ディスクシェルフ障害 LED が点灯し、 EMS ログに「 Host Port Fail Disabled due to Excessive Invalid DWORD error 」と表示される

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Category:: disk-shelves

Specialty:: hw

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のしんだ

環境

Data ONTAP 8
ONTAP 9
FAS series
AFF series
All the NetApp external SAS shelves connected.

問題

Disk Shelf fault LED is on
EMS log has error information about disk shelf. Examples:

Thu May 07 11:23:12 +0200 [node_name: dsa_worker4: ds.sas.running.disparity:debug]: [HST2] on channels 0a shelf ID 11 IOM A bay - reports running disparity errors. Thu May 07 11:23:12 +0200 [node_name: dsa_worker4: ds.sas.hostphy.disableErr:alert]: [HST2] on channels 0a shelf id 11 IOM A disabled due to excessive invalid dword error. Thu May 07 11:23:12 +0200 [node_name: dsa_worker4: callhome.hostport.disable:alert]: Call home for HOST_PORT_FAIL - Disabled by IOM

3/10/2020 02:01:49 MCC    ERROR         asup.post.drop: AutoSupport message (System Notification from node-01 (HOST_PORT_FAIL - Disabled by IOM) ALERT) for host (0) was not posted to NetApp. The system will drop the message.
3/10/2020 00:19:56 MCC    ALERT         callhome.hostport.disable: Call home for HOST_PORT_FAIL - Disabled by IOM
3/10/2020 00:19:56 MCC    ALERT         ds.sas.hostphy.disableErr: [HST2] on channels 0c shelf id 22 IOM BDisabled due to excessive invalid dword error.

Tue Mar 10 09:17:59 CST [MCC: dsa_worker3: ses.exceptionShelfLog:debug]: Retrieving Exception SES Shelf Log information on channel 0c IOM module B disk shelf ID 22.
Tue Mar 10 09:19:11 CST [MCC: dsa_worker3: ds.sas.invalid.word:debug]: [HST2] on channels 0c shelf ID 22 IOM B reports an invalid word error.
...

"Invalid DWord errors" increasing at the "sasadmin expander_phy_state" output. Example:

Expander phy state on 0c.22 (NETAPP :DS21212IOM12A    SHJSGXXXXXXXXXX):
                              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 12.0 Gb/s         --- --- --- --- 0      0      0      0      0      1      ----------------
...
9/P2:1 12.0 Gb/s         --- --- --- --- 0      0      0      0      0      3      ----------------
10/P2:2 12.0 Gb/s         --- --- --- --- 947    24     0      0      0      3      ----------------
11/P2:3 12.0 Gb/s         --- --- --- --- 1      0      0      0      0      3      ---------------

Rate unknownDisabledsasadmin expander_phy_stateとが出力に表示されます。例：

Expander phy state on 0a.1 (NETAPP :DS21212IOM12A SHJSGXXXXXXXXXX): 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 ------- ----------------- --- --- --- --- ------ ------ ------ ------ ------ ------ ---------------- 8/P2:0 12.0 Gb/s --- --- --- --- 0 0 0 0 0 1 ---------------- 9/P2:1 12.0 Gb/s --- --- --- --- 1 1 0 0 0 1 ---------------- 10/P2:2 Rate unknown 11/P2:3 12.0 Gb/s --- --- --- --- 0 0 0 0 0 1 ----------------

Expander phy state on 0a.2 (NETAPP :DS21212IOM12A SHJSGXXXXXXXXXX): 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 12.0 Gb/s --- --- --- --- 0 0 0 0 0 1 ---------------- 1/P0:1 12.0 Gb/s --- --- --- --- 0 0 0 0 0 1 ---------------- 2/P0:2 Disabled 3/P0:3 12.0 Gb/s --- --- --- --- 0 0 0 0 0 1 ----------------