IBM TotalStorage DS4500, Руководство пользователя

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c. Instead of turning off the power to other supporting devices ( for example,
management stations, Fibre Channel switches, or Ethernet switches),
disconnect the communications cables to the supporting devices.
Monitoring status through software
To monitor DS4500 Storage Server status, always run the DS4500 Storage
Manager software and check it frequently. Be sure to enable the management alerts
that you need. The DS4500 Storage Manager software provides the best way to
diagnose and repair DS4500 Storage Server failures. This software can help you:
v
Determine the nature of a failure
v Locate a failed component
v Provide recovery procedures to repair a failure
Although the DS4500 Storage Server has fault indicators, these lights are summary
indicators and might not identify the specific component that has failed or needs
replacing, or which type of recovery procedure you must perform. In some cases
(such as loss of redundancy in DS4500 Storage Server drive loops), the fault light
does not come on. Only the storage-management software can detect the failure.
Recovering from a DS4500 Storage Server failure might require you to perform
procedures other than replacing the component. The DS4500 Storage Manager
software gives these procedures when you are using the Recovery Guru menu.
Note: Always follow the software recovery procedures to prevent data loss.
For more information about the DS4500 Storage Manager software, refer to the
Online help or publications that are appropriate for your operating system (see
“About this document” on page xvii for a list of publications).
Firmware updates
In order to ensure the optimal operation of the DS4500 storage server and its
attached storage expansion enclosures, the storage expansion enclosure ESM
firmware, the DS4500 storage server 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/servers/storage/support/disk/
Apply the necessary updates before configuring the DS4500 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” on page 1).
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 DS4500 storage server’s logical drives. Failure to
observe the limitations, prerequisites, and dependencies in the Readme file might
result in a loss of data access.
Chapter 2. Operating the DS4500 Storage Server
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