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DS460C drawer in a critical state

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ontap-9
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hw
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Applies to

  • DS460C
  • FAS/AFF

Issue

  • Receiving DISK REDUNDANCY FAILED  errors
  • When looking at the drawers in the affected shelf, an IOM is missing information:

cluster1::> storage shelf drawer show
Drawer   Disk
Shelf Drawer    Status A/B     Closed? Count   Firmware A/B
----- ------ ----------------- ------- ----- -----------------
2.5
           1   normal/normal   closed      4 00000634/00000634
           2   normal/   -     closed      4 00000634/   -    
           3   normal/normal   closed      4 00000634/00000634
           4   normal/normal   closed      5 00000634/00000634
           5   normal/normal   closed      4 00000634/00000634
5 entries were displayed.

  • PHY paths to a specific drawer will be in an unhealthy state:

                     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
--------------------------------------------------------------------------------------------------

[DCM1.0] OK             7       12.0        0           0       0        0         0       3
[DCM1.1] OK             7       12.0        0           0       0        0         0       3
[DCM1.2] OK             7       12.0        0           0       0        0         0       3
[DCM1.3] OK             7       12.0        0           0       0        0         0       3
[DCM2.0] UNKWN LNK      7         NA        0           0       0        0         0       0
[DCM2.1] UNKWN LNK      7         NA        0           0       0        0         0       0
[DCM2.2] UNKWN LNK      7         NA        0           0       0        0         0       0
[DCM2.3] UNKWN LNK      7         NA        0           0       0        0         0       0
[DCM3.0] OK             7       12.0        0           0       0        0         0       3
[DCM3.1] OK             7       12.0        0           0       0        0         0       3
[DCM3.2] OK             7       12.0        0           0       0        0         0       3
[DCM3.3] OK             7       12.0        0           0       0        0         0       3

  • DS460C reports a critical fault from one of the DCM elements in storage show fault -v command output:

Enclosure Status: information
Channel: 9a
Shelf: 5
Shelf Type: DS460-12
Product Serial Number: SHJGD12345678
Module Type: IOM12B

Temperature Sensors:
Element Status         Status Bytes  Status Descriptions
 21: UNKNOWN           06,00,2E,00
 26: UNKNOWN           06,00,30,00

Enclosure:
Element Status         Status Bytes  Status Descriptions
  1: OK                01,00,02,00   FAIL

Drawers Control Module:
Element Status                      Status Bytes  Status Descriptions
  1 [IOM12 A]    : OK                01,00,01,01   REPORT, TYPE BIT0
  2 [IOM12 A]    : OK                01,00,01,01   REPORT, TYPE BIT0
  3 [IOM12 A]    : OK                01,00,01,01   REPORT, TYPE BIT0
  4 [IOM12 A]    : OK                01,00,01,01   REPORT, TYPE BIT0
  5 [IOM12 A]    : OK                01,00,01,01   REPORT, TYPE BIT0
  6 [IOM12 B]    : OK                01,00,01,01   REPORT, TYPE BIT0
  7 [IOM12 B]    : CRITICAL          02,40,00,00   FAIL
  8 [IOM12 B]    : OK                01,00,01,01   REPORT, TYPE BIT0
  9 [IOM12 B]    : OK                01,00,01,01   REPORT, TYPE BIT0
 10 [IOM12 B]    : OK                01,00,01,01   REPORT, TYPE BIT0

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