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Item#: N82E16820227771

OCZ Z-Drive R4 CM84 1.2TB PCI-E PCI-Express 2.0 x8 MLC Enterprise Solid State Disk ZD4CM84-HH-1.2T

  • PCI-E
  • MLC
  • PCI-Express 2.0 x8
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The OCZ Z-Drive R4 Series represents a turning point in the evolution of PCIe attached solid state storage by merging the best feature sets of both the pure hardware and pure software based approaches to data management. Designed and manufactured for a wide range of enterprise environments including cloud computing and data centers, the Z-Drive R4 features OCZ's Virtualized Controller Architecture (VCA) 2.0, providing the utmost in performance, flexibility, durability and enhanced reliability, allowing data centers to rely on a PCIe-based SSD as their primary tier one storage solution for the first time. Additionally, the Z-Drive R4's level of concentrated performance enables system architects to design more productive infrastructures while lowering operating costs associated with hard drive technology.

VCA 2.0 supports the industry standard SCSI command set and, among a litany of other things, provides highly efficient performance aggregation due to OCZ’s exclusive Complex Command Queuing Structure (CCQS), that handles balancing with OCZ's unique Queue Balancing Algorithm, that extends the NAND flash life at a block level, manages redundancy, and is the software interface with the host system.

Z-Drives integrate seamlessly with servers at the system bus and kernel level, creating a new flash memory tier and dramatically increasing throughput and application performance all while slashing capital and operating costs. The OCZ Z-Drive R4 Series is available in half height and full height configurations (half height form factor for CM84 Version).

  • newegg The Pinnacle of Storage Performance The OCZ Z-Drive R4 Series CM84 eliminates I/O and bandwidth bottlenecks by delivering up to 2,000 MB/s Max Read, 2,000MB/s Max Write and 250,000 IOPS 4KB Random Write performance. It delivers the performance of thousands of hard disk drives in a single server.
  • newegg Proprietary Virtualized Controller Architecture (VCA) 2.0 The OCZ Z-Drive R4 is truly unique, melding hardware and software managed solutions with integrated VCA 2.0. This brings traditional SSD technology into a new realm and enhances performance, deployment capabilities, and endurance. Included are OCZ’s exclusive command queuing and queue balancing algorithms, which can be handled by the onboard processing core for higher performance and reduced burden on the host resources. VCA 2.0 is also the only virtualization layer in the industry with TRIM and SCSI unmap support to enhance sustained performance and provide greater endurance by significantly reducing the overhead associated with garbage collection. Furthermore, VCA 2.0 offers consolidated SMART support and provides system administrators with advanced features for monitoring, analyzing, and reporting device attributes.
  • newegg SuperScale Storage Accelerator Unique to OCZ The OCZ SuperScale storage controller combines processing and full DMA (direct memory access) cores, as well as internal PCIe, SATA and SAS interfaces, facilitating scalable performance in enterprise & datacenter applications. This controller, combined with VCA 2.0 provides unique benefits to users by allowing certain DMA and data management functions including OCZ’s unique command queuing and queue balance algorithms to be handled by the onboard processing core, resulting in higher performance and reduced burden on the host resource.
  • newegg Superior Reliability, Endurance, & Security Features The OCZ Z-Drive R4 Series provides clients with world-class reliability features including superior data fail recovery, intelligent block management & wear-leveling for increased endurance, advanced security with 256-bit AES encryption support, and strong error correction for enhanced data integrity.

Learn more about the OCZ Technology ZD4CM84-HH-1.2T


Z-Drive R4 CM84


Form Factor
Memory Components
PCI-Express 2.0 x8


Max Sequential Read
Up to 2000 MB/s
Max Sequential Write
Up to 2000 MB/s
4KB Random Write
Up to 250,000 IOPS


Maximum IOPS: 260,000 IOPS
Random Write Operations(8kB): 160,000 IOPS

Key Differentiators:
- Highest performing enterprise PCIe solution on the market
- Merges the best features of pure hardware and software based approaches to data management and overcomes the inherent weaknesses of both
- Bootable as a direct-attach device
- Ultra-high endurance for enterprise applications (increases drive life by up to five times the rated P/E cycles of the NAND)
- Only PCIe drive with complete power fail protection & drive-level recovery
- Maintains user-configurable flexibility not found in other devices
- Only virtualization layer in the industry with TRIM and SCSI unmap support

Data Fail Recovery: Recovers data from up to one NAND flash block per NAND controller

Data Path Protection

Data Reliability: Read Unrecoverable Bit Error Rate (UBER) 10e-16

SMART Support

128-bit & 256-bit AES-compliant

PCI Express x8 or x16 slot; Fully compliant with the PCI Express Electromechanical Specification Rev. 2.0, and PCI Express Base Specification Rev. 2.0

Operating Systems: Windows Vista 32-bit/64-bit and Windows 7 32-bit/64-bit; Windows Server 2003; Windows Server 2008 R2 64-bit; Red Hat Enterprise Linux


Power Consumption (Idle)
Power Consumption (Active)
Operating Temperature
0°C ~ +70°C
Storage Temperature
-45°C ~ +85°C

Quick Info


  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years

Customer Reviews of the OCZ Technology ZD4CM84-HH-1.2T

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  • Garrison H.
  • 12/22/2013 11:33:15 PM
  • Tech Level: High
  • Ownership: more than 1 year

3 out of 5 eggsDecent drive

Pros: Decent amount of space, doesn't take up too much room. I was able to grab one on sale and figured might as well since Battlefield 4 just came out.

Cons: Pricey, not as fast as my SCSI HDD, lags when running heavy programs like solitaire. It loads into Windows way too fast. Not the same one I saw on Star Trek.

Other Thoughts: OCZ support is usually great but they were really stumped with my issues loading PC intensive programs like solitaire and calculator.

3 out of 7 people found this review helpful. Did you? Yes No

  • Sam J.
  • 6/9/2012 9:11:44 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year

5 out of 5 eggsZ-Drive R4 is blazing fast and stable

Pros: I have 18 of the 1.6 TB version installed in HP-DL580-G5s with Windows Server 2008 R2. They have replaced a fast SAN and solved my performance issues. We run SQL Server on each of these and have had no issues after we got the right drivers. The support for the Enterprise support team has been outstanding. Out of 18 drives we had 2 DOA but they were RMAd with cross shipping and had them the next day.

Cons: None.

Other Thoughts: I see tons of reviews complaining about OCZ Tech Support. I have used OCZ products for more than 5 years. People need to understand that they are always on the bleeding edge of technology and performance. Considering how advanced their products are, they are remarkably reliable. We should all thank them for there efforts, not bash them.

6 out of 10 people found this review helpful. Did you? Yes No

  • Tim M.
  • 3/15/2012 2:42:42 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month

1 out of 5 eggsHorrible Support, No virtualization ability.

Pros: Sounds Great on paper. Very fast if setup on Windows 2008R2 server directly.

Cons: We bought one of these to use with xenserveer. No Driver. So the 1 time we got OCZ support they sent us a beta ESXI version with VMWARE driver. It loads, but performance is worse than on board 7200 RPM SAS drive. We’ve been trying to get OCZ Enterprise support for over a week. No return emails or calls. Not very highly recommended at this time.

Other Thoughts: We actually have the 1.6 TB version of this that retails for over $10K. It seems like we should be able to get some kind of support for it. Phone number just goes to answering machine. No forums for enterprise hardware.

Manufacturer Response:

We sincerely aplogize for the difficulties. Please contact our Enterprise Support staff through the link below, or call our team direct at 408-440-3403. We care about our customers and will be happy to assist you and see that your needs are taken care of. Thank you

7 out of 8 people found this review helpful. Did you? Yes No

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