IBM Storage Scale Client configurations
The IBM® Pattern for IBM Storage Scale provides integrated management capabilities so you can deploy a number of different file server configurations.
You can use the IBM Storage Scale Client Policy to attach to the IBM Storage Scale shared file system when your client instance is a virtual application pattern, or when you want to perform the IBM Storage Scale Client installation before any of the middleware scripts are run.
Use script packages when your IBM Storage Scale Client instance is a classic virtual system instance, or when you want to perform the IBM Storage Scale Client installation after the instance deployment.
Pattern developers using IBM Storage Scale need to specify basic file system information. During pattern deployment, the IBM Storage Scale Client script packages or the IBM Storage Scale Client Policy uses this information to configure the IBM Storage Scale Client instance to access the file system on a deployed IBM Storage Scale Server instance.
IBM Storage Scale Client deployments
- The IBM shared service for IBM Storage Scale simplifies the
deployment of IBM Storage Scale Clients by providing
information about the available IBM Storage Scale Server
that these clients can use. IBM Storage Scale Clients do
not need to know the IP or communication key to reach its IBM Storage Scale Server because this information is provided
by the shared service instance.
The system administrator must deploy instances of this shared service in the same environment where future IBM Storage Scale Client deployments are expected. The shared service does not need to reside on the same cloud group, or even the same Cloud Pak System Software on IBM Cloud Pak System, with the IBM Storage Scale Server.
The IBM shared service for IBM Storage Scale also controls which IBM Storage Scale Clients can have access to a particular IBM Storage Scale Server deployment. IBM Storage Scale Clients can access only the IBM Storage Scale Servers made available through the shared service.
Note:- The IBM Storage Scale Clients can provide the IBM Storage Scale Server information at deployment time, thus eliminating the requirement to deploy the IBM Storage Scale shared service. For more information, see the Related links.
- You can deploy a IBM Storage Scale Client without deploying the IBM Storage Scale shared service. For more information, see the Related links.
- IBM Storage Scale Clients can also be configured to point to an external IBM Storage Scale Server that is deployed outside of Cloud Pak System. At deployment time, the IBM Storage Scale Client provides the IP address for the main external IBM Storage Scale Server, and runs a set of script packages to set up communication with the external IBM Storage Scale Server.
- The IBM Storage Scale Client Policy supports
application components in both virtual system patterns and virtual application patterns. When added
to a pattern component, at deployment time the IBM Storage Scale product is installed on the virtual
machine, the configuration is retrieved from the shared service or the policy attributes, and the
client is connected to shared file systems that are hosted by the deployed IBM Storage Scale Server pattern.
The IBM Storage Scale Client Policy also incorporates management operations available through the Instance Console in Cloud Pak System. Administrators can mount multiple file systems after deployment, check the file system health, and reconnect to the same or a different IBM Storage Scale Server. Reconnecting is needed when a failover occurs and the IBM Storage Scale Mirror or IBM Storage Scale Passive configuration takes over as the IBM Storage Scale Primary configuration. The client can also use the Connect to Server operation to attach to a different server's shared file system.
Note: If the client is using the IBM shared service for IBM Storage Scale to connect to the IBM Storage Scale Server, the client must perform the reconnect operation (by using the Connect to Server operation) any time that the IBM shared service for IBM Storage Scale is redeployed and points to a new IBM Storage Scale Server instance. In the case of a failover, the IBM Storage Scale Clients must wait for the shared service to redeploy with new information, then try to reconnect to the new configuration. - IBM Storage Scale Client script packages provide an alternative method of connecting IBM Storage Scale Clients to IBM Storage Scale Servers, other than using the IBM Storage Scale Client Policy. This option is available for use with virtual system patterns and classic virtual system patterns, and gives you more control over when the IBM Storage Scale Client code is run as part of your deployment. For more information about these script packages, see the Related links.