Datasheet
ftServer® V Series 4820 System
Continuous availability with stability and power for VOS applications
The Stratus ftServer V Series 4820 System delivers continuous availability with high performance in an operationally simple solution for VOS Applications.
Stratus servers running the OpenVOS operating system are highly valued for their ability to deliver industry-leading availability.
The V Series 4820 combines the stability of the OpenVOS operating system with the power of twenty Intel® Xeon® processor cores.
Key Benefit
- Continuous processing features
Like other Stratus systems, V Series servers use Continuous Processing technology to safeguard availability without the operational complexity and added costs inherent in high-availability clusters. Built-in fault tolerance eliminates the failover scripting, repeated testing and application changes required with server clusters.
- Lockstep technology
With Stratus’ lockstep technology, replicated, fault-tolerant hardware components process the same instructions at the same time. In the event of a component malfunction, the partner component acts as an active spare that continues normal operation. There is no system downtime and no data loss.

The V Series 4820 features a dual modular redundancy (DMR) hardware architecture engineered to provide greater than 99.999% availability right out-of-the-box. The V Series 4820 handles unprecedented levels of online transaction processing (OLTP) for applications such as trading systems in financial services and point-of-sale (POS) debit and credit card authorization. With exceptional headroom for application growth, these servers ensure unequaled investment protection.
Taking advantage of the performance and capacity of V Series servers couldn’t be simpler. You benefit from familiar VOS functionality that includes the availability protection you’ve come to rely on. Moving your mission-critical applications to V Series servers is easy and uncomplicated. Your existing Continuum®-based applications can be migrated by recompiling the application. Or call on Stratus Professional Services experts to assist with the migration. After migrating, you’ll find that ftServer V Series systems and applications will interoperate with your installed PA-RISC® servers running VOS. The same exceptional serviceability you are accustomed to —including server self-monitoring, the Stratus Remote Service Network (RSN™), and Comprehensive Service coverage*—continues to defend against unplanned downtime around the clock.
** Customers must have a Stratus Assured Availability Services Agreement in effect to receive coverage.
ftServer V Series 4820 System Specifications
Processor Memory | |
---|---|
Logical processors | 2 sockets (per CRU**) |
Processor | Processor Intel® Xeon® Silver 4210; 2.2 GHz, 10 core |
Cores | 10 (per CRU**) |
L3 cache | 23.75 MB (Shared, per processor socket) |
Intel QPI speed | 9.6 GT/s |
Memory | 16 GB |
I/O Subsystem | |
PCI adapter slots | 4 PCIe 3 x8 (2 per CRU**) low-profile 4 PCIe 3 x8 (2 per CRU**) full height |
Storage Subsystem/RAID Array | |
RAID configuration from factory | RAID 1 |
Maximum chassis modules | 5 logical, 10 physical |
Disk drives supported | 600 GB (2.5″ 15K RPM SAS) 1.8 TB (2.5″ 10K RPM SAS) 800 GB encryption ready Solid State Disk (2.5″ SAS) |
Maximum disks | 120 logical, 240 physical (in a RAID 1 configuration) |
Maximum disks per chassis module | 24 physical |
Host interface | 16 Gbps fibre channel |
Fibre channel switches | 2 (16 Gbps switched fabric) |
Embedded I/O | |
10/100/1000 Ethernet ports | 4 (2 per CRU**) |
10 Gigabit Ethernet ports | 4 (2 per CRU**) |
Serial (com) ports | 2 (9-pin ports per system, console and RSN use only) |
PCI Adapters | |
Dual-port fibre channel 16 Gbps | 2 included in base configuration (1 per CRU**) |
1 Gigabit 4-port Ethernet (copper) | up to 6 optional (3 per CRU**) |
1 Gigabit 4-port Ethernet (fiber) | up to 6 optional (3 per CRU**) |
10 Gigabit 4-port Ethernet (fiber) | up to 4 optional (2 per CRU**) |
Serviceability | |
Remote service network | Standard |
Hot-swappable components | CPU and I/O modules, disks |
Operating System | |
OpenVOS | Version 19.3.1 or later |
Power and Packaging | |
Input voltage | 200-240 VAC; 50 Hz, 60 Hz |
Cabinet | Stratus supplied 38U |
Weight | Max Weight 567 kg (1,250 lbs.) |
** CRU – Customer Replaceable Unit.