HP P4000 G2 Configuring data storage, Storage management utilities, Array management utilities

Configuring data storage

The HP StorageWorks P4000 G2 Unified NAS Gateway is configured only for the operating system. The administrator must configure data storage for the storage system.

Configuring additional data storage involves creating arrays, logical disks, and volumes. Table 5 shows the general task areas to be performed as well as the utilities needed to configure storage for an HP Smart Array-based storage system.

Table 5 Tasks and utilities needed for storage system configuration

Task	Storage management utility
Create disk arrays	HP Array Configuration Utility
Create logical disks from the array space	HP Array Configuration Utility
Verify newly created logical disks	Windows Disk Management
Create a volume on the new logical disk	Windows Disk Management

•Create disk arrays—On storage systems with configurable storage, physical disks can be arranged as RAID arrays for fault tolerance and enhanced performance, and then segmented into logical disks of appropriate sizes for particular storage needs. These logical disks then become the volumes that appear as drives on the storage system.

CAUTION:

The first two logical drives are configured for the storage system operating system and should not be altered in any manner. If the first two logical drives are altered, the system recovery process may not function properly when using the System Recovery DVD. Do not tamper with the “DON’T ERASE” or local C: volume. These are reserved volumes and must be maintained as they exist.

The fault tolerance level depends on the amount of disks selected when the array was created. A minimum of two disks is required for RAID 0+1 configuration, three disks for a RAID 5 configuration, and four disks for a RAID 6 (ADG) configuration.

•Create logical disks from the array space—Select the desired fault tolerance, stripe size, and size of the logical disk.

•Verify newly created logical disks—Verify that disks matching the newly created sizes are displayed.

•Create a volume on the new logical disk—Select a drive letter and enter a volume label, volume size, allocation unit size, and mount point (if desired).

Storage management utilities

The storage management utilities preinstalled on the storage system include the HP Array Configuration Utility (ACU).

Array management utilities

Storage devices for RAID arrays and LUNs are created and managed using the array management utilities mentioned previously. For HP Smart Arrays use the ACU.

68 File server management