View SAN LUN, Data Protection Tab, Auto Tier

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Displays the data replication schedules of a logical volume.

Storage Domain Capacity

Displays the storage capacity of the selected storage class and Storage Domain that is available for the logical volume. The graph uses colored bars of different thicknesses to indicate the capacity status of the logical volume you are creating as well as the overall system capacity.

Capacity for Clones

Enable Clones

Indicates whether the Capacity for Clones option is set.

Maximum capacity

Specifies the percentage of storage space to allocate for Clone LUNs.

Current Maximum Capacity

Identifies the maximum capacity to which the logical volume can grow. For a clone, this field identifies how much addressable space is available. Capacity must be greater than or equal to the allocated logical capacity.

Current Available Capacity

Identifies the amount of current storage capacity allocated for clones of this LUN.

Number of Clones (of this clone)

Identifies the number of clones that have been created for this LUN.

Number of Clones (total)

Identifies the number of clones that have been created for this LUN and its clones.

Clone Storage QoS

Match Repository QoS to LUN QoS

Specifies whether to apply the clone storage QoS properties using a Data Protection schedule, or manually applied by the administrator.

Indicates the QoS settings that are applied to the logical volume.

Initial Storage Class

Indicates the category of physical media on which the logical volume resides.

Valid media types:
Performance SSD

Specifies that the data is stored on solid state drives (SSDs) that are optimized for the performance of balanced read and write operations.

Capacity SSD

Specifies that the data is stored on SSDs that are optimized for the performance of capacity and for read operations. The write performance for this Storage Class is sacrificed somewhat to achieve the optimizations for read performance and for capacity.

Performance Disk

Specifies that the data is stored on high-speed hard disk drives (HDDs). This Storage Class sacrifices some capacity to reduce the access time and the latency of the read operations and of the write operations.

Capacity Disk

Specifies that the data is stored on high-capacity, rotating HDDs. This Storage Class optimizes capacity at some sacrifice of speed. For a storage system that does not include tape storage as an option, this Storage Class always provides the lowest cost for each GB of capacity.

Basic
Initial Typical Access
Identifies the most common method of data access. Valid biases:
Sequential

Indicates that the read requests and the write requests operate on the data mostly by accessing the records one after the other in a physical order.

Random

Indicates that the read requests and the write requests operate on the data mostly by accessing the records in an arbitrary order.

Mixed

Indicates that the read requests and the write requests operate on the data sometimes in sequential order and sometimes in random order.

Initial I/O Bias
Identifies the typical read‑write ratio. Valid I/O biases:
Read

Indicates that most of the access requests are for read operations.

Write

Indicates that most of the access requests are for write operations.

Mixed

Indicates that the number of access requests are similar for read operations and for write operations.

Advanced
Initial RAID Level

Identifies the RAID level associated with the Storage Profile.

Possible RAID levels:
Single parity

Indicates that, in addition to the actual data, one set of parity bits exists for the logical volume. This parity level protects against the loss of one drive. Single parity is implemented as a variant of the RAID 5 storage technology.

Double parity

Indicates that, in addition to the actual data, two sets of parity bits exist for the logical volume. This parity level protects against the loss of one or two drives with a slight cost to write performance. Double parity is implemented as a variant of the RAID 6 storage technology.

Mirrored

Indicates that no parity bits exist for the volume. Instead, the system writes the data in two different locations. This RAID level protects against the loss of at least one drive and possibly more drives with an improvement of the performance of random write operations. Mirrored RAID is implemented as a variant of the RAID 10 storage technology.

Clone Schedules

Lists the data protection schedules that are associated with the logical volume.

Name

Identifies the name of the schedule.

Start Time

Identifies the date and time that the schedule begins.

Frequency
Identifies the frequency at which the schedule runs. Frequencies include:
  • Run Once
  • Hourly
  • Daily
  • Weekly
Enabled
Identifies whether the schedule is enabled.
Enabled

Indicates that the scheduled operation performs at the specified time.

Disabled

Indicates that the operation is not performed as scheduled. Disable the schedule, for example, when the source volume (LUN or Clone LUN) has not been made available to users.

Create

Displays a dialog to create a scheduled operation.

Modify

Displays a dialog to modify an existing schedule.

Delete

Removes an existing schedule.