Completing the hardware location chart

Planning for the physical location includes documenting the rack locations of the enclosures and other devices that are based on the requirements of each device.

The hardware location chart represents the rack into which the enclosures are installed. Each row of the chart represents one Electronic Industries Alliance (EIA) 19-inch wide by 1.75-inch tall rack space or unit, each of which is commonly referred to as 1U of the rack. A control enclosure requires 2U of space; depending on the model, expansion enclosures can require 2U or 5U of space.

Each control enclosure can be connected to one chain of SAS expansion enclosures. The number of expansion enclosures in each SAS chain depends on the type of expansion enclosure (2U or 5U) and the overall chain weight. For more information, see Connecting optional 5U expansion enclosures.

If the rack contains sufficient space, plan to install the control enclosure in the middle of the rack to minimize the length of the SAS cables that are required to connect expansion enclosures to the control enclosure. Also, due to its size and weight, it is good practice to install a 5U expansion enclosure near the bottom of the rack.

Note: A mounting rail kit is provided with each control enclosure and expansion enclosure. Each rail can expand to accommodate a range of rack depths, which are measured between the front and rear mounting posts of the rack. However, because there are differences between some types of mounting rails, be sure to use the specific rail kit that is supplied with each control or expansion enclosure.
Table 1 summarizes the rack-mounting rail lengths for the Storwize® V7000 enclosures. The rack depth is measured between the front and rear mounting posts.
Table 1. Storwize V7000 rack mounting rail lengths
Enclosure Rail Length (Rack Depth)
Storwize V7000 Gen3 control enclosures 670 - 870 mm
Storwize V7000 Gen2+ control enclosures 685 - 765 mm
Storwize V7000 Gen2 control enclosure 685 - 765 mm
2U Expansion enclosures 595 - 755 mm
5U expansion enclosures 680 - 800 mm

Hardware location planning chart

As you design the rack for your system, use Table 2 to record the physical configuration of the control enclosures, expansion enclosures, and other devices in your system.

Table 2. Hardware locations of enclosures and other devices
Rack unit Rail kit P/N Component
EIA 42    
EIA 41    
EIA 40    
EIA 39    
EIA 38    
EIA 37    
EIA 36    
EIA 35    
EIA 34    
EIA 33    
EIA 32    
EIA 31    
EIA 30    
EIA 29    
EIA 28    
EIA 27    
EIA 26    
EIA 25    
EIA 24    
EIA 23    
EIA 22    
EIA 21    
EIA 20    
EIA 19    
EIA 18    
EIA 17    
EIA 16    
EIA 15    
EIA 14    
EIA 13    
EIA 12    
EIA 11    
EIA 10    
EIA 9    
EIA 8    
EIA 7    
EIA 6    
EIA 5    
EIA 4    
EIA 3    
EIA 2    
EIA 1    
Table 3 describes the components that your system might include.
Table 3. Storwize V7000 enclosure models
Device Machine type and model EIA units required Notes
Control enclosure 2076-524 2 24 2.5-inch drive slots; dual power supplies
Control enclosure 2076-624 2 24 2.5-inch drive slots; dual power supplies
Control enclosure 2076-U7A 2 24 2.5-inch drive slots; dual power supplies
Control enclosure 2076-724 2 24 2.5-inch drive slots; dual power supplies
Control enclosure 2076-U7B 2 24 2.5-inch drive slots; dual power supplies
Expansion enclosure 2076-12F 2 12 3.5-inch drive slots
Expansion enclosure 2076-24F 2 24 2.5-inch drive slots
Expansion enclosure 2076-92F 5 92 3.5-inch (8.89 cm) or 2.5-inch (6.35 cm) drives