Veritas InfoScale 7.4.1 Patch 1200 Release Notes - Linux

Last Published:
Product(s): InfoScale & Storage Foundation (7.4.1)
Platform: Linux

Changes related to Cluster Server agents

The following changes are made to the Cluster Server (VCS) agents.

SystemD support for Sybase and SybaseBk agents

The VCS agents for Sybase and SybaseBk are now supported in SystemD environments, and VCS unit service files are available for the corresponding application services.

Using SystemD attributes for Sybase and SybaseBk

SystemD attributes are only applicable on SLES 12, RHEL 7, and supported RHEL-compatible distributions. InfoScale provides the following optional attributes to the Sybase and the SybaseBk agents in SystemD environments.

Attribute

Description

Name: UseSystemD

Type: Boolean

Dimension: Scalar

SystemD is a system and service manager for Linux operating systems. It helps manage applications across Linux distributions that support SystemD feature.

  • When this attribute is set to 0, the online entry point starts the resource in user.slice.

  • When this attribute is set to 1, the online entry point brings the Sybase or the SybaseBk resource online as a service in system.slice.

The application process can be viewed as vcs-resourceName.service, in /etc/systemd/system.

Note:

After a system restart, if an application resource is started under user.slice, there is a possibility that the processes are not stopped gracefully. In this case, you can enable the UseSystemD attribute.

Name: SystemDAttrList

Type: String

Dimension: Scalar

Set the key-value pairs for the SystemD environment using this attribute.

Note:

Ensure that UseSystemD is set to 1 before you set the key-value pairs.

To know more about the different limits that you can apply to an application, refer to the appropriate Red Hat documentation.

You can customize the Sybase or the SybaseBk application unit service file with the attributes for SystemD in the following ways:

Adding key-value pairs to the SystemDAttrList attribute

  1. Set the UseSystemD attribute to 1.
  2. To add a key-value pair in the SystemDAttrList attribute, run the command:

    # hares -modify resourceType SystemDAttrList key value

    For example:

    # hares -modify sybase SystemDAttrList LimitNOFILE 2048

  3. (Optional) To modify an existing attribute, run the command:

    # hares -modify resourceType SystemDAttrList -update key value

    For example:

    # hares -modify sybase SystemDAttrList -update LimitNOFILE 1024

    After you update the SystemDAttrList attribute, the vcs-custom.conf file reflects the added key-value pairs.

    A sample set of SystemD attribute-value pairs:

    Systemd attribute = Value
LimitLOCKS = infinity
LimitMEMLOCK = infinity
LimitCORE = infinity
LimitNOFILE = 1024

Customizing the application unit service file with SystemD attributes

  1. To customize additional SystemD attributes in the vcs-resourceName.service file, create the foo.conf unit configuration file under /etc/systemd/system/vcs-sybase_res.service.d with new attributes.

    When the online entry point is invoked, SystemD applies the new attributes from foo.conf to vcs-resourceName.service, and then uses the unit service file for the application.

  2. After you add the required system attributes in foo.conf, load the SystemD daemon.

    # systemctl --system daemon-reload

  3. Verify the status of the application service.

    # systemctl status -l vcs-resourceName.service