Configuring the Content Verification service

The Content Verification service regenerates cryptographic hash values to detect object corruption. Under certain circumstances, you might want to modify or disable this function to reduce the load on the system.

Before you begin

The circumstances when you might want to modify or disable the Content Verification service from regenerating cryptographic hash values include:

In a namespace that is not being replicated, has a service plan that sets the ingest tier DPL to 1, and does not define any additional storage tiers, only one copy of each object exists. Therefore, if the Content Verification service discovers a discrepancy in the cryptographic hash values for an object, it cannot repair the object from another copy.

You can choose to have the Content Verification service regenerate hash values only for objects that it could repair, if needed. With this option, the service does not regenerate hash values for objects in a namespace if HCP is configured to maintain only one copy of each object in that namespace.

Although the service cannot repair corrupt objects in this situation, it can report them. For this reason, if performance is not an issue, you might want to keep hash-value regeneration enabled for all objects.

When the load on the system is high, temporarily disabling all hash-value regeneration can provide some relief.

Procedure

1.In the top-level menu of the System Management Console, click Services > Content Verification. The Content Verification page opens.

2.Select the applicable Content Verification Mode option:

oTo configure the Content Verification service to regenerate hash values for all objects stored in the repository, regardless of the number of copies of each object that HCP must maintain in the repository, select Check all objects and repair if needed.

oTo configure the Content Verification service to regenerate hash values for a given object only when HCP is required to maintain multiple copies of that object in the repository, select Check only objects that can be repaired and repair if needed.

oTo disable the hash-value regeneration function, select Do not check and repair objects.

3.Click Update Settings.

If you selected the second or third option in the previous step, a confirm message is displayed. To confirm that you understand the consequences of your actions, select I understand. Then click Update Settings.

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