EMC Disk Group

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Attributes

Name

Description

Units

Recommended Alert Conditions

Attribute Type

Consumed Capacity Percentage

Percentage of the disk group that is actually allocated or reserved.

Percentage (%)

None

Statistics

Consumed Capacity

Number of bytes actually consumed in the disk group.

Terabytes (TB)

None

Statistics

Oversubscription Situation*

This metric reports an oversubscription situation, that is when:

1.The disk group is configured for thin provisioning
2.The disk group is oversubscribed, i.e. the total disk space visible to the hosts (subscribers) is greater than its actual capacity (this situation is normal for a thin pool since it is its very purpose)
3.The storage actual consumed capacity is higher than 75%

{0 = No; 1 = Yes}

Alarm = 1

Statistics

Read Byte Rate

Bytes read per second from the disk group since the last collect.

Megabytes per second (MB/s)

None

Statistics

Spare Disk Count

Number of spare disks available in the group.

Disks

Warning = 0

Statistics

Subscribed Capacity Percentage

Percentage of the disk group that is subscribed.

 
Note: This attribute can exceed 100 % for thin provisioned storage pools.

Percentage (%)

None

Statistics

Subscribed Capacity

Total host visible capacity.

Terabytes (TB)

None

Statistics

Transfer Byte Rate*

Total bytes transferred per second (sent and received).

Megabytes per second (MB/s)

None

Statistics

Write Byte Rate

Bytes written per second to the disk group since the last collect.

Megabytes per second (MB/s)

None

Statistics

* Attributes marked with an asterisk are used by default when visualizing the corresponding monitor instance in TrueSight Operations Management.