Installation guidelines

Follow these guidelines when installing the IBM c-type SAN device.

  • Plan your site configuration and prepare the site before installing the chassis. We recommend that you use the site planning tasks listed in Site planning and maintenance records.
  • Ensure that there is adequate space around the switch to allow for servicing the switch and for adequate airflow. Airflow requirements are listed in Product specifications.
  • Ensure that the air-conditioning meets the heat dissipation requirements listed in Product specifications.
  • Ensure that the rack meets the requirements listed in Rack requirements.
  • Ensure that the site power meets the power requirements listed in Product specifications. You can use an uninterruptible power supply (UPS) to protect against power failures.
CAUTION:
Avoid UPS types that use ferroresonant technology. These UPS types can become unstable with systems such as the IBM c-type SAN Director series, which can have substantial current draw fluctuations because of fluctuating data traffic patterns.
  • Ensure that circuits are sized according to local and national codes. For North America:
  • The 3000-W AC power supplies require a 20-A circuit.
  • If you are using 200/240 VAC power sources in North America, the circuits must be protected by two-pole circuit breakers.
CAUTION:
To prevent loss of input power, ensure that the total maximum loads on the circuits supplying power are within the current ratings of the wiring and breakers.

Use the following screw torques when installing the switch:

  • Captive screws: 4 in-lb
  • M3 screws: 4 in-lb
  • M4 screws: 12 in-lb
  • M6 screws: 20 in-lb
  • 12-24 screws: 30 in-lb
  • 10-20 screws: 22 in-lb