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SAS adapter communication issue resulted in disk failure and disk missing

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Category:
fas-systems
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HW
Last Updated:

Applies to

  • FAS8020
  • SAS

Issue

  • The storage system was restarted due to a power failure in the server room.
  • Afterwards, one disk has failed and two disks were missing from the sysconfig -a output.
  • Resetting continues for SAS port 0a and two missed disks.
EMS:
Resetting SAS adapter 0a.
Resetting Unknown device 0a.02.6 from adapter 0a.
Resetting Unknown device 0b.02.14 from adapter 0a.
  • Phy state shows Disabled.
Sysconfig -a
slot 0: SAS Host Adapter 0a (PMC-Sierra PM8001 rev. C, SAS, <UP>)
Firmware rev:       01.12.06.00
Base WWN:           5:xxxxxx:xxxxxx:xx
Phy State:          [0] Disabled
[1] Disabled
[2] Disabled
[3] Enabled, 6.0 Gb/s
 
slot 0: SAS Host Adapter 0b (PMC-Sierra PM8001 rev. C, SAS, <UP>)
Firmware rev:       01.12.06.00
Base WWN:           5:00a098:0037dff:1c
Phy State:          [4] Disabled
[5] Disabled
[6] Disabled
[7] Enabled, 6.0 Gb/s

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