IBM Partner Pavilion DS4100 manual Installing SFP modules

vDo not overtighten the cable straps or bend the cables to a radius of less than 38 mm (1.5 in.).

vDo not put excess weight on the cable at the connection point. Be sure that the cable is well supported.

Installing SFP modules

The DS4100 host ports require SFP modules. SFP modules are used to convert electrical signals to optical signals that are required for fibre channel transmission to and from RAID controllers. The DS4100 supports two types of SFP modules: one with a plastic latch and one with a wire latch. After you install the SFP modules, you use fiber-optic cables to connect the DS4100 to other fibre channel devices.

Before you install SFP modules and fiber-optic cables, read the following information:

vDo not mix long-wave SFPs and short-wave SFPs on a single storage server. Use either long-wave SFPs or short-wave SFPs. You can use the DS4000 Storage Manager client to view the storage subsystem profile in order to verify that you are not mixing long-wave and short-wave SFPs.

vThe SFP module housing has an integral guide key designed to prevent you from inserting the SFP module improperly.

vUse minimal pressure when you insert the SFP module into a port. Forcing the SFP module into a port could cause damage to the SFP module or the port.

vYou can insert or remove the SFP module while the port is powered on.

vThe operational loop performance is not affected when you install or remove an SFP module.

vYou must insert the SFP module into a port before you connect the fiber-optic cable.

vYou must remove the fiber-optic cable from the SFP module before you remove the SFP module from the port. See “Removing SFP modules” on page 48 for more information.

To install an SFP module, complete the following steps.

Statement 3:

CAUTION:

When laser products (such as CD-ROMs, DVD drives, fiber-optic devices, or transmitters) are installed, note the following:

vDo not remove the covers. Removing the covers of the laser product could result in exposure to hazardous laser radiation. There are no serviceable parts inside the device.

vUse of controls or adjustments or performance of procedures other than those specified herein might result in hazardous radiation exposure.

46IBM TotalStorage DS4100 Storage Server: Installation, User’s, and Maintenance Guide