MetroCluster IP 高写入延迟交换机 isl 端口错误
适用于
- MetroCluster IP
- ONTAP 9
- Cisco 后端交换机
问题
- 客户端经历高写入延迟。
和/或
- 重建进度极慢
- 交换机 ISL 端口显示大量错误:
switch01# show interface counters errors
--------------------------------------------------------------------------------
Port Align-Err FCS-Err Xmit-Err Rcv-Err UnderSize OutDiscards
--------------------------------------------------------------------------------
Eth1/15 557 921949 0 922506 0 8452
- scsi.cmd.aborted 和传输错误显示在事件日志中:
[node01: scsi_cmdblk_strthr_admin: scsi.cmd.abortedByHost:error]: Disk device 0m.i2.2L3: Command aborted by host adapter: HA status 0x13: cdb 0x9a:000000015e4bc200:0002:0300.
[node01: doneq0: scsi.mcc.adt.ioTransportError:error]: mcc_adt[2] - Transport error during execution of command: HA status 0x13: CAM transport status 0x1b : cdb 0x9a:000000015e4c6600:0002:0300.
- 重试时写入命令成功:
[node01: scsi_cmdblk_strthr_admin: scsi.cmd.retrySuccess:debug]: Disk device 0v.i2.0L3: request successful after retry #1/#0: cdb 0x9a:000000015e4c3800:0002:0300 (13728).