390 IBM Midrange System Storage Hardware Guide
6. Unmount the file systems to flush I/O from the server cache to disks.
– If you are using a Windows operating system, remove the drive letter or the mount
points of the drive-to-LUN map definitions, instead of unmounting the file systems.
– See your operating-system documentation for information about the file system
unmount procedure.
7. Perform an incremental backup of the data that was changed since the full backup that
you made in 7.5.1, “Planning the upgrade” on page 388.
8. Make sure that the environmental service modules (ESMs) and hard disk drives in the
original storage subsystem are updated to the latest firmware level. To download the latest
firmware level, go to the following address:
http://www.ibm.com/systems/support/storage/disk/
7.5.4 Upgrading the controller firmware
To upgrade the controller firmware, perform the following steps:
1. Use the flow chart shown in Figure 7-48 on page 391 to determine the firmware version
required in the new storage subsystem. To download the latest firmware level, go to the
following address:
http://www.ibm.com/systems/support/storage/disk/
2. The controller firmware is normally listed as either xx.yy.zz.aa or xxyyzzaa, where xx.yy or
xxyy is the controller firmware version used for compatibility checking. If the first x=0, it
might not be identified. For example, 07.36.14.01 is the same as 7.36.14.01. The firmware
version used for compatibility checking in this example is 7.36.
To Next Page
Loading...
Need help?
General