4 Automatic Storage Management Compliance Standards

These are the compliance rules for the Automatic Storage Management (ASM) compliance standards. The compliance standards are:

Storage Best Practices for ASM
Patchable Configuration for ASM

4.1 Storage Best Practices for ASM

The compliance rules for the Storage Best Practices for ASM compliance standard follow.

4.1.1 Disk Group with NORMAL or HIGH Redundancy Has Mirrored or Parity Protected Disks

Description: Checks the disk group, with NORMAL or HIGH redundancy, for disks that are mirrored or parity protected.

Severity: Minor Warning

Rationale: Disk resources are wasted, and performance may be unnecessarily affected when both a disk and its owning disk group are providing data redundancy.

4.1.2 Disk Group Depends on External Redundancy and Has Unprotected Disks

Description: Checks the disk group, which depends on external redundancy, for disks that are not mirrored or parity protected.

Severity: Warning

Rationale: Data loss can occur if the disk group depends on external redundancy and disks are not mirrored or parity protected.

4.1.3 Disk Group Contains Disks with Different Redundancy Attributes

Description: Checks the disk group for disks that have different redundancy attributes.

Severity: Warning

Rationale: Disks in the same disk group with different redundancy attributes may offer inconsistent levels of data protection.

4.1.4 Disk Group Contains Disks of Significantly Different Sizes

Description: Checks the disk group for disks with disk sizes which vary by more than 5%.

Severity: Warning

Rationale: Disks in a disk group should have sizes within 5% of each other, unless data migration is in progress. Automatic Storage Management distributes data uniformly proportional to the size of the disks. For balanced I/O and optimal performance, disks in a given disk group should have similar size and performance characteristics.

4.2 Patchable Configuration for ASM

The compliance rule for the Patchable Configuration for ASM compliance standard follows.

4.2.1 Patchability

Description: Ensures the ASM target has a patchable configuration.

Severity: Warning

Rationale: Unpatchable ASM target could not be patched by using the provided Enterprise Manager Patching feature.