PowerFlex： SVM vm.overcommit 最佳实践
Summary: 本文提供有关如何检查vm.overcommit_memory和vm.overcommit_ratio设置以及如何修改设置以符合最佳实践的说明。
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Instructions
要检查和/或修改 SVM vm.overcommit 设置，请执行以下步骤：
1.使用 SSH 以 root
2 身份登录到 SVM。运行 cat /etc/sysctl.conf |grep “vm.overcommit”
例如。
3、运行以下命令
验证
在环境中的所有 SVM 上重复这些步骤，以确保它们设置为建议的最佳实践设置。您无需将 SDS 置于维护模式即可执行此作。
1.使用 SSH 以 root
2 身份登录到 SVM。运行 cat /etc/sysctl.conf |grep “vm.overcommit”
例如。
[root@sds-node logs]# cat /etc/sysctl.conf | grep "vm.overcommit" vm.overcommit_memory = 2 vm.overcommit_ratio = 50
3、运行以下命令
sed -i 's/vm\.overcommit_memory = .*/vm\.overcommit_memory = 2/g' /etc/sysctl.conf sed -i 's/vm\.overcommit_ratio = .*/vm\.overcommit_ratio = 100/g' /etc/sysctl.conf sysctl -p
验证
[root@sds-node logs]# cat /etc/sysctl.conf | grep "vm.overcommit" vm.overcommit_memory = 2 vm.overcommit_ratio = 100
在环境中的所有 SVM 上重复这些步骤，以确保它们设置为建议的最佳实践设置。您无需将 SDS 置于维护模式即可执行此作。
Affected Products
PowerFlex rackArticle Properties
Article Number: 000198177
Article Type: How To
Last Modified: 26 Nov 2025
Version: 7
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