HP P3410A HP NetRAID Series User Guide - Page 100
Initializing Logical Drives
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Chapter 4 HP NetRAID Express Tools 9. Open the Advanced menu to set the remaining options. • Stripe Size: This parameter specifies the size of the segment written to each disk in a RAID logical drive. • Write Policy: This parameter specifies the cache write policy. You can set the write policy to Write-Back or Write-Through. • Read-Ahead: This parameter enables the SCSI Read-Ahead feature for the logical drive. You can set this parameter to Normal, Read-Ahead, or Adaptive. • Cache Policy: This parameter sets read cache operation during data transfers involving the current logical drive. (For definitions of the Write policy, Read policy, Cache policy, and their options, see the "Glossary.") Press Esc to exit the Advanced Menu. 10. When you are finished defining the current logical drive, highlight Accept and press Enter. If there is space remaining in the arrays, the next logical drive ready to be configured appears. Repeat Steps 6 to 9 to configure another logical drive. If the array space has been used up, a list of the existing logical drives appears. Press any key to continue and respond to the Save prompt. 11. Initialize the logical drives you have just configured. See "Initializing Logical Drives" in this chapter for more information. Initializing Logical Drives You must initialize each new logical drive you configure. The Initialize menu selection initializes the logical drives by writing zeros to the data fields and generating corresponding parity fields on drives with RAID levels 3, 5, 30, or 50. You can initialize the logical drives in two ways: • Batch Initialization: The Initialize option in the Tools Management menu lets you initialize up to eight logical drives simultaneously. • Individual Initialization: The Objects/Logical Drive action menu for an individual logical drive has an Initialize option. Batch Initialization To initialize logical drives by using the batch initialization procedure, following these steps: 94