Promise Technology 150TX2 Manual Do Utilizador

Chapter 2: Getting Started 

 

 

23 

 

With some models of hard drives, if the Master hard drive fails, it 
may cause the Slave hard drive to be unrecognized by the 
computer's operating system. Where a RAID 1 (Mirroring) array 
exists on the Master/Slave pair, this condition may cause the 
operating system to freeze. 
Do NOT create a RAID 1 (Mirroring) array with two Parallel ATA 
hard drives using the Master/Slave arrangement on Channel 3 
(the Parallel ATA port). 
You can create a RAID 1 (Mirroring) array by combining hard 
drives on: 
• 

Channels 1 and 2 (Serial ATA only) 

• 

Channels 1 and 3 (one Serial, one Parallel) 

• 

Channels 2 and 3 (one Serial, one Parallel) 

 

If a third drive is attached and is not assigned to a mirrored two-drive disk array 
(one optimized for Security), it will be recognized as a spare drive. Such a drive 
is immediately used as a standby replacement. It is automatically added to an 
array once a disk member of the array has been detected as failed.  

To restore fault tolerance as quickly as possible, FastTrak S150 TX2plus begins 
to perform an automatic data rebuild on the spare drive in the background 
without the need to restart the system.  

At a later time, the failed drive can be physically removed from the FastTrak 
S150 TX2plus card and an extra drive added in its place to function as the spare 
drive.  

 

The hot spare drive must have a capacity that is equal to or 
larger than the smallest array member.