LaCie FIREWIRE 800/400 user manual Setting the RAID Level, Example

LaCie Biggest Quadra	Setting Up the Biggest Quadra
User Manual	page 21

4.1. Setting the RAID Level

The LaCie Biggest Quadra is pre-configured at RAID level 5, but it may be re-configured. The RAID level is set using the RAID Level Switch Selectors on the rear panel of the LaCie Biggest Quadra.The RAID level selectors consist of two switches,with four possible switch position combina- tions: RAID 0, 0 + 1, 5 and 5 + Hot Spare.

CAUTION: The LaCie Biggest Quadra must be powered off to change the RAID level.

CAUTION: If there is data on the array, chang- ing the RAID level may lead to the loss of all of the data on the array.

Important Info: In the event that the RAID level does not correspond to both the disk settings and the RAID Level Switch Selectors, the LCD will display the following two alternating messages:

1.“RAID level” “Unmatched”

2.“Current: Rx” (i.e. the current RAID level set- tings of the installed disks)

“Original: Rx” (i.e. the RAID level settings on the RAID Level Switch Selectors)

Example:

The RAID Level Switch Selectors are posi- tioned to indicate a RAID 0 setting, but the disks were set earlier as a RAID 5 array, the LCD will display the following two alternating messages:

1.“RAID Level” “Unmatched”

2.“Current: R5”

“Original: R0”

In this situation, the array will not function. There are two options:

1.Shut down the LaCie Biggest Quadra and re-position the RAID Level Switch Selectors to the previous RAID setting, in this case, RAID 5.

2.Re-insert the four drives, and re-create the array as a RAID 0 array. If there is any data on the disks, it will be lost during the initializa- tion.