由于缺少报告节点，Linux 主机上缺少 iSCSI 路径
适用于
- ONTAP
- Linux 主机
- ISCSI SAN
问题描述
- 在 Linux 主机上显示 2 路径而不是 4 路径的 LUN 很少。
- 同一主机的路径计数变化如下所示：
预期：4 条路径
观察到：2 条路径
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
- 受影响 LUN 上的报告节点显示为两个报告节点而不是四个节点
lun mapping show -vserver [vserver name] -path [/vol/volname/lunname] -fields reporting-nodes命令可以运行以查看报告节点。
受影响的 LUN：
Vserver Name: SESKSVM26
LUN Path: /vol/vol_1/lun_1
[...]
LUN Node: SESK00000000-08
Reporting Nodes: SESK00000000-07, SESK00000000-08
未受影响的 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