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DegradedOnlineShelfPort_Alert reported

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Applies to

  • ONTAP 9
  • External SAS disk shelves
  • Directly attached SAS shelves

Issue

  • DegradedOnlineShelfPort_Alert reported
 
::> system health alert show
               Node: Node-01
           Alert ID: DegradedOnlineShelfPort_Alert
           Resource: Shelf 1.1
           Severity: Major
    Indication Time: Wed May 31 14:10:49 2023
           Suppress: false
        Acknowledge: false
     Probable Cause: Shelf-to-shelf connection between disk shelves 1.1 3 port and 1.3 1 port have 2 inactive PHYs on IOM A.
    Possible Effect: Inactive PHYs might cause degraded link performance.
 Corrective Actions: 1. Consult the guide applicable to your IOM12 disk shelf to review cabling rules and complete the SAS cabling worksheet for your system.
                     2. Verify that disk shelf 1.1 has disabled PHYs by using the "storage shelf show -shelf 1.1 -port" command.
                     3. If the disk shelves have multiple paths to the node, reseat disk shelf 1.1 3 port cable on IOM A and disk shelf 1.3 1 port cable on IOM A.
                     4. Verify that the physical cable connection is secure and operational, and replace the cable, if necessary.
  •  Environment status shows high DWord counters

Shelf name:    0a.shelf13
Shelf id:      13
Channel:       0a
Module:        A
Term switch:   N/A
Shelf state:   ONLINE
Module state:  OK

Partial Path   Link    Invalid   Running     Loss    Phy       CRC     Phy
Disk    Port   Timeout        Rate     DWord    Disparity   Dword   Reset     Error   Change
Id     State   Value (ms)    (Gb/s)    Count    Count       Count   Problem   Count   Count
--------------------------------------------------------------------------------------------
[HST0] OK             7       12.0        0           0       0        0         0       1
[HST1] OK             7       12.0        0           0       0        0         0       1
[HST2] OK             7       12.0        0           0       0        0         0       1
[HST3] OK             7       12.0        0           0       0        0         0       1
[HST4] EMPTY          7         NA        0           0       0        0         0       0
[HST5] EMPTY          7         NA        0           0       0        0         0       0
[HST6] EMPTY          7         NA        0           0       0        0         0       0
[HST7] EMPTY          7         NA        0           0       0        0         0       0
[HST8] DIS/INVWD      7         NA    45951       45920       0        0         0       4
[HST9] OK             7       12.0        0           0       0        0         0       3

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