S5120-HI fan模块问题

Fan 1:

  Error: Failed to display the manufacture information of the specified fan.

Slot 2:

  ---- More ----                DEVICE_NAME          : S5120-52SC-HI

DEVICE_SERIAL_NUMBER :

MAC_ADDRESS          : MANUFACTURING_DATE   : 2014-05-31

VENDOR_NAME          : H3C

Power 1:

DEVICE_NAME          : LSPM2150A

DEVICE_SERIAL_NUMBER :

MANUFACTURING_DATE   : 2014-07-23

VENDOR_NAME          : H3C

Power 2:

  This Power does not exist!

Fan 1:

  Error: Failed to display the manufacture information of the specified fan.

%May 14 06:58:40:699 2000 CMF-Z4FD-S5120-SW-STK-1 DEVM/2/FAN_FAILED: -Slot=2; Fan 2 failed.

%May 14 06:58:41:937 2000 CMF-Z4FD-S5120-SW-STK-1 DEVM/2/FAN_FAILED: Fan 1 failed.

4FD-S5120-SW-STK-1 IFNET/3/LINK_UPDOWN: GigabitEthernet2/0/17 link status is UP.

%May 14 07:00:00:700 2000 CMF-Z4FD-S5120-SW-STK-1 DEVM/2/FAN_FAILED: -Slot=2; Fan 2 failed.

%May 14 07:00:01:937 2000 CMF-Z4FD-S5120-SW-STK-1 DEVM/2/FAN_FAILED: Fan 1 failed.

%May 14 07:01:20:700 2000 CMF-Z4FD-S5120-SW-STK-1 DEVM/2/FAN_FAILED: -Slot=2; Fan 2 failed.

%May 14 07:01:21:937 2000 CMF-Z4FD-S5120-SW-STK-1 DEVM/2/FAN_FAILED: Fan 1 failed.

%May 14 07:02:40:700 2000 CMF-Z4FD-S5120-SW-STK-1 DEVM/2/FAN_FAILED: -Slot=2; Fan 2 failed.

%May 14 07:02:41:937 2000 CMF-Z4FD-S5120-SW-STK-1 DEVM/2/FAN_FAILED: Fan 1 failed.

%May 14 07:04:00:700 2000 CMF-Z4FD-S5120-SW-STK-1 DEVM/2/FAN_FAILED: -Slot=2; Fan 2 failed.

%May 14 07:04:01:937 2000 CMF-Z4FD-S5120-SW-STK-1 DEVM/2/FAN_FAILED: Fan 1 failed.

%May 14 07:05:20:700 2000 CMF-Z4FD-S5120-SW-STK-1 DEVM/2/FAN_FAILED: -Slot=2; Fan 2 failed.

%May 14 07:05:21:937 2000 CMF-Z4FD-S5120-SW-STK-1 DEVM/2/FAN_FAILED: Fan 1 failed.

%May 14 07:05:36:611 2000 CMF-Z4FD-S5120-SW-STK-1 ARP/4/RATELIMIT: The ARP packet rate(456pps) exceeded the rate limit(100pps) on interface GigabitEthernet1/0/49 in the last 60 seconds.

  ---- More ----                %May 14 07:06:36:611 2000 CMF-Z4FD-S5120-SW-STK-1 ARP/4/RATELIMIT: The ARP packet rate(335pps) exceeded the rate limit(100pps) on interface GigabitEthernet1/0/49 in the last 60 seconds.

%May 14 07:06:40:700 2000 CMF-Z4FD-S5120-SW-STK-1 DEVM/2/FAN_FAILED: -Slot=2; Fan 2 failed.

%May 14 07:06:41:957 2000 CMF-Z4FD-S5120-SW-STK-1 DEVM/2/FAN_FAILED: Fan 1 failed.

%May 14 07:07:27:144 2000 CMF-Z4FD-S5120-SW-STK-1 IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/3 link status is DOWN.

%May 14 07:07:30:843 2000 CMF-Z4FD-S5120-SW-STK-1 IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/3 link status is UP.

%May 14 07:08:00:700 2000 CMF-Z4FD-S5120-SW-STK-1 DEVM/2/FAN_FAILED: -Slot=2; Fan 2 failed.

%May 14 07:08:01:957 2000 CMF-Z4FD-S5120-SW-STK-1 DEVM/2/FAN_FAILED: Fan 1 failed.

%May 14 07:09:20:700 2000 CMF-Z4FD-S5120-SW-STK-1 DEVM/2/FAN_FAILED: -Slot=2; Fan 2 failed.

%May 14 07:09:21:957 2000 CMF-Z4FD-S5120-SW-STK-1 DEVM/2/FAN_FAILED: Fan 1 failed.

%May 14 07:10:40:703 2000 CMF-Z4FD-S5120-SW-STK-1 DEVM/2/FAN_FAILED: -Slot=2; Fan 2 failed.

%May 14 07:10:41:957 2000 CMF-Z4FD-S5120-SW-STK-1 DEVM/2/FAN_FAILED: Fan 1 failed.

请问这个是风扇坏了吗

另外请教几个问题   S5120   HI   做堆叠，一共三台。       请教一下。1   此款交换机的 LSPM1FAN  模块是否支持热插拔。    2 目前三台LSPM1FAN 

模块都不工作了，是否因为堆叠造成其中一块换了，其他两块也停止工作呢?  3  更换的话要一次三块都更换吗？