访问主机上的 LUN 时出现性能问题

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Category:: fc-series<a>SFP</a><a>TX</a><a>2008967516</a><a>低TX</a>

Specialty:: san

Last Updated:

适用场景

ONTAP 9
FCP
SAN

问题描述

尝试访问主机上的 LUN 时速度缓慢
在 EMS-LOG-FILE.GZ中观察到多个错误：

Wed Nov 03 02:02:59 CET [xxxxxx: fct_tpd_work_thread_0: fcp.io.status:debug]: STIO Adapter:xx IO WQE failure, Handle 0x0, Type 8, S_ID: 700D00, VPI: 3, OX_ID: 674, Status 0x3 Ext_Status 0x16 Wed Nov 03 02:13:11 CET [xxxxxxx: fct_tpd_work_thread_0: fcp.io.status:debug]: STIO Adapter:xx IO WQE failure, Handle 0x1, Type 8, S_ID: 711300, VPI: 259, OX_ID: 442, Status 0x3 Ext_Status 0x16 Wed Nov 03 06:22:37 CET [xxxxxxxxx: fct_tpd_work_thread_0: fcp.io.status:debug]: STIO Adapter:xx IO WQE failure, Handle 0x0, Type 8, S_ID: 7B0C00, VPI: 3, OX_ID: 20C, Status 0x3 Ext_Status 0x16 Wed Nov 03 06:57:49 CET [xxxxxxxx: fct_tpd_work_thread_0: fcp.io.status:debug]: STIO Adapter:xx IO WQE failure, Handle 0x1, Type 8, S_ID: 7A0D00, VPI: 259, OX_ID: 248, Status 0x3 Ext_Status 0x16

更换前端交换机和ONTAP 之间的缆线；无变化
有一种趋势是Tx/Rx值下降、可以使用命令进行验证：

Cluster::> fcp adapter show -node xxxxx -adapter xx