3ware Escalade ATA RAID Controller Installation Guide
the array to be fully redundant, as it takes longer to initialize an array than it takes to write zeros to the array.
Caution: When running in initializing mode the array is not redundant. You cannot remove any drive.
For RAID 1 or 10 Arrays
RAID 1 and 10 arrays are not profiled when created, or initialized after booting into the OS. When the firmware receives the first ver- ify request, given that the array was never initialized, the initializa- tion will then begin. Any subsequent verify operations will then perform the verification of the array (check data consistency). An AEN will inform the user that the first verify is actually an initial- ization.
Specifying a Hot Spare
The Escalade ATA RAID Controller gives you the option to specify a hot spare from one of your Available Drives. If a hot spare is specified and the array degrades, an event notification will be gen- erated. The hot spare will dynamically replace the failed drive in an array without user intervention. Select a hot spare by navigating to an Available Drive. The Toggle Hot Spare verbiage at the bottom of the screen will be black if the drive can be used as a hot spare. Enter s to select the hot spare or to disable the hot spare if it is already enabled.
3ware Disk Array Configuration Utility
Note: Hot spare drives need to have the same or larger storage capacity than the RAID 1, RAID 5 or RAID 10 drives.
Changing an existing configuration
1Back up any disk arrays that contain data that you want to retain before the configuration change.
2Create new disk arrays following the instructions in the Deter- mining your configuration, Creating a disk array and Delet- ing a disk array sections. You may need to delete existing arrays to free up disks first.
3Boot, partition and format any new disk arrays or free disks.
4When you are finished configuring, restore from backup any data saved from previous disk arrays
Modifying a disk array
To modify an existing array you must first delete it then recreate it with the new drives. As with all disk array operations, there is no way to modify an existing array without overwriting data on the drives involved.
Deleting a disk array
To delete an array (see Figure 11) first select the array by navigat- ing to it and hitting Enter. An asterisk in the left most column indi- cates the array is selected.
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