For proper operation, the rack in which you install the appliance must meet the following requirements:

• A standard 19-in. (48.3-cm) wide, four-post EIA rack, with mounting posts that conform to English universal hole spacing, per section 1 of ANSI/EIA-310-D-1992.

• The rack post holes can be square 0.38-in. (9.6 mm), round 0.28-in. (7.1 mm), #12-24 UNC, or #10-32 UNC when you use the supplied slide rails.

• The minimum vertical rack space per server must be:

  • For the 44 and 56-core appliance, one RU, which equals 1.75 in. (44.45 mm).

  • For the 112-core appliance, four RUs, which equals 7.0 in. (177.8 mm).