HP Compaq Integrated Smart Array Controller - Manual (Page 89)

Compaq Array Configuration Utility 6-21
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3. Remove the failed drive and replace it with a drive that is of the same
capacity. For hot-plug drives, after you secure the drive in the bay, the
LEDs on the drive each light once in an alternating pattern to indicate
that the connection was successful. The online LED blinks, indicating
that the controller recognized the drive replacement and began the
recovery process.
4. Ensure that server power is on. If you shut down the server in Step 2,
power the server back up.
5. The Integrated Smart Array Controller firmware reconstructs the
information on the new drive based on information from the remaining
physical drives in the logical drive. While reconstructing the data on
hot-plug drives, the online indicator blinks. When drive rebuild is
complete, the online indicator stays lighted.
6. NetWare cannot detect a physical drive failure when using
hardware-based fault tolerance; NetWare determines that the data is still
valid and accessible during the rebuilding process. However, the driver
does know that a physical drive has failed. A message will be printed on
the console notifying the user a physical drive is in a degraded state.
CPQONLIN will also show the drive has failed.
Optimizing Array Controller Performance
for Novell Systems
To improve system performance, keep these tips in mind before creating
NetWare volumes or partitions:
■ If you selected a fault-tolerance option during configuration, such as
mirroring or distributed data guarding, do not select mirroring while
using INSTALL.NLM or NWCONFIG.NLM. The fault-tolerance
capabilities of the Integrated Smart Array Controller already provide
performance improvements and automatic data recovery features.
■ Novell recommends that you create volumes with a 64-KB block size
and that you use the Block Sub-Allocation feature of NetWare. The
large block size decreases the amount of RAM required to mount the
volume, and suballocation allows NetWare to allocate disk space more
efficiently.
■ Using linear memory provides the best drive performance in a NetWare
environment. When you use the Compaq System Configuration Utility
to configure your server with NetWare, the memory options default so
that linear memory is used. To verify the setting, run the Compaq
System Configuration Utility and view the memory settings. Make sure
that a linear option is selected under the Base Memory option.