Setting Merge Group Numbers; Completing The Failover Environment Installation - IBM Netfinity ServeRAID-3H Installation And User Manual

Note: Hot-spare drives are not supported in a failover environment except within a logical drive with a
RAID level-5E.
6. Select a RAID level for each of the logical drives from the RAID pull-down menu in the Main Panel.
Note: If you have four or more Ready drives in an array, the recommended RAID level is RAID
level-5E.
7. Create only one logical drive for each array.
Notes:
a. Typically, the first logical drive defined on the first ServeRAID controller found by system BIOS
during startup will be your startup (boot) drive.
b. You cannot increase the free space in arrays or expand the size of a logical drive in a
fault-tolerant pair.
8. If you have created multiple arrays in step 4 on page 44, click on another array in the Main Tree and
go back to step 6 to configure it. After configuring all of your arrays, continue with step 9.
9. Click Next.
10. Review the information that appears on the Configuration summary screen.
Note: To change the configuration, click Modify arrays or Modify logical drives.
11. Click Apply to accept and save the configuration.

Setting merge group numbers

Note: The ServeRAID Manager program will open in either the Configuration mode screen (Figure 14 on
page 42) or the Information mode screen (Figure 13 on page 41). If it opens in the Information
mode screen, go to step 1. If it opens in the Configuration mode screen, first click Cancel to get
to the Information mode screen, then go to step 1.
After creating the logical drives, you must assign merge group numbers to the shared drives. To set the
merge group numbers, do the following:
1. Click the ServeRAID controller in the Main Tree that contains the logical drives.
2. Click on the tool bar. The Configure controller for clustering window appears.
3. Click on the Shared check boxes for all logical drives.
4. Click OK.
5. Select Exit from the File menu to exit the ServeRAID Manager program.
6. Shut down the system and remove the IBM ServeRAID Support CD (or the configuration CD that
came with your system) from the CD-ROM drive.
7. Restart the system to make the new configuration become active.

Completing the failover environment installation

To complete the installation of the failover environment, do the following:
1. Install the ServeRAID device drivers for Windows NT. Refer to Chapter 4, "Installing device drivers
and utility programs" on page 47.
2. Install Windows NT. Refer to the documentation that came with the Windows NT software.
Note: Allow the auto-synchronization process to finish before testing your failover environment.
Chapter 3. Configuring controllers using the ServeRAID Manager program
45