iSCSI 会话状态将更改为重新连接目标

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适用于

ONTAP 9
MetroCluster IP
Broadcom AES53248 交换机
Broadcom EFOS 固件 3.4.4.4

问题

受影响的 MetroCluster 站点断电。
启动控制台日志显示 iSCSI session state is changed to Reconnecting for the target错误。

示例：

[ClusterB-01:iscsi.session.stateChanged:notice]: iSCSI session state is changed to Reconnecting for the target iqn.2016-06.com.netapp:09868cf1-034a-11e7-8ac6-d039ea1d28c3 (type: dr_partner, address: 192.168.188.1:65200). Reason: session login timed out.
 [ClusterB-01:iscsi.session.stateChanged:notice]: iSCSI session state is changed to Reconnecting for the target iqn.2016-06.com.netapp:76acc4e4-034b-11e7-b81d-d039ea1d63df (type: dr_auxiliary, address: 192.168.188.2:65200). Reason: session login timed out.

无法在发生崩溃时启动 ONTAP

示例：[ClusterB-02:cf.fm.noMBDisksOrIc:error]: Could not find the local mailbox disks. Could not determine the firmware state of the partner through the HA interconnect. [ClusterB-02:mcc.config.bootConfigNotRead:ALERT]: Configuration could not be read from persistent storage due to internal error Failed to retrieve persistent storage (MBX) due to no mailbox disks being found. The system will try to retrieve or set the configuration automatically later, during boot. PANIC : Root volume is offline. version: 9.7P3: Fri Apr 17 10:40:14 EDT 2020

有时可以启动 ONTAP ，但看不到远程磁盘。

示例：
Aggregate aggr0_CPJS_ClusterB_01 (online, raid_dp, mirror degraded, fast zeroed) (block checksums) Plex /aggr0_CPJS_ClusterB_01/plex0 (online, normal, active, pool0) RAID group /aggr0_CPJS_ClusterB_01/plex0/rg0 (normal, block checksums) RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks) --------- ------ ------------- ---- ---- ---- ----- -------------- -------------- dparity 0a.10.0 0a 10 0 SA:A 0 SSD N/A 915465/1874872832 915715/1875385008 (fast zeroed) parity 0a.10.1 0a 10 1 SA:A 0 SSD N/A 915465/1874872832 915715/1875385008 (fast zeroed) data 0a.10.2 0a 10 2 SA:A 0 SSD N/A 915465/1874872832 915715/1875385008 (fast zeroed) Plex /aggr0_CPJS_ClusterB_01/plex6 (offline, failed, inactive)

T6 卡的两个端口状态为 auto-unknown-fd-down。

示例：
slot 1: Dual 10/25G Ethernet T6225-CR e1a MAC Address: 00:07:43:5c:54:10 (auto-unknown-fd-down) e1b MAC Address: 00:07:43:5c:54:18 (auto-unknown-fd-down) Device Type: T6 2 Firmware Version: 1.23.0.0 Part Number: 110122960B0 Hardware Revision: 0 Serial Number: PT20201067

已更换 T6 卡无法解决此问题。
两个交换机端口的链路状态为Down 与 ONTAP 的 T6 端口连接的状态。

示例：

（Switchname） #show port all

Admin Physical Physical Link Link LACP Actor Intf Type Mode Mode Status Status Trap Mode Timeout --------- ------ --------- ---------- ---------- ------ ------- ------ -------- 0/1 Enable 10G Full 10G Full Up Enable Enable long 0/2 Enable 10G Full 10G Full Up Enable Enable long 0/3 Disable Auto Down Enable Enable long 0/4 Disable Auto Down Enable Enable long 0/5 Enable Auto Down Enable Enable long 0/6 Enable Auto Down Enable Enable long 0/7 Disable Auto Down Enable Enable long 0/8 Disable Auto Down Enable Enable long 0/9 Enable Auto Down Enable Enable long 0/10 Enable Auto Down Enable Enable long 0/11 Disable Auto Down Enable Enable long 0/12 Disable Auto Down Enable Enable long 0/13 PC Mbr Enable 10G Full 10G Full Up Enable Enable long 0/14 PC Mbr Enable 10G Full 10G Full Up Enable Enable long 0/15 PC Mbr Enable 10G Full 10G Full Up Enable Enable long 0/16 PC Mbr Enable 10G Full 10G Full Up Enable Enable long 0/55 PC Mbr Enable 100G Full 100G Full Up Enable Enable long 0/56 PC Mbr Enable 100G Full 100G Full Up Enable Enable long 0/81 Disable 25G Full Detach Enable Enable long