出现 FAS2820 (DISK REDUNDANCY FAILED) 错误

适用于

• FAS2820
• ONTAP 9

问题描述

• AutoSupport  (DISK REDUNDANCY FAILED) ERROR 从节点触发，导致两个节点的 HA 状态降级。

node-1： 

NetApp Release 9.14.1P6: Tue Jun 18 12:11:44 EDT 2024
   System ID: 0987654321 (node-1); partner ID: 0123456789 (node-2)
   System Serial Number: 95XXXXXXXXXX (node-1)
   System Rev: A6
   System Storage Configuration: Multi-Path HA <<<在问题之前，有Tri-Path HA
   System ACP Connectivity: Inband Active
   SAS2/SAS3 Mixed Stack Support: all
   All-Flash Optimized: false
   Capacity Optimized: false
 All SAN Array: false
   Backplane Part Number: DS21212
   Backplane Rev: 
   Backplane Serial Number: 792XXXXXXXXX

 

node-2： 

NetApp Release 9.14.1P6: Tue Jun 18 12:11:44 EDT 2024
   System ID: 0123456789 (node-2); partner ID: 0987654321 (node-1)
   System Serial Number: 95XXXXXXXXXX (node-2)
   System Rev: A6
   System Storage Configuration: Mixed-Path HA <<<在发布之前，有Tri-Path HA 
   System ACP Connectivity: Inband Active
   SAS2/SAS3 Mixed Stack Support: all
   All-Flash Optimized: false
   Capacity Optimized: false
 All SAN Array: false
   Backplane Part Number: DS21212
   Backplane Rev: 
   Backplane Serial Number: 792XXXXXXXXX

 

• 检查环境后，连接到 node-2 的 SAS 电缆 [7] 显示为 disconnected，并显示状态为 <N/A>。

 SAS cable information by element:
  [1] Internal connector
  [2] Internal connector
  [3] Vendor: Molex Inc.
    Type: MINI-SAS HD passive copper 2m  ID: 00  Swaps: 0
    Serial number: 123456789  Part number: 112-00437+A0
  [4] Vendor: <N/A> (disconnected)
    Type: <N/A><N/A><N/A> ID: <N/A> Swaps: 0
    Serial number: <N/A> Part number: <N/A>
  [5] Internal connector
  [6] Internal connector
  [7] Vendor: <N/A> (disconnected)　
    Type: <N/A><N/A><N/A> ID: <N/A> Swaps: 0
    Serial number: <N/A> Part number: <N/A>
  [8] Vendor: <N/A> (disconnected)
    Type: <N/A><N/A><N/A> ID: <N/A> Swaps: 0
    Serial number: <N/A> Part number: <N/A>

• 在 disconnected 之前，供应商名称和类型显示正确。

   SAS cable information by element:
    [1] Internal connector
    [2] Internal connector
    [3] Vendor: Molex Inc.
      Type: MINI-SAS HD passive copper 2m  ID: 00  Swaps: 0
      Serial number: 123456789  Part number: 112-00437+A0
    [4] Vendor: <N/A> (disconnected)
      Type: <N/A><N/A><N/A> ID: <N/A> Swaps: 0
      Serial number: <N/A> Part number: <N/A>
    [5] Internal connector
    [6] Internal connector
    [7] Vendor: Amphenol
      Type: MINI-SAS HD passive copper 0.5-1.0m ID: 01  Swaps: 0
      Serial number: APF12345678901 Part number: 112-00435+A0
    [8] Vendor: <N/A> (disconnected)
      Type: <N/A><N/A><N/A> ID: <N/A> Swaps: 0
      Serial number: <N/A> Part number: <N/A>
   ACP installed element list: 1, 2; with error: none

• FAS2820 控制器 A 上的 SAS 端口 [3] 和 [4] 分别被指定为 0b1 和 0b2 端口。
• 同样，在 FAS2820 控制器 B 上，端口 [7] 和 [8] 被指定为 0b1 和 0b2 端口。
• 某些路径或 IOM 在 SAS-EXPANDER-MAP 日志上不可见。

​​Expanders on channel 0a:
Level   1: WWN 500a09800f6e6b8d, ID  1, Serial Number '   ****', Product 'DS21212IOM12   ', Rev '0202', Slot B

Expanders on channel 0b:
Level   1: WWN 500a09800f7af03f, ID  0, Serial Number '   ****', Product 'DS21212IOM12G   ', Rev '0201', Slot A
Level   2: WWN 500a09800f6e6c4d, ID  7, Serial Number '   ****', Product 'DS21212IOM12   ', Rev '0202', Slot A
Level   3: WWN 500a09800f6e8335, ID  6, Serial Number '   ****', Product 'DS21212IOM12   ', Rev '0202', Slot A
Level   4: WWN 500a09800f6e6c65, ID  5, Serial Number '   ****', Product 'DS21212IOM12   ', Rev '0202', Slot A
Level   5: WWN 500a09800f6e6b81, ID  4, Serial Number '   ****', Product 'DS21212IOM12   ', Rev '0202', Slot A
Level   6: WWN 500a09800f6e6a99, ID  3, Serial Number '   ****', Product 'DS21212IOM12   ', Rev '0202', Slot A
Level   7: WWN 500a09800f6e68d5, ID  2, Serial Number '   ****', Product 'DS21212IOM12   ', Rev '0202', Slot A
Level   8: WWN 500a09800f6e3119, ID  1, Serial Number '   ****', Product 'DS21212IOM12   ', Rev '0202', Slot A
Expanders on channel 0c:
Level   1: WWN 500a09800f7aeb3f, ID  0, Serial Number '   ****', Product 'DS21212IOM12G   ', Rev '0201', Slot B
Level   2: WWN 500a09800f6e32f5, ID  7, Serial Number '   ****', Product 'DS21212IOM12   ', Rev '0202', Slot B
Level   3: WWN 500a09800f6e6aa9, ID  6, Serial Number '   ****', Product 'DS21212IOM12   ', Rev '0202', Slot B
Level   4: WWN 500a09800f6e6a91, ID  5, Serial Number '   ****', Product 'DS21212IOM12   ', Rev '0202', Slot B
Level   5: WWN 500a09800f6e64bd, ID  4, Serial Number '   ****', Product 'DS21212IOM12   ', Rev '0202', Slot B
Level   6: WWN 500a09800f6e6c2d, ID  3, Serial Number '   ****', Product 'DS21212IOM12   ', Rev '0202', Slot B
Level   7: WWN 500a09800f6e8365, ID  2, Serial Number '   ****', Product 'DS21212IOM12   ', Rev '0202', Slot B