IBM Partner Pavilion DS4100 manual Installing SFPs and fiber-optic cables

Installing SFPs and fiber-optic cables

Each RAID controller unit has two host ports and one expansion unit port. SFPs are inserted into the ports, and then fibre-channel cables are connected to the SFPs. For information on installing SFPs and fiber-optic cables, see “Working with SFPs and fiber-optic cables” on page 45.

Adding a DS4000 EXP100 to an existing DS4100 configuration (base storage server only)

You can add up to seven DS4000 EXP100 storage expansion units to a DS4100 storage server. However, you do not need to configure the DS4100 with the maximum number of DS4000 EXP100s at the time of initial installation. You can add additional DS4000 EXP100s to an existing DS4100 configuration (up to the maximum number of DS4000 EXP100s supported in a drive loop) as you need more capacity.

Important

There might be a requirement for new firmware to support the maximum number of DS4000 EXP100s in a drive loop. Always add new DS4000 EXP100s when the DS4100 is powered on and in optimal state. Do not add new DS4000 EXP100s when the DS4100 is powered down.

Before you cable DS4000 EXP100s to a loop, refer to the DS4100 Storage Server Fibre Channel Cabling Instructions that come with your storage server for specific instructions.

Figure 78 on page 110 shows the process of adding an additional DS4000 EXP100 to an existing DS4100 storage server configuration. Drive loops A and B form one redundant fibre-channel loop.

Note: Always add a new DS4000 EXP100 to the end of a drive loop.

Chapter 5. Installing and replacing components 109