HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software Maintenance and Service Guide (EK-G80MS-SA. C01, March 2005)

Replacing BA370, M2100 & M2200 Enclosure Elements
155HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software
Maintenance and Service Guide
Replacing an ECB with the BA370 subsystem powered off
Use the following steps to replace the ECB with the BA370 subsystem powered
off:
Note: You can replace the ECB storage building block (SBB) while the storage system
is shut down by taking the following actions. First, issue the SET NOFAILOVER CLI
command from the operational controller. This takes the units and moves them from
the controller that is to be replaced to the operational controller. Second, shut down
the controller to be replaced by entering the SHUTDOWN THIS_CONTROLLER CLI
command from each controller prior to shutting down the controller. These commands
instruct the array controllers to flush all unwritten data from the cache modules and
discontinue all I/O activity.
1. If the HSG60 or HSG80 array controller and cache module are not operating,
go to step 4 on page 156. Otherwise, proceed to step 2.
2. Connect a PC or terminal to the maintenance port of the operational array
controller.
The controller connected to the PC or terminal becomes “this controller;” the
second controller becomes the “other controller.”
3. Shut down the array controllers.
■ In single-controller configurations, shut down “this controller” with the
following command:
SHUTDOWN THIS_CONTROLLER
■ In dual-redundant controller configurations, shut down the “other
controller” first, then shut down “this controller” with the following
commands:
SHUTDOWN OTHER_CONTROLLER
SHUTDOWN THIS_CONTROLLER
Note: After the array controllers shut down, the Reset buttons and the first three LEDs
turn on (see Figure 38 on page 102). This procedure takes several minutes,
depending on the amount of data that needs to be flushed from the cache modules.
Proceed only after the Reset buttons stop flashing and remain solid.