メインコンテンツへスキップ

SAS ポート x に接続されているケーブルはデグレード モードで動作しています

Views:
85
Visibility:
Public
Votes:
0
Category:
fas-systems
Specialty:
hw
Last Updated:

環境

  • ONTAP 9
  • SASストレージ シェルフ
  • システムはケーブル接続がMultipath-HAです

問題

  • ONTAP イベント メッセージ システム :

[sas.cable.degraded:warning]: Cable attached to SAS port "0b" is functioning in a degraded mode

  • ONTAP event log show output

::> event log show -event sas.cable*
Time Node    Severity Event
---- --------- -------- ---------------------------
...  node_name ERROR   sas.cable.degraded: Cable attached to SAS port "0a" is functioning in a degraded 

  • ONTAPシステムヘルスがデグレード

::> system health subsystem show
Subsystem      Health
----------------- ------------------
SAS-connect     degraded
Environment     ok
...
SAS-connect_Cluster ok
13 entries were displayed.

  • 一部のPHYの速度は、ONTAP CLIsysconfig -a出力から確認すると、低下している、無効になっている、またはレートが不明です。

::> system node run -node <node_name> -command sysconfig -a

slot 0: SAS Host Adapter 0a (PMC-Sierra PM8072 rev. C, SAS, <UP>)
   Firmware rev:     03.08.09.00
   Base WWN:       5:00a098:00e1428:a4
   Temperature:     Not Available
   Phy State:      [8] Enabled, 12.0 Gb/s
                  [9] Enabled, 6.0 Gb/s
                  [10] Enabled, 6.0 Gb/s
                  [11] Enabled, 12.0 Gb/s      

または

slot 0: SAS Host Adapter 0a (PMC-Sierra PM8072 rev. C, SAS, <UP>)
   Firmware rev:     03.08.09.00
   Base WWN:       5:00a098:00f46d8:30
   Temperature:     Not Available
   Phy State:      [0] Disabled
                  [1] Disabled
                  [2] Enabled, Rate unknown
                  [3] Enabled, 12.0 Gb/s

  • 新しいSASケーブルでも問題が残っています
  • そのSASケーブルが接続されている新しいシェルフIOMモジュールでも問題が残っています。 

 

Sign in to view the entire content of this KB article.

New to NetApp?

Learn more about our award-winning Support

NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the information or observance of any recommendations provided herein. The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. This document and the information contained herein may be used solely in connection with the NetApp products discussed in this document.