Step 3: Choosing The Physical Drives - Promise Technology SuperTrak EX4650 Guia De Inicio Rapido

Step 3: Choosing the Physical Drives

The SuperTrak EX Controller card supports SAS and 1.5-Gb/s or 3.0-Gb/s SATA
physical drives. For optimal performance, install physical drives of the same
model and capacity. The drives' matched performance allows the logical drive to
function better as a single logical drive.
Level
RAID 0
RAID 1
RAID 1E
RAID 5
* Requires SAS expansion
** Requires an even number of drives
The table above shows the number of drives required for each RAID level.
Number of Drives
1 or more
2 only
3 or more
3 to 16*
Step 3: Choosing the Physical Drives
Level
RAID 6
RAID 10
RAID 50
RAID 60
9
Number of Drives
4 to 16*
4 or more**
6 or more
8 or more