HP NetRAID 1 Controller - Manual (Page 37)

33
Check Consistency
Choose the Check Consistency option to verify the redundancy data in logical drives using RAID
levels 1, 3, 5, 10, 30, or 50. When you choose Check Consistency, the parameters of the existing
logical drives on the current adapter appear. The logical drives are listed by number.
Press the arrow keys to highlight the desired logical drives. Press the spacebar to select or deselect a
drive for consistency checking. Press F2 to select or deselect all the logical drives.
Press F10 to begin the consistency check. A progress indicator for each selected logical drive
appears.
When the consistency check is finished, press any key to clear the progress display and press Esc to
return to the Management Menu.
Advanced Menu Check consistency should be run if the system shuts down irregularly, e.g., if the
system hangs or suffers a power failure. It is also recommended to run consistency checks every 2-4
weeks to ensure that bad blocks on the disk drive are mapped out. (See the “Check Consistency
Feature.”) Check consistency will always remedy correctable inconsistencies. Check consistency will
only fail because firmware could not complete parity and data writes due to a power-failure or a
system hang, or because the logical drive degraded or failed due to the physical drives going offline.
Advanced Menu
Reconstruct Logical Drive
Choose this option before you add or remove a physical drive, or change a RAID Level.
C. Configuring Arrays and Logical Drives
Each configuration method requires a different level of user input. However, the general flow of
operations for array and logical drive configuration is outlined below.
1. Choose a configuration method.
2. Designate hot spares (optional).
Configuration Methods
HP NetRAID Config provides the following configuration methods:
•
Automatic Configuration: In Auto Configuration, the HP NetRAID and HP NetRAID-1
adapters examines the physical drives connected to it and automatically configures them into
arrays and logical drives. If there are already logical drives configured when you select Auto
Configuration, their configuration information is not disturbed.
•
Easy Configuration: In Easy Configuration, each physical array you create is associated
with exactly one logical drive, and you can modify the following parameters: RAID level,
Stripe size, Cache write policy, Read policy, and I/O policy. If there are already logical
drives configured when you select Easy Configuration, their configuration information is not
disturbed.
•
New Configuration: In New Configuration, you can modify the following logical drive
parameters: RAID level, Stripe size, Cache write policy, Read policy, I/O Policy, logical
drive size, and Spanning of arrays. If you select New Configuration, the existing
configuration information on the selected adapter is destroyed when the new configuration is
saved.