APC iSCSI SATA II Rebuilding purpose, Spare disks out from the common spare disks pool for such

DS	Dedicated Spare disks. The spare disks are only used by one specific
	RG. Others could not use these dedicated spare disks for any
	rebuilding purpose.
GS	Global Spare disks. GS is shared for rebuilding purpose. If some RGs
	need to use the global spare disks for rebuilding, they could get the
	spare disks out from the common spare disks pool for such
	requirement.
DC	Dedicated Cache.
GC	Global Cache.
DG	DeGraded mode. Not all of the array’s member disks are
	functioning, but the array is able to respond to application read and
	write requests to its virtual disks.
SCSI	Small Computer Systems Interface.
iSCSI	Internet Small Computer Systems Interface.
FC	Fibre Channel.
S.M.A.R.T.	Self-Monitoring Analysis and Reporting Technology.
WWN	World Wide Name.
HBA	Host Bus Adapter.
SAF-TE	SCSI Accessed Fault-Tolerant Enclosures.
SES	SCSI Enclosure Services.
NIC	Network Interface Card.
MPIO	Multi-Path Input/Output.
MC/S	Multiple Connections per Session
MTU	Maximum Transmission Unit.
CHAP	Challenge Handshake Authentication Protocol. An optional security
	mechanism to control access to an iSCSI storage system over the
	iSCSI data ports.
iSNS	Internet Storage Name Service.

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