HP D7171A - NetServer - LPr Installation Manual page 100

Hewlett-Packard NetRAID-4M Controller Installation Guide
fails before the container has been reconstructed, all data is
lost and the container is marked Dead. The actual usable
data capacity of the container is equal to one less than the
total number of partitions. (One partition's worth of
capacity is needed to hold the parity information.)
– RAID 0/1: Data is striped and mirrored on two or more
pairs of partitions. If one disk in a pair fails, data is
available. The actual data capacity of the container equals
half the total available partition space.
– RAID 50: Data is striped across a set of RAID 5 sets.
See the Command Line Interface Reference or the Flexible Array
Storage Tool User's Guide for more information about selecting a
RAID level.
2
Type in a label for the container and press Enter.
3
The CCU automatically displays the maximum size of the
container that can be created from the selected partitions. To
specify a different container size, type the size and select the
unit of measure (MB or GB) from the drop-down list. If the
aggregate size of the selected partitions is greater than the
container size you specify, the excess disk space is returned to
the freespace pool for use in other containers.
Note:
On a Windows 2000 system, a basic-disk
container is usable only if its size is greater than 16
MB; otherwise, the container type must be dynamic
disk. For information about modifying the container
properties of an existing container, see the Flexible
Array Storage Tool User's Guide or the Command Line
Interface Reference Guide.
4
Select the container stripe size. Stripe size is the amount of data
written to one partition in a Stripe, RAID 5, or RAID 0/1
container before the I/O data stream switches to the next
partition.
The allowable stripe sizes are 8, 16, 32 (the default), and
64 KBytes. The default block size gives the best overall
performance in most network server environments.
5
Specify if you want to enable read caching for the container.
B-4