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レポートノードがないため、LinuxホストでISCSIパスが見つからない

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Category:
ontap-9
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san
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環境

  • ONTAP
  • Linux Host
  • ISCSI SAN

問題

  • Linuxホストで一部のLUNが4パスではなく2パスとして表示されます。
  • 同じホストでのパス数の違いは以下のとおりです:

予想:4パス 
実測:2パス

2 path
|-+- policy='service-time 0' prio=50 status=active
| `- 2:0:0:xx sdao 66:128  active ready running
`-+- policy='service-time 0' prio=10 status=enabled
`- 9:0:0:xx sdcn 69:176  active ready running
4 path 
|-+- policy='service-time 0' prio=50 status=active
| `- 7:0:0:xx sdcw 70:64   active ready running
`-+- policy='service-time 0' prio=10 status=enabled
|- 4:0:0:xx sdy  65:128  active ready running
|- 6:0:0:xx sdbf 67:144  active ready running
`- 5:0:0:xx sdcl 69:144  active ready running

2 path
|-+- policy='service-time 0' prio=50 status=active
| `- 3:0:0:xx sdaj 66:48  active ready running
`-+- policy='service-time 0' prio=10 status=enabled
`- 7:0:0:xx sdl  8:176  active ready running
4 path
|-+- policy='service-time 0' prio=50 status=active
| `- 6:0:0:x  sdg  8:96   active ready running
`-+- policy='service-time 0' prio=10 status=enabled
|- 5:0:0:x  sdb  8:16   active ready running
|- 2:0:0:x  sdak 66:64  active ready running
`- 9:0:0:x  sdaz 67:48  active ready running

  • 影響を受けるLUNのレポートノードが、4つではなく2つのレポートノードとして表示される 
  • lun mapping show -vserver [vserver name] -path [/vol/volname/lunname] -fields reporting-nodes commandを実行すると、レポートノードを表示できます。

影響を受けるLuns:

Vserver Name: SESKSVM26
        LUN Path: /vol/vol_1/lun_1
      [...]
        LUN Node: SESK00000000-08
    Reporting Nodes: SESK00000000-07, SESK00000000-08

影響を受けていないLUN:

Vserver Name: SESKSVM26
        LUN Path: /vol/vol_2/lun_2
      [...]
        LUN Node: SESK00000000-03
    Reporting Nodes: SESK00000000-03, SESK00000000-04, SESK00000000-05,
            SESK00000000-06

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