Intel SC5250-E Datasheet download pdf (Page 65)

Intel® Entry Server Chassis SC5250-E Reliability, Serviceability, and Availability

Revision 1.02

Intel order number C32881-001

12. Reliability, Serviceability, and Availability

12.1 MTBF

Calculated Mean Time Between Failures (MTBF) at maximum configuration has been

calculated at 74000 hours for KDK at 35°C.

Table 12. MTBF Calculations

Subassembly

(Server at 35 degrees C ambient air)

Standard

Configuration

MTBF (hours)

Standard Configuration with Optional

Backplane

MTBF (hours)

450W Power Supply 100,000 100,000

Cooling fans (2- non redundant) 300,000 300,000

Hot Swap BP & SAF-TE card 1,500,000 1,500,000

Hot Swap SATA Back Plane 2,024,479 2,024,479

Front Panel Board 7,000,000 7,000,000

Intrussion Switch 25,000,000 25,000,000

Total Chassis Subassembly 74,000 70,000

12.2 Serviceability

The system is designed to be serviced only by qualified technical personnel.

The desired Mean Time To Repair (MTTR) of the system is 30 minutes including diagnosis of

the system problem. To meet this goal, the system enclosure and hardware have been

designed to minimize the MTTR.

The following are the maximum times that a trained field service technician should take to

perform the listed system maintenance procedures, after diagnosis of the system.

Table 13. Maximum Maintenance Procedure Times

Remove cover 1 minute

Remove and replace hard disk drive 5 minute

Remove and replace 5 ¼ peripheral device 5 minutes

Remove and replace power supply 5 minutes

Remove and replace drive cage fan 7 minutes

Remove and replace expansion board 5 minutes

Remove and replace front panel board 5 minutes

Remove and replace server board (with no expansion boards) 15 minutes

Overall MTTR 20 minutes

1 2 ... 60 61 62 63 64 65 66 67 68 69 70 71 72 73

No comments

Intel SC5250-E Datasheet Page 65