HP Surestore Disk Array 12h System Administrator's Guide for HP-UX, MPE, and W - Page 247

Using the ARM Command Line Utilities for Windows NT Managing Logical Drives Managing Logical Drives An important part of managing the disk array involves defining and maintaining the optimal logical drive structure for your system. Your system requirements and limitations will influence the logical drive structure you choose. Managing logical drives is a part of the overall task of managing disk array capacity. For more information on managing disk array capacity to meet your system needs, refer to the HP SureStore E Disk Array 12H User's and Service Manual. Checking Logical Drive Configuration When you are managing logical drives, you may find it convenient to check the current logical drive configuration and the available capacity. To check the current logical drive configuration and the available capacity, type: arraydsp -l [LUN] Creating a Logical Drive Only capacity assigned to logical drives is visible to the operating system. When selecting the size for your logical drives, consider the following factors: • Any size limitations imposed by the operating system. • Your backup strategy. If you do unattended backup to a device such as a tape, you may want to avoid creating a logical drive that is larger than the capacity of the tape media. This allows you to back up an entire logical drive without changing tapes. NOTE! Before creating a logical drive, check your operating system documentation for any additional information or steps that may be required to create a logical drive. To create a logical drive, type: arraycfg -L LUN -a Capacity LUN must be an unused value between 0 and 7 Capacity must be less than or equal to the currently available unallocated capacity 247 Windows NT