Chapter 1 - Overview
18
7700 Flash Storage Platform Installation Guide 7.6.3.x
530-0267-00 Rev 02
The benefits for using a 1 RU racking space above the shelf, include:
•
Reduced exhaust airflow restrictions
•
Improved overall airflow
•
Improved access for hot-swap of components
•
Improved room for cable management
Note:
If implemented, this would be a 4 RU value per FSP shelf. An additional 1 RU space
should be considered when allocating RU space above the 7700 FSP Controller for the same
reasons. For more details on equipment racks, see the latest version
7000 Series Flash
Storage Platform Installation Guide
.
Note:
When installing 7000 Series FSP shelves in a 7700 FSP storage cluster, observe the
following rack mounting best practices.
— Weight: populate the equipment rack with the FSPs at the lowest possible level that helps
maintain the lowest center of gravity in rack.
— Cooling: mount FSPs at lower rack levels to improve access to cold air intake coming from
the floor.
— Serviceability: use an additional 1RU (rack unit) separation that improves ease-of-access
to FSPs during service and allows better access to system components from the top.
— Accessibility: maintain a minimum of three feet of clearance between the highest mounted
FSP and the data center ceiling to promote a safer environment for accessing, servicing,
or replacing FSPs.
Power
The typical load shown for the devices in a 7700 FSP configuration reflect 70%read/30% write
operations being performed at 25 degrees Celsius.
Each 7700 FSP Controller has two power supply units (PSUs), with one PSU acting as a spare. The
two PSUs operate in a current share mode, with each one rated to approximately 750 watts. All
7700 FSP Controller values in this table reflect maximum power values with an added 4.5% margin.
Device
Watts Per
Device
Watts Per
Cluster
Typical
Load
7700 FSP Controller
550
1100
1100
Switch
110
220
220
Shelf (each)
1056
(32 x 1TB, 7300E
FSP)
1600
(64 x 1TB, 7300 FSP)
Depends on the
number of deployed
FSPs
1056 (7300E FSP)
1600 (7300 FSP)
Table 1.5 Required AC Power (in Watts) for a 7700 Flash Storage Platform