HP Surestore Disk Array FC60 HP SureStore E Disk Array 12H User's and Service - Page 115

Troubleshooting Troubleshooting Replacing Modules Replacing Modules If any module has a fault, you should acquire a replacement module before removing the failed module and install a replacement module. Since the modules are hot pluggable, they can be replaced even when the array is online with the host. When replacing a fan module, do not leave a fan slot empty for more than ten minutes or a "power off pending" error will occur. When a fan slot is empty, the disk array will not be cooled properly. Without adequate cooling, disk module failures may occur. The control panel display module or backplane assembly should be replaced only by a qualified Field Service Engineer. To maintain availability while replacing a power module, always make sure that there are three power modules installed (to provide redundancy), then remove the failed power module. Never remove a power module from a disk array with only two power modules while the disk array is functioning. All modules are replaced in the same way (see Figure 27 through Figure 30): 1. Pull out the module lever. 2. Remove the module from the enclosure. 3. Install the new module. 115