HP 2000sa manual Family Information, Sas

QuickSpecs

HP StorageWorks 2000sa Modular Smart Array

Family Information

	MSA2000sa	MSA2000fc	MSA2000i	EVA4400
Capacity (raw)	3.6TB SAS or 12TB SATA	3.6TB SAS or 12TB SATA	3.6TB SAS or 12TB SATA	3.6TB FC or 12TB FATA
Minimum / with maximum	w/ 3 enclosures:	w/ 3 enclosures:	w/ 3 enclosures:	w/ 8 enclosures
additional drive	14.4TB SAS or 48TB	14.4TB SAS or 48TB	14.4TB SAS or 48TB	43TB FC or 96 TB FATA
enclosures	SATA	SATA	SATA
Controller Cache	1GB per controller	1 GB per controller	1 GB per controller	2 GB per controller
Host connect	Two 3Gb	Two 4Gb	Two 1GbE	Two 4Gb
MSA2000 has 1 or 2	SAS ports	Fibre Channel ports	iSCSI ports	Fibre Channel ports
controllers, EVA has 2	per controller	per controller	per controller	per controller
controllers standard
Maximum Drives	48	48	48	96
Maximum host supported	4	64	16	512
Snapshot, remote	Snapshot, clone	Snapshot, clone	Snapshot, clone	Snapshot, clone,
replication				remote data replication
Use for Storage	Primary Storage with SAS	Primary Storage with SAS	Primary Storage with SAS	Primary Storage with
	Secondary with SATA	Secondary with SATA	Secondary with SATA	Fibre Channel Secondary
				with FATA

*maximum available storage capacity depends on the RAID level being implemented, and is based on maximum number of LUNs and LUN size

Product Technology	SAS	Two 3Gb host ports per controller
	Modular Chassis	2U, 12 Large Form Factor drive bays, accommodating MSA2 SAS and SATA
		hard drives (MSA2000-specific). Comes standard with one or two controllers.
	Drives available	Serial Attached SCSI (SAS) enterprise-class drives designed for high volume,
		24x7 usage. Serial-ATA (SATA) are usually reserved for archival of data as
		they are both relatively inexpensive and are available in very large capacities.
		The MSA2000 family of arrays can accommodate both SAS and SATA drives
		within the same enclosure making it ideal to have both business-critical, high
		activity files on SAS drives while using snapshot or clone capability to keep
		back-up data on the less expensive drives. SAS drive performance can be
		approximately 30%greater than SATA performance on sequential host IO.
		SAS performance excels in sequential lower latency response time and
		random IO per second transaction performance due to higher rpm disk
		speeds yielding lower seek times.
		NOTE: MSA2 3.5 inch Large Form Factor (LFF) drives are for use only in the
		MSA2000 family.
	Scalability	Up to 3.6TB SAS or 12TB SATA, expandable to 14.4TB SAS or 48TB SATA
		with the addition of a maximum of three MSA2000 3.5 inch Disk Enclosures.
	LUNs	The MSA2000 family of arrays supports 256 LUNs and LUN sizes up to
		16TB. The arrays support LUN expansion and deletion of any LUN.
	RAID 0, 1, 3, 5, 6, 10, In addition to the usual RAID levels, the MSA2000 family features several
	50	important additional levels. RAID 6 is the highest level of RAID protection. It
		allocates two sets of parity data across drives and allows simultaneous write
		operations. It can withstand two simultaneous drive failures without downtime
		or data loss. RAID 10 is mirroring and striping without parity. It is the most
		popular of the multiple RAID levels, allowing large arrays with high
		performance in most cases and superior fault tolerance. RAID 50 combines

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