vCreate 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.
vCreate 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).
vEnsure that all ESMs are properly seated.
vEnsure that all drives are properly seated.
vEnsure that all SFP modules are properly seated.
vConfirm fibre channel cable loop size. (IBM specifications call for at least
vEnsure proper fibre channel cable management.
vEnsure 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.
In addition to these inspection and maintenance responsibilities, IBM also strongly recommends DS4000 training for staff that supports DS4000 storage configurations. Although training is not a part of the Health Check process, DS4000 training reduces the potential for configuration problems and contributes to the overall health of the system.
Powering on the storage subsystem
This section contains instructions for turning the storage subsystem on under normal and emergency situations. When you turn on and turn off the DS4700 Express, be sure to use the startup sequence in this section. If you are turning on the storage subsystem after an emergency shutdown or power outage, see “Restoring power after an unexpected shutdown” on page 137.
Turning on the storage subsystem
The following procedure covers two situations:
vThe entire storage subsystem has been shut down. (The main circuit breakers for the cabinet are off.)
vSome storage expansion enclosures are being powered on while others remain online. (The main circuit breakers for the cabinet are on.) You might encounter this if you are adding an additional storage expansion enclosure to increase storage capacity.
Attention:
1.Potential damage to
2.If you are connecting a power cord to a DS4700 Express Storage Subsystem or storage expansion enclosure, turn off both of its power switches first. If the main circuit breaker is off, be sure both power switches are off on each storage expansion enclosure in the cabinet before turning on the main circuit breakers.
1.Are the main circuit breakers turned on?
Chapter 4. Operating the storage subsystem 119
