由于锁定、网络处理(CPU N刀片)延迟较高、性能较差
适用场景
- ONTAP 9.6 及更高版本
- NFSv4
问题描述
- 的 " 网络 " 列显示了高延迟
qos statistics volume latency show - 出现高锁定卷转
Cluster::> set diag Cluster::*> statistics start -object rw_ctx -counter nfs_rewinds <wait 1 hour> Cluster::*> statistics show -object rw_ctx -counter nfs_rewinds -value >1 Object: rw_ctx Instance: rw_ctx Start-time: 10/1/2021 21:37:16 End-time: 10/1/2021 22:37:16 Scope: node1 Counter Value -------------------------------- -------------------------------- nfs_rewinds - Lock Open Owner 229597544 <--over 60,000 per second Lock Open State 18610 Cluster::*>