Highpoint RocketRAID 1740 User's Guide download pdf (Page 32)

RocketRAID 174x Driver and Software Installation

Adding Disks to an Array

When an array member in a redundant array fails, the array will be listed as broken. A

broken array will be automatically rebuilt using available-spare disks. However, if you

have no spare disks configured, you can still rebuild by manually adding an Available

Disk to the array. To add a disk to a broken array:

1) Select menu “Manage - Array”.

2) Click the Maintenance button.

3) Click the Add Disk button.

4) If the disk is successfully added to the array, rebuild process will start

automatically.

Note: If the system utilizes hot-swap capable enclosures, you can add new physical

disks to the RocketRAID card in order to rebuild or modify an existing array, using the

“Rescan” feature.

Verifying an Array

For a RAID 1 or RAID1/0 array, verify process compares the data of one mirror pair

with the other. For RAID 5, verify process calculates RAID5 parity and compares it to

the parity data on the array. Verification checks each sector on a drive. Periodic

verification of an array allows the disk drive firmware to take corrective actions on

problem areas on the disk, minimizing the occurrence of uncorrectable read and write

errors.

To verify an array:

1) Select menu “Manage | Array”.

2) Click the Maintenance button.

3) Click the Verify button to start the verify process.

Rebuilding an Array

When a redundant array enters a critical/broken state, a rebuild is necessary to

restore the array’s redundancy (security). The rebuild process for an array generally

starts automatically. If you have aborted a rebuild process, you can start it manually.

To rebuild an array:

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Highpoint RocketRAID 1740 User's Guide Page 32