Western Digital with an 8MB Cache, standard ATA drive vs. the internal 5400 RPM Mac Mini SATA drive.
Thanx.
I compared read and write speeds of the 2.5inch seagate drive (5400rpm) in my mac mini to the read/write speeds of the 3.5inch 7200 rpm drive in the iMac. Happily, the figures agree with the specs that seagate themselves publish.
When my mini is out of warranty, I'm going to replace the 80GB 5400rpm drive with a 7200RPM 100GB drive. These newer 2.5inch drives are pretty much the same speed as the larger drives, plus, they have the advantage of NCQ (Native Command Queuing) and the SATA 1.5Gb/s transfer rate.
Summary: a like-for-like modern drive (that supports NCQ) will be quicker internally over SATA than plugged via *any* firewire connection.
I'm keen to try a RAID-1 set using SATA and Firewire tho.. my writes will be at the speed of the slowest drive (the firewire), but my reads should fly.