Web Pages; Hardware Responsibilities - IBM TotalStorage DS4300 Installation, User's, And Maintenance Manual

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Web pages

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Hardware responsibilities

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v For all DS4000 models, the read/write cache should be enabled. In addition,
use the Storage Subsystem Profile to verify that cache is matched between
the controllers.
IBM maintains pages on the World Wide Web where you can get the latest
technical information and download device drivers and updates.
For DS4000 information, go to the following Web site:
www.ibm.com/servers/storage/support/disk/
For the latest information about operating system and HBA support, clustering
support, SAN fabric support, and Storage Manager feature support, see the
®
TotalStorage DS4000 Interoperability Matrix at the following Web site:
www.ibm.com/servers/storage/disk/ds4000/interop-matrix.html
In addition to the Health Check steps described above, regular hardware inspection
and maintenance helps to support the optimal performance of your DS4000 storage
configuration. You should periodically inspect the fibre channel components of your
DS4000 storage configuration.
The following guidelines are suggested:
v Maintain an up-to-date storage subsystem profile for your DS4000 storage
configuration. Save the profile to a server disk that will remain accessible in case
of a DS4000 storage configuration failure. Do not save the profile only to a LUN
in the DS4000 Storage Subsystem.
v Develop a change management plan. The plan should include schedules for
updating subsystem firmware and server host software.
Note: Some updates might require storage subsystem downtime.
v Use IBM-approved fibre channel cables for all situations. Note in your
configuration documentation whether any cables are not IBM-approved.
v Create and maintain a cabling diagram of the current SAN configuration. Keep
this diagram updated as you make configuration changes, and keep the cabling
diagram available for review.
v Create and maintain a list of other components that are being used within the
cabling diagram (such as the host system, fibre channel switches, and other SAN
attachments).
v Ensure that all ESMs are properly seated.
v Ensure that all drives are properly seated.
v Ensure that all SFP modules are properly seated.
v Confirm fibre channel cable loop size. (IBM specifications call for at least 3-inch
cable loops, but it is recommended that you use 6-inch cable loops or longer.)
v Ensure proper fibre channel cable management.
v Ensure proper air flow and temperature for all components in your EXP810
storage configuration.
Note: You can find details on many of these inspection and maintenance
responsibilities in the appropriate sections of this document.
Chapter 4. Operating the storage subsystem
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