Installing storage enclosures

Perform this task on any rack from which the storage enclosures have been removed.

1. Remove the Weight Reduction Status chart from the CE envelope. The Weight Reduction Status chart contains a record of the original installed location of each storage enclosure. For a sample chart, see Figure 1.
   Figure 1. Sample of Models 92x, 93x, 94x, 95x, 9Ax, 9Bx Weight Reduction Status table (Model 922 rack shown)

   
2. Use the information in the chart to determine where each storage enclosure must be installed. For a description of the columns in the chart, see Table 1.

   Table 1. Description of columns in a sample Weight Reduction Status chart

   Column in chart	Description of column
   CRINSQ	Storage enclosure serial number (on the front of the storage enclosure, at the far right, between the rack mounting screws; the number is in a vertical orientation)
   CRMMDL	Rack model number
   MCSN	Machine serial number
   CRPLL2	Location of the storage enclosure (see Figure 2 and Figure 3)

   Figure 2. Physical location codes (Rack-1, Models 921, 922, 931, 932, 941, 9A2, 9B2)

   

   Figure 3. Physical location codes (expansion rack, Models 92E, 94E, 9AE)

   
   CAUTION:
   A fully populated storage enclosure weighs 121 kg (55 lb). This weight exceeds the safe lifting limit for a single service representative. Installation of this feature requires two service representatives.
   Note: DDMs are logically configured to a particular slot and if removed must be put back in the same slot.
3. Using the location information from step 2, install the storage enclosures in their original locations.
   1. Unlatch the sheet metal air flap so it can swing to the up position.
   2. Install the storage enclosure in the rack and fasten it with the four screws  2  provided. See Figure 4.
      Figure 4. Install the storage enclosure

      
   3. Connect the FC-AL cables to the Fiber Channel Interface Card connectors. For connector locations, see Figure 5.
      Figure 5. Storage enclosure locations

      
   4. Repeat step 3 for each storage enclosure to be installed.
4. At each unused storage enclosure position, make sure that the sheet metal air flap is latched down in order to maintain correct cooling air flow to the installed storage enclosures.
5. Return to the procedure that sent you here.