跳转到主内容

NFSv4 宽限期的工作原理是什么?

Views:
85
Visibility:
Public
Votes:
0
Category:
ontap-9
Specialty:
nas
Last Updated:

适用场景

  • ONTAP 9
  • NFSv4

问题解答

有两个与NFSv4相关的宽限期:

  1. 将LIF移动到另一个节点时、NFSv4客户端可以在 NFS选项中指定的持续时间内回收锁定 -v4-grace-seconds

  2.将聚合重新定位到另一个节点时,在 locking.grace_lease_seconds 节点级别选项指定的持续时间内会发生NLM锁定回收。 

注意: NFSv3访问 也会受到此问题的影响。

注意: 在上述任一时间段内、 NFSv4客户端都无法获取新锁定。

追加信息

  • 接管后、这两个时间段可能会重叠。
  • 在交还中、接口的还原与聚合重新定位无关、并且可以单独观察这两个时间段。
  • 根据客户端重试NFS调用的时间、客户端应用程序遇到的I/O延迟可能比宽限期本身更长。
  • TR-4067
  • system node run (系统节点运行)(netapp.com)

 

NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the information or observance of any recommendations provided herein. The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. This document and the information contained herein may be used solely in connection with the NetApp products discussed in this document.