HP Compaq Integrated Smart Array Controller - Manual (Page 81)

Compaq Array Configuration Utility 6-13
Compaq Confidential – Need to Know Required
Writer: CDresden Project: Compaq Integrated Smart Array Controller User Guide Comments:
Part Number: 153236-001 File Name: g-ch6 Compaq Array Configuration Utility.doc Last Saved On: 8/27/99 11:25 AM
The purple (left) band on the scale indicates the fraction of the total that is
available for data. The striped red (right) band indicates the fraction required
for storing the parity or mirrored information depending on the fault-tolerance
method used. The red (right) band is only needed for RAID 1, RAID 0+1, or
RAID 5.
This area displays the maximum-sized logical drive that can be created for
your drive array. You can reduce this amount if you want to create more than
one logical drive on the array. To reduce the size, type the number in or drag
the pointer to the left. Fine-tune the size with the arrow buttons to the left of
the scale.
Array Accelerator Frame
The Integrated Smart Array Controller offers an 8-MB read cache option. The
Array Accelerator frame allows you to disable this function.
Figure 6-11. Array Accelerator frame
Stripe Size
Stripe size refers to the amount of data stored on each physical drive in one
stripe of a logical drive. Each RAID level has a default value plus a range of
supported sizes. The default values shown in the following table provide
optimum performance for that RAID level in many applications. However,
your application may benefit from setting the stripe size to a different value.
To select a stripe size other than the default, select the down arrow next to the
current stripe size and select from the sizes available.