由于配对节点MB、一个PHY (内部磁盘架)的SAS适配器端口显示为速率未知

适用场景

• ONTAP 9
• FAS2820
• 内部磁盘架、SAS端口

问题描述

• 事件日志中报告以下警报：

[Node-02: mgwd: callhome.hm.alert.major:alert]: Call home for Health Monitor process nchm: DegradedOnlinePort_Alert[0a].

• System Manager将SAS端口报告为已降级(红色)

• PHY已在SAS端口上禁用：

slot 0: SAS Host Adapter 0c (PMC-Sierra PM8072 rev. C, SAS, <UP>)
    Firmware rev:      03.08.09.00
    Base WWN:         5:00a098:00f475d:38
    Temperature:       Not Available
    Phy State:        [8] Enabled, 12.0 Gb/s
                       [9] Enabled, 12.0 Gb/s
                       [10] Enabled, Rate unknown
                       [11] Enabled, 12.0 Gb/s

• 也可以从以下输出中检查相同的内容：

:> system node run -node <node> storage show shelf

Expander phy state on 0a.0 (NETAPP  :DS212IOM6E     SHXYZXXXX000000):
                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
------- ----------------- --- --- --- --- ------ ------ ------ ------ ------ ------ ----------------
 0/P0:0 6.0 Gb/s      --- --- --- --- 0    0    0    0    0    11    ----------------
 1/P0:1 Rate unknown
 2/P0:2 6.0 Gb/s      --- --- --- --- 0    0    0    0    0    11    ----------------

• 重新拔插受影响节点的主板可能会暂时修复问题描述、但错误再次出现