Dell PowerVault Storage MD1280 Dell Storage MD1280 Service Guide - Page 17

CAUTION: The fan modules are heavy. To avoid injury, use both hands while removing the module. Figure 9. Removing a fan module 1. Fan module 2. Release tab 2. Rotate the replacement fan module so that the release tab and handle are on the right side. 3. Slide the replacement fan module into the chassis until it is fully seated and the release tab clicks into place. NOTE: Allow the enclosure to identify the fan module and determine its status. If the fan module is functioning properly, fan module's Module OK LED glows green and the battery fault LED and fan fault LED are off. Replacing hard drives The Dell Storage MD1280 enclosure supports hot‐swappable hard drives and supports up to 84 hard drives in 3.5-inch carriers, installed in a two‐drawer, three‐row, 14‐column configuration. Hard drives are connected to a backplane by using Disk Drive in Carrier (DDIC) hard drive carriers. Numbering the hard drive Hard drives are numbered in the secli, starting with 0. Dell Storage MD1280 DDIC slots are numbered 1- 42 in drive drawer 0, from front to back and left to right, and 43-84 in drive drawer 1. NOTE: The enumeration of hard drives in the secli software is zero-based. The physical enclosure enumerates hard drives starting from 1. 17