vs

General

Manufacturer Drobo NETGEAR
Model DRDR4A21 RNDP4420-100NAS
Lowest Price $609.99 Compare Drobo DRDR4A21 prices $2,310.99 Compare NETGEAR RNDP4420-100NAS prices
Warranty 2 years limited 5 years limited

Ports

RJ45 Ports 1 x 10/100/1000M 2 x 10/100/1000M
USB Ports 1 x USB 2.0 (type A) 3 (1 front, 2 rear)
eSATA Ports Yes No
Other Ports 1 VGA (recovery only) HDMI, Composite Video, Optical Audio

Storage

Drive Bays 2 4
Hard Disk Interface 2 x SATA 4 x SATA
Hard Disk Size 4TB 8TB (4x2TB) Unified
Rotational Speed 7200RPM 7200RPM

Features

World\'s Most Expandable USB 3.0 Array

BeyondRAID Technology

Protection from Two Drive Failures

Self-Healing Technology

Storage Capacity: 10TB Maximum

Drives: Accommodates from one to five 3.5" SATA I / SATA II hard drives of any manufacturer, capacity, spindle speed, and/or cache. No carriers or tools required.

Power:
Idle system (standby, drives off) = 12 watts
Typical busy system (four drives) = 56 watts

File System Options
Windows: NTFS
Mac OS X: HFS+
Cross-Platform: FAT32
Linux: EXT3

Operating System Support:
Windows 2008 Server
Windows 2003 Server
Windows XP
Windows Vista
Windows 7
Mac OS 10.5 or higher
Linux* using EXT3

*Linux support currently in Beta
Ideal virtualization platform for smaller locations

A cost-effective backup to disk solutions for remote offices

Hybrid cloud support for online archive, file sharing and managed services

Cross-platform file sharing support for Windows, Macintosh, and UNIX/Linux systems

Optional multi-site file replication tools with centralized management

Unified architecture for simultaneous SAN and NAS support

Complete 3rd party backup software compatibility for physical, virtual and mixed environments

Included Backup Software/option
- Support of Symantec Backup Exec agent (RALUS license required)
- Acronis ABR10 Virtualization Edition and Advanced Workstation Edition (unlimited license free for 90-days with registration)
- ReadyNAS Replicate Secure replication software with online unified management (single license free for 45-days with registration)
- ReadyNAS Vault cloud-based online backup with 100 GB capacity free for 1-year

For the Hard drives compatibility, please go to http://www.readynas.com/?page_id=82

Warning:
The firmware that is needed for Netgear NAS products to be compatible with 3TB drives (assuming it did not come with a 3TB drive) is RAIDiator 4.2.17. For more details, please go to this link below to download this software.
http://www.readynas.com/index.php?s=3TB+support

Please visit the following link to get the latest software for your ReadyNAS product.
http://www.readynas.com/?p=5568

Form Factor

Dimensions 10.3" x 7.3" x 5.9" 8.78" x 8.07" x 5.28"
Weight 5.8 lbs. lbs 10.35 lbs. lbs
Form Factor 3.5" 4-bay Desktop

Networking

Data Link Protocol
Network Interface Controller
DLNA Certified No No

Hardware

Standards IEEE 802.3, IEEE 802.3u, IEEE 802.3ab RS810+
Supported Protocols File Server: SMB, AFP, FTP, HTTP, HTTPS
Others: Apple Bonjour, BitTorrent, NTP, DHCP, Apipa
CIFS/SMB for Windows
AFP 3.1 for Mac OS 9/X
NFS v2/v3 for Linux and UNIX
HTTP/S for Web browsers
FTP/S
IPv6
Rsync and secure rsync
WebDAV
iSCSI target support for Windows, Mac and UNIX/Linux initiators
Processor Intel Atom D510 1.66GHz (Dual Core) 1.66 GHz Intel Atom Dual Core Processor
Memory RAM: 1GB DDR II
Flash: 512MB
1GB DDR2 SODIMM
RAID RAID 0, 1 X-RAID2 automatic single volume online expansion

Multiple volume support for RAID 0, 1, 5 Background sync and Smart Sync resume

Life support mode

Hot swappable disks

Hot spare disk support
LEDs Status, LAN, USB, eSATA, HDD Power / status LEDs LCD display
Power AC Input 100-240V, 50-60Hz, Energy Star V Rated Electrical: 120W server-rated AC power supply, Input 100 - 240V AC, 50/60Hz

Power Consumption
Temperature 0°C - 40 °C 0°C - 40 °C
Humidity 0-95% RH (non-condensing) 20-80% Humidity (non-condensing)

Software

Operating System Latest version of Windows XP, Windows Vista, Windows Vista 64-bit, Windows 7 / Mac OS X 10.4, 10.5, 10.6 / Linux 2.6 NETGEAR RAIDiator Operating System
Management Internet Explorer v6 or other Java-enabled Browsers
5 Different Hard Drive Configurations
Scandisk
E-mail Alerts
Drive Quotas
Power Management
Volumes:
Advanced volume management (Flex-RAID)
Journaling file system
User and group quotas

Network Security Modes:
Shares
Local users
Active Directory/Windows Domain support
Encrypted network logins
Secure Sockets Layer (SSL)
CHAP authentication for iSCSI LUN

Network Services:
DHCP or static IP address assignment
DHCP Server
WINS Server
NTP server synchronization
VLAN and LACP support for load balancing and failover

System Management:
Performance tuning options
Device health status
System configuration backup and restore
Email alerts and event logs
Network UPS monitoring
SNMP

Backup Schema:
Client backup target using CIFS, NFS, FTP or HTTPS
Integrated Backup Manager for full and incremental ReadyNAS backups
Snapshot support for point-in-time backups of the ReadyNAS system
Backup to/from USB disks
Remote backup to CIFS, NFS, FTP and HTTPS targets
Remote backup to another ReadyNAS via rsync and secure rsync
System configuration backup and restore
Multi-system cloning

find similar nas

discussionWhich do you think is better?

Speech is free, but discussion at NASReview is moderated! Please discuss your opinion of these network attached storages here.