在 MCC 环境中，多个磁盘出现故障并丢失环路

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适用场景

MetroCluster （两个节点）
FAS9000

问题描述

两个节点中有多个磁盘出现故障：

   节点 1
   Local broken disks

   RAID Disk   Device           HA SHELF BAY CHAN Pool Type RPM Used (MB/blks)   Phys (MB/blks)    ---------   ------           ------------- ---- ---- ---- ----- --------------   --------------    not responding   B1_SW1_D5:10.126L13   2a   0 12 FC:A 0 SAS 10000 1713523/3509295616 1716957/3516328368 (fast zeroed)    not responding   B1_SW1_D5:10.126L17   2a   0 16 FC:A 0 SAS 10000 1713523/3509295616 1716957/3516328368 (fast zeroed)    not responding   B1_SW1_D5:11.126L56   10a 0 3 FC:B 0 SAS 10000 1713523/3509295616 1716957/3516328368 (fast zeroed)    not responding   B2_SW2_D6:11.126L57   10b 0 4 FC:B 0 SAS 10000 1713523/3509295616 1716957/3516328368 (fast zeroed)    not responding   B2_SW2_D6:11.126L68   10b 0 15 FC:B 0 SAS 10000 1713523/3509295616 1716957/3516328368 (fast zeroed)

   节点 2
   Local broken disks

   RAID Disk   Device           HA SHELF BAY CHAN Pool Type RPM Used (MB/blks)   Phys (MB/blks)    ---------   ------           ------------- ---- ---- ---- ----- --------------   --------------    not responding   B1_SW1_D5:11.126L27   10a 1 0 FC:B 0 SAS 10000 1713523/3509295616 1716957/3516328368 (fast zeroed)
EMS 日志中存在以下错误：

1/3/2022 18:43:16 FAS9000-02 ERROR fci.device.login.failure: A login failure has occurred between Fibre Channel adapter 2b and processor device B2_SW2_D6:10.126 (0x02060a00), with error subcode 0x703.
在环路中看不到 ATTO （ B2_SW2_D6 ： 10.126L0 ）。

FC-to-SAS Bridge: B2_SW4_D8:10.126L0 : ATTO FibreBridge7600N 4.20 FB7600N103891 B2_SW4_D8:10.shelf10 : DS224-12 Firmware rev. IOM12 A: 0270 IOM12 B: 0270 B2_SW4_D8:10.shelf11 : DS224-12 Firmware rev. IOM12 A: 0270 IOM12 B: 0270 B2_SW4_D8:10.shelf12 : DS224-12 Firmware rev. IOM12 A: 0270 IOM12 B: 0270