Explanation/Reference:
Explanation:
Stripe column and stripe width are two important attributes that can be specified for a volume determining how space is allocated for a volume and how space is allocated within a volume after ACFS or third party file system is created on a volume and a file is created or extended on the file system built on that volume. Both attributes are specified at volume creation time and cannot be changed later. If there is no value a default value is used.
Volume Allocation Unit (VAU) is the smallest allocation for a volume. Whenever a volume is created or extended space is allocated in multiple of VAU. VAU size is determined by the Volume Extent (VE) and the stripe column. VAU is the product of VE and the stripe column.
Volume Extent is based on the Allocation Unit (AU) specified on a disk group and for AU with size of 1MB the VE is 64MB. Whenever a VAU is allocated VE are allocated in a round robin fashion across the disks in a disk group. Volume size is always multiple of the VAU. For example if a volume is requested with size
200MB and stripe column is 4 and AU is 1MB one VAU with size 256MB will be allocated and the volume size will be 256MB