HP StoreAll Storage - Manual (Page 21)

3 StoreAll 9320 storage provisioning
Definitions
Table 10 Terms and definitions
Definition Term
A Vdisk is a set of one or more physical disk drives forming a RAID group that serve as
backup storage for one or more volumes. Vdisk
A volume can be viewed as a logical partition of a Vdisk. The RAID level of the volume
is the RAID level of the Vdisk. Volume
A spare is a disk drive that has been assigned to provide fail-over storage for a failed
drive in a Vdisk. The controller automatically reconstructs a redundant (fault-tolerant) Spare
Vdisk when one or more of its disks fail and a compatible spare disk is available. A
compatible disk has enough capacity to replace the failed disk and is the same type
(SAS or SATA). The SPT tool supports addition and deletion of global-spares. A
global-spare is reserved for use by any redundant Vdisk to replace a failed disk.
Storage configurations
Supported hard drives
Table 11 Supported hard disk drives
Type Form factor Drive size
MDL-SAS LFF 1 TB
MDL-SATA LFF 1 TB
MDL-SAS LFF 2 TB
MDL-SAS LFF 3 TB
ENT-SAS SFF 300 GB
ENT-SAS LFF 450 GB
ENT-SAS LFF 600 GB
ENT-SAS SFF 900 GB
Storage layout
The storage layout for HP StoreAll 9320 Network Storage Systems are predefined and preconfigured
for customers. StoreAll 9320 supports the following predefined storage configuration layout.
Table 12 (page 21) provides a comparison between these configurations.
Table 12 Storage layout
SFF ENT-SAS drives LFF ENT-SAS drives LFF MDL-SAS drives Features
RAID-5 RAID-5 RAID-6 RAID level
4 per kit 4 per kit 3 per kit Number of Vdisks
1 per kit 1 per kit 2 per kit Spares
alternate alternate alternate Vdisk controller
ownership
Definitions 21