The following example shows the steps for adding a fourth Drive Enclosure to an existing string.
In this example, the string connects to SAS HBA port 0 on the Controller nodes. Depending on the string number and the configuration of the Controllers in your system, the string connects to SAS HBA port 0 or SAS HBA port 1 on the Controller nodes.
- Using a mini-SAS to mini-SAS cable, connect one end of the cable to I/O module 0, port 2 on Drive Enclosure 1 (DE 1).
- Connect the other end of the cable to I/O module 0, port 0 on Drive Enclosure 4 (DE 4).
- Using a mini-SAS to mini-SAS cable, connect one end of the cable to I/O module 1, port 2 on Drive Enclosure 2 (DE 2).
- Connect the other end of the cable to I/O module 1, port 0 on Drive Enclosure 4 (DE 4).
Figure 1: Connection for fourth Drive Enclosure in string
- Legend
1 I/O module 0, port 2 on DE 1 3 I/O module 1, port 2 on DE 2 2 I/O module 0, port 0 on DE 4 4 I/O module 1, port 0 on DE 4
- From a command line, issue fscli topology —list —violations.If there are topology violations, correct them prior to proceeding.
- Ensure that the cables do not obstruct access to the replaceable units in the Drive Enclosure and the Controllers.