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SAS PHY state degradation on DS212-12 shelves

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Applies to

  • DS212-12 shelves
  • ONTAP 9
  • NetApp storage systems with SAS connections

Issue

  • SAS PHY state on DS212-12 shelves have degraded from 12.0 Gb/s to 6.0 Gb/s observed on slot 0 ports both 0b and 4c.

 sysconfig -a output:

     slot 0: SAS Host Adapter 0b (Broadcom SAS3616W rev. 2, SAS, <UP>)
             Firmware rev:      12.00.00.00
             NVDATA rev:        12.03.01.03
             Base WWN:          5:XXXXXX:XXXXXXX:e6
             Temperature:       Not Available
             Phy State:         [0] Enabled, 12.0 Gb/s
                                [1] Enabled, 12.0 Gb/s
                                [2] Enabled, 12.0 Gb/s
                                [3] Enabled, 6.0 Gb/s
             Mini-SAS HD Vendor:        MOLEX
             Mini-SAS HD Part Number:   112-00453+A0
             Mini-SAS HD Type:          Optical (850nm VCSEL) 15m end_1
             Mini-SAS HD Serial Number: 93XXXXXXXXXX29-A

             Shelf 30: DS212-12  Firmware rev. IOM12B A: 0130  IOM12B B: 0130
             Shelf 31: DS212-12  Firmware rev. IOM12B A: 0130  IOM12B B: 0130
             Shelf 32: DS212-12  Firmware rev. IOM12B A: 0130  IOM12B B: 0130
             Shelf 33: DS212-12  Firmware rev. IOM12B A: 0130  IOM12B B: 0130
             Shelf 34: DS212-12  Firmware rev. IOM12B A: 0130  IOM12B B: 0130
             Shelf 35: DS212-12  Firmware rev. IOM12B A: 0130  IOM12B B: 0130
             Shelf 36: DS212-12  Firmware rev. IOM12B A: 0130  IOM12B B: 0130
             Shelf 37: DS212-12  Firmware rev. IOM12B A: 0130  IOM12B B: 0130


      slot 4: SAS Host Adapter 4c (PMC-Sierra PM8072 rev. C, SAS, <UP>)
             MFG Part Number:    Microsemi Corp. 110-03801 rev. A0
             Part number:        111-03801+A0
             Serial number:      0BXXXXXXXF4
             Date Code:          20200921
             Firmware rev:       03.08.09.00
             Base WWN:           5:XXXXXX:XXXXXXX:08
             Temperature:        44 C
             Phy State:          [0] Enabled, 12.0 Gb/s
                                 [1] Enabled, 12.0 Gb/s
                                 [2] Enabled, 12.0 Gb/s
                                 [3] Enabled, 6.0 Gb/s
             Mini-SAS HD Vendor:        Amphenol
             Mini-SAS HD Part Number:   112-00453+A0
             Mini-SAS HD Type:          Optical (850nm VCSEL) 15m ID:00
             Mini-SAS HD Serial Number: APXXXXXXXXXX38

             Shelf 30: DS212-12  Firmware rev. IOM12B A: 0130  IOM12B B: 0130
             Shelf 31: DS212-12  Firmware rev. IOM12B A: 0130  IOM12B B: 0130
             Shelf 32: DS212-12  Firmware rev. IOM12B A: 0130  IOM12B B: 0130
             Shelf 33: DS212-12  Firmware rev. IOM12B A: 0130  IOM12B B: 0130
             Shelf 34: DS212-12  Firmware rev. IOM12B A: 0130  IOM12B B: 0130
             Shelf 35: DS212-12  Firmware rev. IOM12B A: 0130  IOM12B B: 0130
             Shelf 36: DS212-12  Firmware rev. IOM12B A: 0130  IOM12B B: 0130
             Shelf 37: DS212-12  Firmware rev. IOM12B A: 0130  IOM12B B: 0130

  • SAS-EXPANDER-PHY-STATE output indicates PHY 11 on shelf 37 has degraded to 6.0 Gb/s.

Expander phy state on 0b.37 (NETAPP  :DS21212IOM12     SHXXXXXXXXXXXXX95):
                              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 12.0 Gb/s         --- --- --- --- 0      0      0      0      0      1      ----------------
3/P0:3 12.0 Gb/s         --- --- --- --- 0      0      0      0      0      1      ----------------
4/P1:0 Disabled
 5/P1:1 Disabled
 6/P1:2 Disabled
 7/P1:3 Disabled
 8/P2:0 12.0 Gb/s         --- --- --- --- 0      0      0      0      0      13     ----------------
9/P2:1 12.0 Gb/s         --- --- --- --- 0      0      0      0      0      13     ----------------
10/P2:2 12.0 Gb/s         --- --- --- --- 0      0      0      0      0      13     ----------------
11/P2:3 6.0 Gb/s          --- --- --- --- 1      1      0      0      0      13     ----------------

 

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