G-Technology 0G01868 warranty Appendix a, Raid

G-SPEED Product Guide

APPENDIX A

RAID
Level	Description	Advantage	Disadvantage	Ideal For…
0	Disk striping	Offers the highest	No fault tolerance -	Content creation
		performance and	failure of one drive	applications
		useable storage	in the array results
		capacity	in complete data
			loss
1	Mirroring	High level of fault	Not the most	Applications in
		tolerance	efficient in regards	which data
			to capacity as	security is
			useable storage	paramount
			space is cut in half
3	Disk striping	High level of		Content creation
	with	read/write		applications
	dedicated	performance, fault-		requiring high-
	parity drive	tolerant, disk		performance and
		failure has		data security
		insignificant impact
		on performance
5	Disk striping	High read	Disk failure results	File servers,
	with	performance,	in drop in	database
	distributed	medium write	performance	applications
	parity	performance, fault-
		tolerant
6	Disk striping	An extension of	Lower performance	Mission critical
	with dual-	RAID 5 with a	than RAID 3 or	data
	distributed	second	RAID 5
	parity	independent
		distributed parity
		scheme. High level
		of fault tolerance.
		Two drives in the
		array can fail
		without data loss.
JBOD	Just-a-	Each drive can be	No fault tolerance	Audio
	bunch-of-	accessed as an		applications
	disks	individual volume.

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