Configuring custom-sized provisioning

Configuring custom-sized provisioning involves creating and configuring custom-size volumes (CVs). CVs are created by dividing a fixed-sized volume (FV) into several smaller volumes of arbitrary sizes.

Parent Topic

• Provisioning

  The advanced provisioning software products and features of the storage systems enable you to implement the appropriate provisioning strategies for your operational environment and improve performance and capacity utilization. Dynamic Provisioning allows you to reserve virtual storage capacity based on anticipated future capacity needs using virtual volumes instead of physical disk capacity, providing lower initial cost, greater efficiency, and ease of storage management.

Child Topics

• Spare drives and copy-back mode

  Spare drives are mounted separately from the data drives for usual write and read operation. If a failure occurs in a data drive, data is copied to a spare drive so that the storage system can continue to be available.

• Virtual LUN functions
• Virtual LUN requirements
• Virtual LUN specifications
• Virtual LUN size calculations
• Enabling accelerated compression

  Use this procedure to enable accelerated compression on a parity group.

• Disabling accelerated compression
• Parity groups and volumes

• Configuration of interleaved parity groups
• Managing parity groups

  Describes the procedures for creating, formatting, and deleting parity groups.

• Create LDEV function

  Use the Create LDEV function of Virtual LUN to create a custom-size volume (CV).

• Blocking LDEVs

  Use this procedure to block internal and external volumes (LDEVs). A volume must be blocked before you can format it or shred it.

• Blocking LDEVs in a parity group
• Restoring blocked LDEVs
• Restoring blocked LDEVs in a parity group
• Editing an LDEV name
• Deleting an LDEV (converting to free space)
• Formatting LDEVs

  If you initialize LDEVs that are being used, you will need to format the LDEVs.

• Assigning an MP unit