HP StoreAll Storage - Manual (Page 8)

2 StoreAll 9730 storage provisioning
Definitions
Table 3 Terms and definitions
Definitions Terms
The HP 1210m storage controller is a PCIe-based RAID
controller available on each server node in a couplet and
operates in active-active pairs. HP 1210m storage controller
The MDS600 is a storage enclosure that can host 70 disk drives
within its two disk drawers. MDS600
A pool is a set of one or more physical disk drives that serve
as backing storage for one or more RAID volumes. The capacity Pool
of a pool is the combined capacity of all physical disk drives
that form that pool.
A volume can be viewed as a logical partition of a pool. A
volume is created with one or more disks from a given pool Volume
and bounded by a RAID level. The number of drives in a volume
should match RAID-level requirements.
A spare is a disk drive that has been assigned to provide
fail-over storage for one or more volumes in one or more pools. Spare
If a volume experiences an unrecoverable I/O error on a disk
member in its RAID set, the RAID controller searches through
the list of spares previously assigned to that volume and
automatically selects an unused spare to preserve the RAID
level of the volume. The HP 1210m RAID controller treats all
spares as global spares.
Storage configurations
Hard disk drive configuration
Table 4 Supported hard disk drives
Type Form factor Drive size SKU
MDL-SAS LFF 2 TB QZ730A
MDL-SAS LFF 3 TB QZ731A
Storage layout
The storage layouts for the 9730 are preconfigured for customers and support the following
predefined storage configurations:
•
Balanced capacity configuration (default)
•
Maximum capacity configuration
•
Performance configuration
Table 5 (page 8) provides a comparison between these configurations.
Table 5 Storage layout
Performance Maximum capacity Balanced capacity Features
63% 74% 71% Capacity utilization
RAID-6 RAID-6 RAID-6 RAID level
8 StoreAll 9730 storage provisioning