跳转到主内容

FabricPool非活动数据报告的工作原理是什么?

Views:
87
Visibility:
Public
Votes:
1
Category:
cloud-tiering
Specialty:
core
Last Updated:

 

适用于

问题解答

块温度

将块写入本地层时、系统会为其分配一个温度值、指示它很热。随着时间的推移、后台冷却扫描会对块进行冷却、使热块变热、如果尚未读取、最终会将块变冷。假设没有活动、则根据tiering-minimum-cooling-days 设置设置的时间、数据块将变冷。

非活动数据报告
  • 启用 IDR 后,它会在固定的 31 天冷却期内监控底层数据访问,以确定哪些数据被视为冷数据或非活动数据。
  • 从 ONTAP 9.8 开始,IDR 使用的冷却期可以根据 autosnapshot-only 分层策略进行调整。
  1. 要验证聚合上是否启用了 IDR,请使用以下命令storage aggregate show -fields is-inactive-data-reporting-enabled

::> storage aggregate show -fields is-inactive-data-reporting-enabled   
aggregate is-inactive-data-reporting-enabled
----------------- ----------------------------------
aggr0_cluster1_01 false
aggr0_cluster1_02 false
cluster1_01_SSD_1 false
cluster1_02_SSD_1 false
4 entries were displayed.

  1. 如果未启用IDR、请使用命令 storage aggregate modify -aggregate <aggr_name> -is-inactive-data-reporting-enabled true  打开非活动数据报告。
  1. 要显示卷上有多少数据处于非活动状态,请使用 AutoSupport 部分 VOLUME.XML 或 volume show 命令带有-fields performance-tier-inactive-user-data,performance-tier-inactive-user-data-percent参数

::> volume show -fields performance-tier-inactive-user-data,performance-tier-inactive-user-data-percent   

vserver volume performance-tier-inactive-user-data performance-tier-inactive-user-data-percent
------- ------ ----------------------------------- -------------------------------------------
vsim1 vol0 0B 0%
vs1 vs1rv1 0B 0%
vs1 vv1 10.34MB 0%
vs1 vv2 10.38MB 0%
4 entries were displayed.

  • performance-tier-inactive-user-data 字段显示性能层中存储的非活动用户数据量、如果卷位于FabricPool中且已为其指定自动分层策略、则这些数据可以分层到云层
  • performance-tier-inactive-user-data-percent 字段显示活动文件系统和Snapshot副本中处于非活动状态的数据百分比
  1. 要显示每个卷的 FabricPool 性能和云层中存储的数据量,请运行命令volume show-footprint或使用 AutoSupport 部分VOL-STATUS-F 

::> volume show-footprint -volume vol1

Vserver : SVM1
Volume : vol1

Feature Used Used%
-------------------------------- ---------------- -----   
Volume Data Footprint 183GB 1%
Footprint in Performance Tier 8.85GB 5%
Footprint in StorageAccount 174GB 95%
Flexible Volume Metadata 1.04GB 0%
Delayed Frees 28.8MB 0%

Total 184GB 1%

追加信息

参考:NetApp云层和非活动数据报告   

注意

如果聚合未启用 IDR 或TSSE,则非 FabricPool 聚合(包括 HDD 聚合)将不会在后台计算块温度。

 

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.