iSCSI 连接丢失后，远程 ADP 分区失败
适用场景
- ONTAP 9
- MetroCluster IP
- A300/FAS8200、A200/FAS2600、A220/FAS2700、A700/FAS9000、FAS8300、 A250或C190
- 集群之间的 iSCSI 连接中断
- 后端交换机维护 / 故障
- SyncMirror 丛失败
- 磁盘 / 磁盘架计数不匹配
问题描述
- 集群之间暂时断开连接可能会导致远程驱动器标记
not responding为。事件日志将报告类似的消息：
[NodeA: intr: ctl.session.stateChanged:notice]: iSCSI CAM target layer's session state is changed to terminated for the initiator iqn.1994-09.org.freebsd:185abf42-1aba-11eb-a6fc-d039ea45ec7d (address: 10.1.2.3). Reason: no ping reply after 5 seconds.
[NodeA: kernel: iscsi.session.stateChanged:notice]: iSCSI session state is changed to Reconnecting for the target iqn.2016-07.com.netapp:f4d3fb1c-1aba-11eb-a87d-d039ea45eac8 (type: dr_partner, address: 10.1.1.4:65200). Reason: no ping reply after 5 seconds.
sysconfig -a显示了类似于以下内容的输出：
slot 0: Virtual iSCSI Host Adapter 0m
...
10.20: NETAPP X371_SLNGE960ATE NA52 915.4GB 520B/sect (S/N) (Failed)
sysconfig -r输出类似：
Local broken disks RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks) --------- ------ ------------- ---- ---- ---- ----- -------------- -------------- not responding 0m.i2.1L21P3 0m 0 21 1 SSD N/A 63849/130764288 63857/130780672 ... not responding 0m.i1.3L27 0m 10 20 1 SSD N/A 915465/1874872832 915715/1875385008