Disk Group Alignment

One of the attributes of the disk group is the block alignment, which represents the largest block size supported by the disk group. The alignment constrains attributes of the objects within the disk group, such as:

• Subdisk; how subdisks are positioned on the drive (offset), and their size granularity (length)
• Plex offset
• Volume length
• Log length
• Stripe width

The disk group alignment is assigned at disk group creation time (see Maintaining Your System).