MetroCluster IP高写入延迟交换机ISL端口错误

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适用场景

MetroCluster IP
ONTAP 9
Cisco后端交换机

问题描述

客户端写入延迟较长。
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

在事件日志中显示SCSI.cmd.ABORTED和传输错误：

[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.

写入命令在重试时成功：

[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).