HP StorageWorks XP12000 Disk Array Site Preparation Guide (AE002-96040, March 2008)

3. Determine how much space you can assign to clearance C. For maintenance purposes, try to
make C larger (100 cm) rather than smaller (0 cm). The smaller C is, the larger A and B must
be.
4. In the table after the diagram, find the column that most closely matches the size of C. If your C
value is between two table values, use the larger table value. Then, find the row for your floor
load rating. Where the column and row intersect is the A+B value.
5. To determine clearance A and clearance B, divide the A+B value between A and B. They do not
need to be equal. For example, if the A+B value from the table is 60 cm, then A can be 40 cm
and B can be 20, or both A and B can be 30. However, if your configuration includes only a
DKC, or a DKC and one DKU, then A must be at least 28 cm (11.1 in) to allow the DKC front
door to open.
6. Calculate minimum floor clearances for the array using the following worksheet.
BackFront (add down)Right (add down)Left (add down)
Not applicableC = _________+B = _________+A = _______+Clearance values
80 cm (31.5 in)80 cm (31.5 in)=10 cm (3.94 in)=10 cm(3.94 in)=
Plus minimum service
clearance
80 cm (31.5 in)
Equals minimum floor
clearances
XP12000 Disk Array Site Preparation Guide 31