1 つの PHY ステータスが「 Rate unknown 」である

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環境

AFF / FAS

問題

から SAS-EXPANDER-PHY-STATE、PHYの1つが速度をRate Unknownとして報告します。

Expander phy state on 0b.0 (NETAPP  :DS21212IOM12E    SHFFG1940000417):
 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      3      ----------------
 1/P0:1 12.0 Gb/s         --- --- --- --- 0      0      0      0      0      3      ----------------
 2/P0:2 12.0 Gb/s         --- --- --- --- 0      0      0      0      0      3      ----------------
 3/P0:3 12.0 Gb/s         --- --- --- --- 0      0      0      0      0      3      ----------------
 4/P1:0 12.0 Gb/s         --- --- --- --- 0      0      0      0      0      1      ----------------
 5/P1:1 Rate unknown
 6/P1:2 12.0 Gb/s         --- --- --- --- 0      0      0      0      0      1      ----------------
 7/P1:3 12.0 Gb/s         --- --- --- --- 0      0      0      0      0      1      ----------------

しかし、 sysconfig -aPHYは速度を12.0Gb/sと報告しています。

   slot 0: SAS Host Adapter 0b (PMC-Sierra PM8070 rev. C, SAS, <UP>)
       Firmware rev:     03.08.09.00
       Base WWN:       5:00a098:00b67f5:34
       Phy State:      [4] Enabled, 12.0 Gb/s
                 [5] Enabled, 12.0 Gb/s
                 [6] Enabled, 12.0 Gb/s
                 [7] Enabled, 12.0 Gb/s