Josh-Daniel S. Davis (joshdavis) wrote,
Josh-Daniel S. Davis

OCZ Z-Drive Rev2: p88 / 512GB - 2TB / 8 x PCI-E / 8 x SATA / MLC NAND

OCZ Technology announced the Company's plan to enter mass production of the Z-Drive R2 Solid State Drive (SSD) Series. The Z-Drive family is a bootable 8-way RAID 0, and connects via an 8-lane PCI Express slot. It claims to be the only bootable and field serviceable PCIe SSD option on the market today. The NAND modules are socketed to enable field-upgrade.

Amazon prices range from $1268 for a 250 GB m84, to $10,300 for a 2TB p88. The eSeries is not available yet.

Common Specifications:
NAND Flash Components: Multi-Level Cell (MLC) NAND Flash Memory
Interface: PCI Express
Form Factor: x8 slot full height PCI Express
Life Expectancy: 1 million hours Mean Time Before Failure (MTBF)
Reliability: ECC is BCH with 8, 12 or 16 bits correctable, depending on NAND
Product Health Monitoring: Self-Monitoring, Analysis and Reporting Technology
Operating Temperature: 0C - 70C
Storage Temperature: -45C - +85C
Certifications: RoHS, CE, FCC
Performance Optimization: Background Garbage Collection (GC)

The 84 modules Specifics:

Cache: 256MB on board Cache
Max Read: up to 800MB/s, Max Write: up to 750MB/s, Sustained Write: up to 500MB/s
Max Random Write IOPS: 7500 IOPS (4KB 32QD), Max Random Read IOPS: 29000 IOPS (4KB 32QD)
Power Consumption: Active: 12Watts

The 88 modules specifics:

Cache: 512MB on board Cache
Max Read: up to 1.4GB/s, Max Write: up to 1.4GB/s, Sustained Write: up to 950MB/s
Max Random Write IOPS: 14500 IOPS (4KB 32QD), Max Random Read IOPS: 29000 IOPS (4KB 32QD)
Power Consumption: Active: 20Watts

Press Release:

Question and Answer with Patrick Kiley, WW OEM Sales Mgr for OCZ Technology
JD: So the individual modules are roughly 200MB/sec read and write, and you have 4 or 8 mounted on an 8-lane PCI express SATA controller?

OCZ> This is extremely close to being correct. We have 4 or 8 SSD controllers mounted on a board using an LSI 1068E SAS controller.

JD: Is the RAID-0 transparent, or will drivers be required?
OCZ: Drivers are required for the 1068E to be identified by the OS, however the RAID0 is done in hardware and is transparent.

JD: What's the form factor of the board?
OCZ: The P84 boards are full height and close to full length. The P88 boards are the same, but double width.

JD: Will it need a bracket on the tail end if mounted horizontally?
OCZ: Some form of extra support would be suggested for horizontal applications (1u, 2u as examples). Since each platform is different OCZ does not have an off the shelf solution. We would be happy to work with customers on a case by case basis where the business makes sense.

JD: Will this be MLC, SLC or a combination?
OCZ: M84, P84, and P88 are MLC. E84 and E88 which will be launching soon are SLC

JD: How much RAM cache?
OCZ: The LSI 1068E does not have an external cache on it. Each of the SSD controllers has 64MB of cache.

JD: Does the long term performance require TRIM to be enabled?
OCZ: This depends on how the drive is used. If its used for sequential writes then no it should be fine without TRIM. If the drive is relatively full to capacity and has a lot of small file random writes then TRIM is very helpful in maintaining performance. Currently TRIM does not work because the individual controllers are behind the RAID controller in an array. OCZ is working on developing drivers that will enable TRIM, as well as a consolidated SMART reporting

JD: Will the modules be hot-swappable?

JD: Will in-place capacity upgrades be supported? (eg, replace one bank of modules, let it sync up, then replace the other bank)
OCZ: No, all modules will need to be replaced at the same time. Keep in mind this is RAID0 so regardless, data is lost.

JD: Will other RAID levels be supported than RAID0? If so, is the processing done on the board, or in the OS? If it's on the board, what sort of CPU/DSP is involved?
OCZ: Not in this generation no, RAID0 only and processing is done in the 1068E.
Tags: ocz, sata, solid state, ssd, storage
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