Promise Technology Smartstor NS4600 User Manual

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Chapter 6: Technology Background
• Introduction to RAID (below)
• Choosing a RAID Level (page 300)
• Spare Drive (page 301)
• Automatic Rebuilding (page 302)
• Partition and Format (page 302)
• RAID Volume Migration (page 303)
Introduction to RAID
RAID (Redundant Array of Independent Disks) allows multiple disk drives to be
combined together into a RAID Volume. You create a RAID Volume on your
SmartStor when you perform the setup procedure, either in SmartNAVI or the
PASM Setup Wizard.
The benefits of a RAID can include:
• Higher data transfer rates for increased server performance
• Increased overall storage capacity for a single Volume
• Data redundancy/fault tolerance for ensuring continuous system operation in
the event of a disk drive failure
Different RAID levels use different organizational models and have varying
benefits. Also see “Choosing a RAID Level” on page 300. The following outline
breaks down the properties for each RAID level supported on the SmartStor:

Promise Technology Smartstor NS4600 Specifications

General

RAID levels	0, 1, 5, 10
Storage drive size	3.5 \
Hot-swap drive bays	Yes
Storage drive capacity	0 GB
Supported file systems	EXT3, FAT32
Storage drive interface	Serial ATA II
Total installed storage capacity	0 TB
Number of storage drives installed	4
Internal memory	0.25 GB
Processor model	-
Processor frequency	0.6 GHz
Maximum data transfer rate	1000 Mbit/s
Supported network protocols	FTP, DHCP, NTP
Compliance industry standards	IEEE 802.3i, IEEE 802.3ab, IEEE 802.3u
Certification	RoHS, CE, FCC, UL, TUV
Data transfer rate	3 Gbit/s
Dimensions (WxDxH)	152.5 x 229.6 x 188.2 mm
Power requirements	100 - 230 V/50-60 Hz
Networking features	Gigabit Ethernet
Compatible operating systems	Windows 2000/XP/2003/Vista Mac x 10.4 + Linux
USB 2.0 ports quantity	2
Ethernet LAN (RJ-45) ports	1
Power supply unit (PSU) capacity	90 W
Operating temperature (T-T)	5 - 35 °C
Operating relative humidity (H-H)	10 - 85 %

Weight and Dimensions

Weight	2500 g