IBM DS4700 manual Firmware updates, Troubleshooting the storage subsystem

7.Select the Drives tab.

8.Scroll through the list to find the drive values such as Product ID.

Firmware updates

Attention: Save the storage subsystem profile before performing any controller or ESM firmware upgrades. Save the DS4700 Express storage subsystem profile and all configuration (*.cfg) files to a server disk that will remain accessible in the event of a DS4000 storage configuration failure. Do not save these files only to a LUN in the DS4000 Storage Subsystem.

To ensure the optimal operation of the DS4700 Express and its attached storage expansion enclosures, the storage expansion enclosure ESM firmware, the DS4700 Express controller firmware, the hard drive firmware, and the NVSRAM (for controllers only) must be up to date. Go to the following Web site to get the latest updates.

www.ibm.com/systems/support/storage/disk

Always check the readme files that are included with the firmware packages for the most up-to-date information about firmware prerequisites, firmware update instructions, and host I/O restrictions, if any. Apply the necessary updates before configuring the storage subsystem arrays and logical drives. Subscribe to My Support for automatic notifications of firmware or Storage Manager software updates or any important information about your DS4000 subsystems (see “Product updates and support notifications” on page 5).

Attention: Read the readme file that is included in each firmware or DS4000 Storage Manager software package for any limitations, subsystem firmware prerequisites, or download-sequence information. For example, the controller firmware code might require the storage expansion enclosure ESM firmware to be upgraded first to a particular version, or the controller firmware download might require the halting of I/Os to the DS4700 Express's logical drives. Failure to observe the limitations, prerequisites, and dependencies in the readme file might result in a loss of data access. See “Finding DS4000 readme files” on page xxvii to learn how to access the DS4000 readme files on the Web.

Unless the readme file contains special requirements for the sequence in which you upgrade firmware, you should perform firmware upgrades in the following sequence:

1.ESM firmware for the storage expansion enclosures

2.Controller firmware

3.Controller NVSRAM

4.Drive firmware

Troubleshooting the storage subsystem

The DS4000 Storage Manager is the best way to monitor the storage subsystem, diagnose a problem, and recover from a hardware failure. You should run the DS4000 Storage Manager continuously, and frequently check the configuration status.

Use the following procedure to check the status of and identify a problem with the storage subsystem. If a problem has occurred, use the DS4000 Storage Manager client software and the LEDs on the storage subsystem to help locate a failed component.

124IBM System Storage DS4700 Express Storage Subsystem: Installation, User’s and Maintenance Guide