HP P3410A HP NetRAID Series User Guide - Page 59

Chapter 3 HP NetRAID Config Logical Drive Choose this option to perform the listed actions. You must first select the logical drive on which you want to perform these options. • Initialize: After configuration, a logical drive must be initialized before it can be used. This option 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. • Check Consistency: Ensures that parity or mirroring is correct for the selected drives. RAID levels 3, 5, 30, and 50 use parity data blocks to provide redundancy; parity is checked between these parity data blocks and the selected drives. RAID levels 1 and 10 use duplicate data drives (mirroring); the duplicate data is verified. If Check Consistency finds any errors, it fixes the inconsistencies. This selection both identifies problems and takes corrective action. Check Consistency should be run if the system shuts down irregularly, such as if the system hangs or suffers a power failure. It is also recommended that you run consistency checks every two to four weeks to ensure that bad blocks on the disk drive are mapped out. NOTE Check Consistency might fail if the firmware could not complete parity and data writes due to a power-failure or a system hang, or if the logical drive degraded or failed when a physical drive went offline. • View Performance: Displays the read/write performance of the selected adapter. • Properties: Displays the following properties of the selected logical drive: RAID level, Size of the logical drive, Stripe Size, Write Policy, Read Policy, Cache Policy, Virtual Sizing, Number of Stripes, and State. 53