The GPFS portability layer (PL) is kernel-specific, and it must be created separately for each operating system level within your cluster.

GPFS 可移植层（PL）是内核特有的，必须为集群中的每个操作系统级别单独创建。

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In DB2, users are created at operating system level.

在DB 2中，在操作系统级上创建用户。

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Check the server's operating system level by running oslevel -s.

通过运行oslevel—s来检查服务器的操作系统级别。

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Targeting at the operating system level will no longer be available.

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VMware also benefits by creating even more demand for its cloud-level operating system, and staves off competitors that also want to create meta-server environments, like Microsoft.

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All of this is possible because of virtualization, a process which increases effectiveness by inserting a level of software between the operating system and the hardware.

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