Check category: Availability

Check description: Checks for temporary product license keys that are about to expire.

Check procedure:

• Identifies products with temporary license keys.

Check recommendation: Ensure that valid license keys are installed for Storage Foundation / InfoScale products.

Check category: Availability

Check description: Checks that SFHA Kernel modules loaded across all the nodes in a cluster are consistent

Check procedure:

• Identifies the SFHA Kernel modules loaded on all the nodes in a cluster.

Check recommendation: Ensure that SFHA Kernel modules loaded on all the nodes in a cluster are consistent. Inconsistent SFHA Kernel modules can cause errors in application fail-over.

Check category: Availability

Check description: This check compares the license key, license key type and license key version across cluster nodes and highlight any inconsistencies.This check does not currently compare the individual feature bits in the license keys. This can result in the following conditions: 1. The check does not currently distinguish between Standard- and Enterprise-level license keys for Storage Foundation for Oracle and Storage Foundation HA for Oracle. This can result in a check that passes even when the license key enablement is not identical. 2. The check does not currently detect whether VVR is license key enabled across all cluster nodes. This can result in a check that passes even when the license key enablement is not identical. 3. The check does currently distinguish between Storage Foundation + VCS, and Storage Foundation HA, even though the features enabled by the license keys are identical. This results in a check that fails even when the license key enablement is identical.

Check procedure:

• Identifies the license keys, license key types and license key versions installed on all the nodes in a cluster.

Check recommendation: Ensure that license keys, license key types and license key versions installed on all the nodes in a cluster are consistent. Inconsistent license keys, license key types and license key versions installed can cause errors in application fail-over.

Check category: Best practices

Check description: Verify whether the VRTSspt package is present on the system.

Check procedure:

• Checks whether the VRTSspt package is installed on the system.

Check recommendation: The VRTSspt package is not installed on the system. It is recommended to install the VRTSspt package, which provides time-saving troubleshooting tools. These tools do not run unless they are invoked by root.

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Check category: Performance

Check description: Checks whether the system is experiencing I/O waits (that is, blocked processes).

Check procedure:

• Collects the vmstat command output and determines the total number of processes blocked for I/O.

Check recommendation: Ensure that this system does not have one or more kernel threads/processes that are blocked for I/O resources. Narrow down the root cause using iostat or similar tools.