User manual

INTRODUCTION
12
1.3 RAID Concept
1.3.1 RAID Set
A Raid Set is a group of disk containing one or more volume sets.
It has the following features in the SATA RAID controller. A volume
Set must be created either on an existing raid set or on a group of
available individual disks (disks that are not yet a part of an raid
set). If there are pre-existing raid sets with available capacity and
enough disks for specified RAID level desired, then the volume
set will be created in the existing raid set of the user’s choice. If
physical disk of different capacity are grouped together in a raid
set, then the capacity of the smallest disk will become the effective
capacity of all the disks in the raid set.
1.3.2 Volume Set
A Volume Set is seen by the host system as a single logical device.
It is organized in a RAID level with one or more physical disks.
RAID level refers to the level of data performance and protection of
a Volume Set. A Volume Set capacity can consume all or a portion
Internal PCI-Express RAID Card Comparison (ARC-XXXX)
1210 1220 1230 1260
Host Bus Type PCI-Express X8
RAID 6 support N/A YES YES YES
Cache Memory 128MB 128MB One SODIMM One SODIMM
Drive Support 4 * SATA ll 8 * SATA ll 12 * SATA ll 16 * SATA ll
Disk Connector SATA SATA SATA SATA
Internal PCI-X RAID Card Comparison (ARC-XXXXML)
1110ML 1120ML 1130ML 1160ML
Host Bus Type PCI-X 133MHz
RAID 6 support N/A YES YES YES
Cache Memory 128MB 128MB One SODIMM One SODIMM
Drive Support 4 * SATA ll 8 * SATA ll 12 * SATA ll 16 * SATA ll
Disk Connector SATA/Multi-lane SATA/Multi-lane SATA/Multi-lane SATA/Multi-lane