HP NetRAID 1Si Controller - Manual (Page 59)

Chapter 3 HP NetRAID Config
53
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.