HP StoreVirtual 4000 Storage - Manual (Page 68)

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