Array Analysis (Configured Capacity Metrics) in Veritas Operations Manager Enterprise Server 5.0

Article:HOWTO77599  |  Created: 2012-08-10  |  Updated: 2012-09-05  |  Article URL http://www.symantec.com/docs/HOWTO77599
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Array Analysis (Configured Capacity Metrics) in Veritas Operations Manager Enterprise Server 5.0

The Configured Capacity Metrics are part of the Veritas Operations Manager Enterprise Server Array Analysis reporting package.

See Array Analysis in Veritas Operations Manager Enterprise Server 5.0 .

The Configured Capacity Metrics provide details about allocated and unallocated storage capacity on an array.

Table: Array Analysis (Configured Capacity Metrics)

Metric

Description

Total Allocated Capacity (GB)

The complete amount of storage that the array has allocated both to virtualizers as well as directly to hosts.

  • Capacity Allocated to Hosts Directly (GB) - The amount of configured array storage (internal or external) that is allocated to hosts directly (i.e., not through a virtualizer).

  • Capacity Allocated to Hosts Through Virtualizer (GB) - The amount of configured array storage (internal or external) that is allocated to a host through a virtualizer.

  • Capacity Available to Hosts Through Virtualizer (GB) - The amount of configured array storage (internal or external) that is allocated to a virtualizer but that has not yet been allocated to a host.

Capacity Reserved for Overhead (GB)

The configured array storage that is reserved for RAID overhead and other administrative uses. This amount is a combination of RAID Overhead Capacity (GB), Replication Capacity (GB) and Administrative Capacity (GB).

  • RAID Overhead Capacity - The amount of configured storage that is set aside by the array for RAID techniques such as mirroring and striping. Veritas Operations Manager calls this amount "Logical: Overhead."

  • Replication Capacity (GB) - The amount of configured storage that is set aside for maintaining replication techniques such as snapshot reserves and WAFL. Veritas Operations Manager calls this amount "Logical: Replication."

  • Administrative Capacity (GB) - The amount of configured storage that is set aside by the array for administrative uses, not including RAID overhead. In snapshot or replication scenarios, this value includes target LUNs for storing copied or replicated data. Veritas Operations Manager calls this amount "Logical: Administrative."

Capacity Available for Allocation (GB)

The configured array storage that is currently not yet in use. This amount is a combination of Unallocated LUN Capacity (GB) and Available Configured Capacity.

  • Unallocated LUN Capacity (GB) - The amount of configured storage that has been "carved into LUNs" and yet these LUNs are not associated with any host . Veritas Operations Manager calls this amount "Logical: Unallocated."

  • Available Configured Capacity (GB) - The amount of configured storage that has been formatted but not yet carved into LUNs. Veritas Operations Manager calls this amount "Logical: Available."

Undiscovered Configured Capacity (GB)

The configured array storage which Veritas Operations Manager has not discovered. Veritas Operations Manager calls this amount "Logical: Unknown."

% Configured Capacity Allocated

The percentage of configured array storage that is allocated to either hosts or virtualizers. This value is calculated by dividing Total Allocated Capacity (GB) by Configured Capacity (GB).

% Configured Capacity Reserved for Overhead

The percentage of configured array storage that is reserved for RAID, replication, and other administrative uses. This value is calculated by dividing Capacity Reserved for Overhead (GB) by Configured Capacity.

% Configured Capacity Available for Allocation

The percentage of configured array storage that is not in use but is available for allocation. This value is calculated by dividing Capacity Available for Allocation (GB) by Configured Capacity (GB).

% Configured Capacity Undiscovered

The percentage of configured array storage that is not known because Veritas Operations Manager is not able to discover it. This value is calculated by dividing Undiscovered Configured Capacity (GB) by Configured Capacity (GB)

Total Allocated Capacity Detail Metrics

These metrics provide details on how allocated and available capacity is distributed to hosts:

  • Capacity Allocated to Hosts Directly (GB)

  • Capacity Allocated to Hosts Through Virtualizer (GB)

  • Capacity Available to Hosts Through Virtualizer (GB)

Total Allocated Capacity Detail Metrics (Thin Aware)

These metrics provide the following details:

  • Capacity Allocated to Hosts Directly (GB)

    The amount of configured array storage (internal or external) that is allocated to hosts directly, and not through a virtualizer, including storage from the thin LUNs' consumed size.

  • Capacity Allocated to Hosts Through Virtualizer (GB) (Thin Aware)

    The amount of configured array storage (internal or external) that is allocated to a host through a virtualizer , including storage from the thin LUNs' consumed size.

  • Total Allocated Capacity (GB) (Thin Aware)

    The amount of storage that an array has allocated both to virtualizers and directly to hosts, including storage from the thin LUNs' consumed size.

Capacity Reserved for Overhead Detail Metrics

These metrics provide details on the specific purposes for which the capacity reserved for overhead is allocated:

  • RAID Overhead Capacity (GB)

  • Replication Capacity (GB)

  • Administrative Capacity (GB)

Capacity Available for Allocation Detail Metrics

These metrics provide the following status information on the configured storage capacity that is available for allocation:

  • Unallocated LUN capacity (GB)

  • Available Configured Capacity (GB)

See About packages and namespaces in Veritas Operations Manager Enterprise Server 5.0

See Report schema definitions (Cognos metamodel) in Veritas Operations Manager Enterprise Server 5.0


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