Compaq 124708-001 - ProLiant Cluster - 1850 Software User's Manual page 45

3-14 Compaq ProLiant CL1850 Software User Guide
Figure 3-10. Controller Properties window, General tab
The General tab has the following properties.
System Name—Shows the system name as it is known by the operating
system.
Failover Mode—Shows the failover mode selected: high performance
(active/active), high availability (active/passive), or stand-alone (single
controller). High availability is only available with two controllers.
Read-ahead cache limit—Enter the desired read-ahead limit (0-16). If
you enter 0, the read-ahead is disabled. Each increment equals 32 blocks
of data that are read ahead in the cache. For example, 2 would equal
64 blocks read ahead.
Controller mode—Shows the controller mode, which is active or
unavailable.
Rebuild rate—Enter the desired rebuild rate, which ranges from
1 to 100. The controller rebuilds while it handles I/O activity. A rate
below 50 emphasizes I/O response over the RAID rebuild. A rate above
50 puts a higher priority on the RAID rebuild at the expense of I/O
activity.