Quanta QCT QuantaPlex T21SR-2U

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2U 2-Node High Availability Storage Server

Quanta QCT QuantaPlex T21SR-2U is a 2U two-node Cluster-in-a-Box server. Two server nodes are clustered via a PCIe interconnection and share up to 24 disk drives in a 2U chassis. The 10 GB connects between the server boards via the mid-plane, so if one server board fails, the other server board is able to takecontrol and gain full access to HDD and front end host I/O, keeping the system up and running. Both server boards can also work in Active-Active mode.



T21 2U comp  
  • Processor Support:Intel® Xeon® processor E5-2600 v3 product family 
  • (2 per node)
  • Chipset:Intel® C610 chipset
  • Memory Support:16x 2133 MHz DDR4 RDIMM/ LRDIMM per node
  • Storage Support:24x 2.5" or 12x 3.5" hot-plug shared SAS HDD, 2x 2.5" hot-plug SSD, 1x USB flash module per node
  • IPMI 2.0 "KVM over IP"
  • Power Supply: 2x high efficiency hot-plug 1600W PSU or 
  • 2x high efficiency hot-plug 1200W PSU



System Integrity Protection

The biggest challenge during system operation is avoiding storage server failure, power loss, short interrupt or power supply unit failure. QuantaPlex T21SR-2U uses a backup battery unit (BBU) to provide up to 120 seconds of power for each node after a power failure. It also assists in a graceful shut down and maintains system and data integrity.

On-The-Fly Cache Synchronization

QuantaPlex T21SR-2U offers two kinds of fail-over solutions, the 10Gb PCIe interconnection and the Non-Transparent Bridge (NTB) technology. An owner can choose either one or both. This architecture allows storage software vendors to implement enterprise-level cluster functions with rapid cached synchronization to meet their high-availability requirements.

Lastest Generation Platform with DDR4 Technology

QuantaPlex T21SR-2U operates with the latest Intel® E5-2600 v3 product family and the newest DDR4 memory technology. It provides maximum 18-core count CPU with enhanced QPI bandwidth to 9.6GT/s, a 20 percent improvement from the previous generation. With up to 1024 GB memory capacity, the system performance has a Linpack score up to 80 percent* and is optimized to run the most demanding of applications.

Various OCP Network Options

QCT uses the modular design concept to optimize system interoperability, flexibility and serviceability. QCT’s flexible network mezzanine cards are designed to fit into every QCT server/storage system to reduce the complexity and uncertainty of the system availability options.

Dual Rotor Fan Design 

QCT dual rotor fans maintain non-impact performance. Compared to a single fan design, a dual rotor fan keeps the system’s internal air flowing in the right direction if one rotor fails, enhancing product stability and durability.

High Serviceability

The QuantaPlex T21SR-2U consistently delivers high serviceability to reduce service time and costs. Its module design concept for the fan cage and the PDB cage reduces cable routing.

Technical Specifaction:

Form Factor (LxWxH)  

2U Rack Mount, Dual Clustered Node
W x H x D (inch): 17.48 x 3.44 x 31.1
W x H x D (mm): 444 x 87.5 x 790

Expansion Slots

  Two x8 PCIe 3.0, LP MD-2
One x8 PCIe 3.0 SAS mezzanine slot
One x8 PCIe 3.0 for 10Gb KR
Processor   Processor Type: Intel® Xeon® processor E5-2600 v3 product family
Chipset   Intel® C610 Chipset

Intel® 610: 6x SATA 6Gb/s ports; SATA RAID 0, 1, 10 (supports UFM)
Optional Controller:
LSI® SAS 9300-8i Host Bus Adapter
LSI® Syncro CS 12Gb/s Raid Adapter

Memory   Total Slots: 16
Capacity: Up to 512GB RDIMM/ 1024GB LRDIMM
Memory Type: 2133 MHz DDR4 RDIMM/ LRDIMM
Memory Size: 32GB, 16GB, 8GB RDIMM/ 64GB, 32GB LRDIMM

Option 1:
12x 3.5" hot-plug shared SAS HDD
2x 2.5" hot-plug SSD for OS installtion, 1x USB Flash Module per node
Option 2:
24x 2.5" hot-plug shared SAS HDD
2x 2.5" hot-plug SSD for OS installtion, 1x USB Flash Module per node


Quanta Intel® 82599ES dual-port 10G SFP+ mezzanine
Option 1:
Intel® I350 dual-port 1 GbE per node 
Intel® X540 dual-port 10GbE BASE-T per node**
** Restrictions apply, please contact

Option 3:
Intel® 82599ES dual-port 10G SFP+ per node

Management Port   Dedicated 10/100 management port per node
Integrated Graphics   Aspeed AST2400 8MB DDR3 video memoery
Front I/O   Power/ID/Reset Buttons, LEDs, 1x USB2.0
Rear I/O  

2x USB 3.0 ports
1x VGA port
1x RS232 serial Port
2x 1 GbE or 10G BASE-T RJ45 port
1x 10/100 RJ45 magement port

Power Supply   Option 1: 2x high efficiency hot-plug 1600W PSU, 80 Plus Platinum
Option 2: 2x high efficiency hot-plug 1200W PSU, 80 Plus Platinum
TPM   Yes (option)
RoHS Compliance   Yes
System Management   IPMI v2.0 compliant, on board "KVM over IP" support


For more information contact Zstor's sales team via E-Mail:

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