REO® 4500 & 4500c with Protection OS™
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A fast, flexible, and affordable disk-based backup and recovery appliance.
Fast
The Overland REO 4500 & 4500c disk-based backup and recovery appliance adds speed, reliability, and flexibility to any data protection environment. The REO 4500 features innovative Protection OS™ software that delivers volume and device virtualization, management, and connectivity capabilities. It also allows the REO to be easily enhanced via current and future software PAC options (e.g. Overland REO™ Multi-SitePAC™).
Flexible
It’s easy to configure the REO 4500 as virtual tape libraries and/or any mix of standalone virtual tape drives or disk volumes (LUNs) for maximum flexibility. Patent-pending Dynamic Virtual Tape (DVT) ensures that no storage capacity is wasted while eliminating the manual effort and guesswork of sizing, configuring, provisioning, and deleting virtual tape cartridges. With DVT, users can create virtual tape cartridges that automatically expand or shrink as needed to match the exact capacity requirements of the backup operation.
Expandable
The REO 4500 offers tremendous flexibility in capacity, ranging anywhere between 3TB and 27TB. Expansion is facilitated by adding economical SAS connected expansion arrays in 3TB, 6TB and 9TB configurations. Hardware compression effectively without affecting performance useable virtual tape capacity, giving the REO 4500c a total compressed capacity of 45 TB.
Simple
The REO 4500 is also easy to deploy and manage. It's compatible with all popular open systems or Windows-based backup software, physical tape drives, and libraries, and it connects easily to Ethernet (iSCSI) or Fibre Channel networks. A simple browser-based interface, proactive monitoring, and remote management capabilities combine to make REO 4500 easy and cost effective to manage.
Highlights
User definable as virtual tape libraries, standalone virtual tape drives and/or disk volumes (LUNs)
Includes REO Protection OS software
Dynamic Virtual Tape.
Supports Ethernet (iSCSI) and Fibre Channel connectivity
Includes RAID protection
Up to 36 TB raw capacity, 60TB useable compressed virtual tape capacity
Try our configurator to explore our range of
full system backup systems and storage options.

Learn More
REO® 4500 Datasheet
REO Family Brochure
Compatibility Matrix
REO 4500 Manual
Site Survey
Service ProgramsWhite Papers
Five Steps to Reducing Your Backup Window
Five Keys to Effective D2D & VTL Backup
The Realities of VTL Best Practice Guide Customer Success Stories
Dynamex Inc.
Alliant TechSystems (ATK)
Vistage International
Bumble Bee Foods | Capacity | ||
| Total Raw Capacity | 3 TB (12 250 GB SATA disk drives) 6 TB (10TB*) (12 500 GB SATA disk drives) 9 TB (15TB*) (12 750 GB SATA disk drives) 12 TB (20TB*) (12 1 TB SATA disk drives) *Virtual tape compressed (4500c) |
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| External Interfaces | ||
| Host | Two GbE Ports (RJ45), Two 4 Gb Fibre Channel ports (FC) - optional | |
| Management | 10/100 Ethernet port (RJ45) | |
| Power Requirements | ||
| Voltage | 100 to 240 VAC | |
| Frequency | 47 to 63 Hz | |
| Current | 100 VAC 4.94A – 240 VAC 2.06A | |
| Power Cord Connector (US) | IEC 60320 C13 connectors | |
| Enclosure | ||
| Dimensions (H x W x D) | 3.5 x 17 x 29 in. (8.9 x 44.4 x 73.6 cm) - 2U rackmount | |
| Weight | 60 lbs. (27.2 kg) | |
| Basics | ||
| Accessories Included | U.S. power cords (2), a USB softkey with Protection OS™ software and brackets for rack mounting | |
| Warranty/Service | 3 years Spares XchangeNow® and 90-day REO Protection OS support via telephone, email and Web – Extended service options available see warranty details under Service & Support | |
| Part Numbers | ||
| OV-REO101062 | REO 4500, iSCSI, 12x250GB, 3.TB | |
| OV-REO101063 | REO 4500, FC,12x250GB, 3TB | |
| OV-REO101064 | REO 4500, iSCSI, 12x500GB 6.0TB | |
| OV-REO101065 | REO 4500, FC,12x500GB, 6.0TB | |
| OV-REO101066 | REO 4500, iSCSI, 12x750GB 9.0TB | |
| OV-REO101068 | REO 4500, FC,12x750GB, 9.0TB | |
| OV-REO101045 |
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| OV-REO101046 |
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| OV-REO101047 |
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| OV-REO101048 |
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| OV-REO101043 |
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| OV-REO101044 | REO 4500c 9TB uncompressed, FC, 12 x 750GB | |
| OV-REO101041 | REO 4500c 6TB uncompressed, iSCSI, 12 x 500GB | |
| OV-REO101042 | REO 4500c 6TB uncompressed, FC, 12 x 500GB | |
| Expansion Arrays | ||
| OV-REO101091 | REO 4500 Expansion Array- 3TB - 12x250GB | |
| OV-REO101092 | REO 4500 Expansion Array- 6TB - 12x500GB | |
| OV-REO101093 | REO 4500 Expansion Array- 9TB - 12x750GB | |
| OV-REO101093 | REO 4500 Expansion Array- 12TB - 12x1TB | |
| Add-ons | ||
| OV-REO901162 | REO 4500 Accessory (Spare) 250GB Disk | |
| OV-REO901164 | REO 4500 Accessory (Spare) 500GB Disk | |
| OV-REO901166 | REO 4500 Accessory (Spare) 750GB Disk | |
| OV-REO901168 | REO 4500 Accessory (Spare) 1TB Disk | |
| OV-REO901028 | REO 4500 Compression upgrade | |
"With Overland’s REO/NEO data protection in place, Dynamex has plenty of room for expansion while dramatically lowering our administrative overhead. Plus, now it takes only a couple of hours to oversee the backup and recovery process when it used to take more than a day."
- Rodger Kreuger
NT Administrator, Dynamex Inc
"We were well protected during a potentially disastrous situation thanks to Overland. With REO and NEO, we have 100 percent confidence that our data is safe and secure"
-Forest Hudson
IS Manager, Graybill Medical Group
"With Overland's REO, we haven't spent one second de-fragmenting disks or dealing with compatibility issues. We've gons from spending eight hours a week managing disk-based backups to a couple of hours a year overseeing VTL firmware updates. Plus, REO integrates seamlessly with Overland's NEO tape libraries for complete D2D2T data protection."
-Jim Bollinger
Systems & Network Engineer, Washington and Lee University

