adaptec by pmc series 7 adapters

ADAPTEC SERIES 7 RAID ADAPTERS 2nd Generation 6Gb/s solutions with game-changing performance

A SHIFTING LANDSCAPE

Consumer and business demand for fast and reliable access to data and content continues to grow

Data centers are faced with the challenge of meeting this demand while reducing the cost of service (COS) per user, as well as hardware-related Capital Expenses (CapEx), and Operating Expenses (OpEx)

Shrinking physical space adds to the challenge as data centers are unwilling to take on more real estate and the costs of powering and cooling larger spaces

Clearly, the days of simply adding more servers to accommodate more traffic are over

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DATA CENTERS DOING MORE WITH LESS

As a result, server vendors have introduced smaller, denser, server chassis sizes that help data centers add more storage I/O capability while maintaining the same or a smaller footprint

Accordingly, storage vendors are focusing on small form-factor solutions that will fit into the smaller chassis while providing the high performance that data centers require


DATA CENTERS DOING MORE WITH LESS

Storage components, such as hard disk drives, are getting physically smaller (though increasing in capacity)

Low-profile storage adapters are also becoming more common, but only a select few are able to deliver top I/O performance and low latency in a compact form factor

This is an important consideration for data centers because finding the right combination of form, fit and function allows them to deploy one SKU for almost any configuration and simplify everything from the purchase decision to installation to maintenance


ADAPTEC SERIES 7 RAID ADAPTERS

Adaptec Series 7 SAS/SATA RAID adapters meet the needs of modern space-challenged data centers by doubling storage performance compared to previous-generation RAID adapters while featuring high port counts and low-profile form factors that reduce latency, real estate requirements and power consumption


THE NEW GENERATION OF PCIe

PCI Express (PCIe) is a motherboard-mounted expansion bus that, through a connected device such as a RAID adapter, connects the host system processor to add-on peripherals, such as storage systems.

PCIe Gen3 doubles bandwidth to the host compared to PCIe Gen2, increasing per-lane throughput from 250 MB/s to 500 MB/s.

With PCIe Gen2, 8 6Gb/s SAS/SATA ports are sufficient to achieve maximum performance. However, PCIe Gen3 requires a minimum of 16 native 6Gb/s SAS/SATA ports to double the bandwidth through the storage connections.


THE PCIe BOTTLENECK

A select group of storage adapters that claim to be designed for PCIe Gen3 has appeared the market, but most of them max out at 8 ports and cannot take full advantage of PCIe Gen3’s superior performance (top, right)

Only Adaptec Series 7 SAS/SATA RAID adapters, available with 16 or 24 native SAS/SATA ports, are designed to fully exploit the high-performance characteristics of PCIe Gen3 (bottom, right)

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Competing PCIe Gen3 RAID adapter

Adaptec PCIe Gen3 RAID adapter

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SMALL FORM FACTOR DRIVES: MORE STORAGE, LESS SPACE

In recent years, the storage industry has been transitioning from 3.5-inch storage drives to 2.5-inch Small Form Factor (SSF) drives

Not only do SFF drives offer the obvious advantage of allowing more drives to fit into the same server rack space, but 2.5-inch drives hold more capacity per space occupied than the 3.5-inch drives they are replacing, reaching 1TB or more


THE MOVE TO FLASH STORAGE

The cost of 2.5-inch flash-based solid state drives (SSDs) is finally coming more in line with HDDs in terms of the traditional “cost per GB of capacity” metric

Combined with a higher read bandwidth, higher input/output operations per second (IOPs), better mechanical reliability, and higher resistance to shock and vibrations compared to HDDs, is driving an industry-wide transition to SSDs


PITFALLS OF RAID EXPANDERS

As the quantity of drives in a server chassis increases, the storage adapter card’s port count requirements also increase

A storage adapter port count has traditionally been increased through the use of an expander — a board that connects additional attached SAS or SATA devices to the system when the adapter does not have enough ports to accommodate them

However, expanders comes with drawbacks (right)

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Drawbacks of expanders

Added complexity for the storage solution

Additional cost — about $200 for the expander itself plus the cost of cables plus installation

Increased power consumption, and maintenance costs

Occasional compatibility issues with other storage components

Latency and data transfer bandwidth limitations


THE NEED FOR HIGH NATIVE PORT COUNT

These drawbacks have long been tolerated by data centers as they do not noticeably impact the slow read and write speeds of HDDs

But the latency and bandwidth issues have become less acceptable with the deployment of higher-performance SSDs

An ideal solution would be a high native port count 6Gb/s storage controller that can fully leverage PCIe Gen3’s performance

However, most 6Gb/s storage adapters max out at 8 ports


ADAPTEC SERIES 7

Adaptec Series 7 SAS/SATA RAID adapters are a new generation of high-performance, high native port count adapters that are unrivalled by any other adapter in the industry


ADAPTEC SERIES 7

Series 7 RAID adapters feature PMC’s 24-port PM8015 RAID-on-Chip (ROC), which combines an x8 PCIe Gen3 interface with 8, 16, or 24 native 6Gb/s SAS/SATA ports

Adaptec Series 7 RAID adapters are the first on the market to take full advantage of PCIe Gen3 performance gains by using HD mini-SAS connectors to offer options with 16 or 24 native SAS/SATA ports


SERIES 7 MB/S PERFORMANCE

Traditionally, RAID adapter performance has centered around read and write throughput, measured in megabytes per second (MB/s)

Using this metric, Series 7 adapters perform up to 83% better than competing RAID adapters — 6.6GB/s on sequential reads and up to 2.6GB/s on sequential writes on parity RAID 5

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83% Faster

Than competing RAID adapters (MB/s)

Adaptec Series 7 RAID Adapters


SERIES 7 IOPS PERFORMANCE

With the growing popularity of SSDs, input/ output operations per second (IOPs) has become the new performance metric to watch

In a RAID 5 configuration with 16 direct-connected SSDs, Series 7 adapters lead the field with 450K IOPs — nearly 10x the performance of previous-generation RAID adapters, and more than double that of the competition*

*Using 4K I/O size in random workload scenarios

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1% in sales1

2x Faster

Than competing RAID adapters (IOPs)

Adaptec Series 7 RAID Adapters


Comparison between 24-port PCIe Gen3 Adaptec 72405 SAS/SATA RAID adapter and a competing 8-port PCIe Gen3 RAID adapter.

PERFORMANCE COMPARISON – RAID 5

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RAID – 5 SSD Based on Queue Depth = 256

24-port ASR 72405 (Direct connexion)

Competing 8-port adapter

(No I/O acceleration

software) %


(With I/O acceleration

software) %

512B Random Reads (IOPs) 531,580 163,283 225.6% 373,054 42.5%

512B Random Writes (IOPs) 28,311 16,771 68.8% 16,759 68.9%

4K Random Reads (IOPs) 529,731 163,283 224.4% 377,448 40.3%

4K Random Writes (IOPs) 28,488 16,655 71.1% 16,660 71.0%

1MB Sequential Reads (MB/s) 6,192 3,928 57.6% 3,904 58.6%

1MB Sequential Writes (MB/s) 2,237 2,185 2.4% 2,190 2.2%




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24-port ASR 72405 (Direct connection)



software) %



software) %


512B Random Writes (IOPs) 130,851 43,901 198.1% 43,752 199.1%


4K Random Writes (IOPs) 192,051 43,808 338.4% 43,508 341.4%





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24-port ASR 72405 (Direct connection)



software) %



software) %


512B Random Writes (IOPs) 238,681 166,875 43.0% 352,385 -32.3%


4K Random Writes (IOPs) 245,327 166,803 47.1% 295,252 -16.9%





PERFORMANCE COMPARISON

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ADAPTEC SERIES 7 RAID ADAPTERS

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Adaptec RAID 72405 71685 71605 7805 71605E Order Part Number 2274900-R (single) 2274700-R (single) 2274400-R (single) 2274100-R (single)

2274200-R (kit) 2274500-R (single)

RAID Levels 0, 1, 1E, 5, 6, 10, 50, 60

0, 1, 1E, 5, 6, 10, 50, 60

0, 1, 1E, 5, 6, 10, 50, 60

0, 1, 1E, 5, 6, 10, 50, 60

0, 1, 1E, 10,

Form Factor Half Length- Full Height

4.198”H x 6.6”L

Half Length- Full Height

4.198”H x 6.6”L

MD2-Low Profile 2.535”H x 6.6”L

MD2- Low Profile

2.535”H x 6.6”L

MD2- Low Profile

2.535”H x 6.6”L

Ports 24 Internal 16 Internal 8 External 16 Internal 8 Internal 16 Internal

Connectors 6 X SFF-8643 4 X SFF-8643/2 X SFF-8644 4 X SFF-8643 2 X SFF-8643 4 X SFF-8643

Bus Interface 8-Lane PCIe Gen 3

8-Lane PCIe Gen 3

8-Lane PCIe Gen 3

8-Lane PCIe Gen 3

8-Lane PCIe Gen 3

Processor PMC PM8015 PMC PM8015 PMC PM8015 PMC PM8015 PMC PM8015 Cache 1024MB 1024MB 1024MB 1024MB 256MB Cache Protection AFM-700 (optional) AFM-700 (optional) AFM-700 (optional) AFM-700 (optional) Not Supported

SAS HD Cables Not included Not included Not included ACI-I-HDmSAS-4SATA-SB-.8M Not included

CONCLUSION With the new Series 7 adapters, Adaptec by PMC brings to market a number of breakthroughs for the most performance-intensive applications and dense server environments:

The industry's only PCIe Gen3 low-profile/MD2 form-factor adapter with 16 native ports for maximum performance, fit and function

The industry's only PCIe Gen3 adapters with 24 native ports for maximum performance, fit and function

The industry's only solution to offer 450K IOPS and 6.6GB/s throughput for maximum performance

The industry's only solution to reduce system cost without compromising performance

The industry's only solution to take full advantage of PCI Gen3 bandwidth for maximum performance


adaptec by pmc series 7 adapters

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