驱动器被绕过，导致控制器进入混合路径状态

适用场景

• I/O模块(IOM)- 3
• I/O模块(IOM)- 6
• I/O模块(IOM)- 12
• I/O嵌入模块(IOM/E)
• ONTAP 9

问题描述

• 磁盘被绕过、并从SYSCONFIG -A 输出中丢失。
• EMS错误示例：

Mon Nov 23 14:43:22 CET [node1: dsa_worker4: ds.sas.hostphy.disableErr:critical]: [  7 ] on channels 0b shelf id 22 IOM B Disabled due to excessive invalid dword error.

• SAS-expander-PHY状态、驱动器报告Disabled/[reason]. 示例：

  Expander phy state on 0b.22 (NETAPP  :DS224IOM6        1200345678): 
                              Pwr         Invald Disprt Loss   Phy    CRC    Phy                    
                          Pwr Ccl Rsv Rls DWord  Error  Sync   Reset  Error  Change SATA            
PHY/BAY STATE             ON  Cnt Cnt Cnt Count  Count  Count  Prob   Cnt    Cnt    Affiliation     
------- ----------------- --- --- --- --- ------ ------ ------ ------ ------ ------ ----------------
15/7    Disabled/IDD     YES 0   0   0  
21/13   Disabled/BRST_PCD YES 3   0   0  

• 混合路径存储系统状态示例：

::>system node run -node <nodename> -command sysconfig -a NetApp Release 9.5P2: Thu Mar 14 10:01:49 EDT 2019 System ID: 0123456789 (NODE-01); partner ID: 0123456788 (NODE-02) System Serial Number: 0123456789012 (NODE-01) System Rev: A4 System Storage Configuration: Mixed-Path ...