6000W Power ISSUE
问题：
Customer have two 2500W power, now customer want to replace the 6000W power.
Customer want to check whether impact the business when replace the 6000W.
解决：
If customer have power usage exceeds need the downtime, as some of the linecards will go down due to lack of power. In case you have less than 2500w usage on the router, then follow the below steps.
1. have your power supply in redundant mode.
2. pull the power supply which is not active
3. Insert the 6000w power supply, and turn it on
4. Then remove the other 2500w supply if needed.
Base on the IOS problem:
Limited to 4,000 W in WS-C6509 and WS-C6506.
Follow is some documents:
6000 W AC-Input Power Supply (HW Restrict)
Restrict For IOS and Minimum Software (Release 12.2SR)
Removing and Installing the AC-Input Power Supplies (1000W, 1300W, 2500W, 4000W)
客户正常割接并顺利完成，但是发现power的状态不太正常：
C7609#show power system power redundancy mode = redundant system power total = 4536.00 Watts (108.00 Amps @ 42V) system power used = 1800.12 Watts (42.86 Amps @ 42V) system power available = 2735.88 Watts (65.14 Amps @ 42V) Power-Capacity PS-Fan Output Oper PS Type Watts A @42V Status Status State ---- ------------------ ------- ------ ------ ------ ----- 1 PWR-6000-DC 5771.64 137.42 OK OK on 2 PWR-6000-DC 5771.64 137.42 OK OK on Note: PS2 capacity is limited to 2940.00 Watts (70.00 Amps @ 42V) when PS1 is not present Pwr-Allocated Oper Fan Type Watts A @42V State ---- ------------------ ------- ------ ----- 1 FAN-MOD-09 241.50 5.75 OK 2 FAN-MOD-09 241.50 5.75 OK Pwr-Requested Pwr-Allocated Admin Oper Slot Card-Type Watts A @42V Watts A @42V State State ---- ------------------ ------- ------ ------- ------ ----- ----- 1 WS-X6724-SFP 125.16 2.98 125.16 2.98 on on 3 WS-X6704-10GE 377.16 8.98 377.16 8.98 on on 4 WS-X6724-SFP 125.16 2.98 125.16 2.98 on on 5 WS-SUP720-3B 282.24 6.72 282.24 6.72 on on 6 WS-SUP720-3B 282.24 6.72 282.24 6.72 on on 8 WS-X6724-SFP 125.16 2.98 125.16 2.98 on on
经过确认，发现：
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7609 has backplane board power limit: 4536W.
Even though the front end power supply can deliver up to 5771W, the chassis level power is capped by BP power limit.
因此现象是正常的。