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Dell Storage PowerVault ME4 ME4024 FC

Mã SP: ME4 ME4024 FC ( 0 )
Bảo hành: 12 tháng
Giá niêm yết: 330.000.000 đ
Giá: 326.800.000 đ (Tiết kiệm: 3.200.000 đ)
[Giá chưa có VAT]
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Dell Storage PowerVault ME4  ME4024 FC

DHsmart.vn là đơn vị chuyên phân phối thiết bị lưu trữ Dell Storage PowerVault ME4  ME4024 FC chính hãng, với giá luôn tốt nhất, hỗ trợ kỹ thuật 24/7.

Dòng Dell EMC PowerVault ME4 là dòng bộ lưu trữ được thiết kế để đáp ứng nhu cầu của cơ quan, đơn vị vừa và nhỏ, thường được coi là ở mức giá dưới $ 25K. Tuy nhiên, PowerVault ME4 Series cực kỳ linh hoạt. Hệ thống có thể được triển khai trong cấu hình HDD để đáp ứng nhu cầu của thị trường mới nhập cảnh hoặc cạnh tranh với giá khởi điểm dưới $ 10K, hoặc nó có thể được cấu hình ở dạng hybrid hoặc all-flash để đáp ứng các nhu cầu khắt khe hơn của doanh nghiệp đang phát triển. Bất kể nó được triển khai như thế nào, PowerVault ME4 cung cấp cho các tổ chức một giải pháp lưu trữ dễ triển khai và quản lý, cung cấp nhiều tính năng phổ biến trong các sản phẩm lưu trữ của doanh nghiệp.
Bộ lưu trữ Dell PowerVault ME4024 FC, 16Gb CNC 8 Port Dual Controller, 12x 1.2TB 10K HDD, 2x580W, 3Yr.

Dell EMC PowerVault ME4024 Design and Build

The Dell EMC PowerVault ME4 is a 2U storage array that is consistent in design with the rest of the current generation Dell EMC data center products. The unit has a stylish bezel with both Dell EMC and PowerVault branding on the front. Removing the bezel on our ME4024 reveals the twenty-four 2.5” drive bays that can fit either HDDs or SDDs.


Flipping around to the rear of the device, we can see the connectivity of the platform. Each controller offers a mirrored connection assortment. Looking at the top controller, the blue port is for JBOD expansion, black is management (LAN, USB, and serial) while the purple ports are SFP+ connections that can be used for 10G networking or 8/16Gb FC. In our setup we have 16Gb optics installed and all ports allocated to FC. The array supports all ports for FC, all ports for Ethernet, or half for each in a hybrid configuration. While the system does offer certain PowerEdge design elements, it does not include iDRAC management that you might find with other Dell EMC storage offerings based on PowerEdge hardware.

The Dell EMC PowerVault ME4024 is highly serviceable, with redundant user-replaceable power supplies as well as dual active-active controllers. Users are able to pull and swap controllers online, as well as manage firmware mirroring across controllers. This makes it easy to keep the system up to date and synchronized as firmware is pushed. The same on-board firmware tools can also be leveraged for updating attached JBODs and disks (anything the controllers can see).

Dell Storage PowerVault ME4  ME4024 FC Management

Để quản lý, Dell EMC PowerVault ME4 sử dụng Trình quản lý lưu trữ ME. Mở màn hình chính, người dùng có thể đi qua cài đặt hệ thống và thiết lập các hành động như chế độ cổng máy chủ. Trong màn hình hiển thị bên dưới, bạn có thể thấy cấu hình trên cơ sở mỗi cổng cho mỗi kết nối Kênh sợi quang (tất cả các cổng được cấu hình cho FC) và tùy chọn để định cấu hình lại mảng thành iSCSI hoặc Hybrid. Bạn cũng có thể lưu ý chế độ kết nối cổng cho mỗi cổng FC, chế độ này có thể được điều chỉnh dựa trên việc bạn sẽ kết nối máy chủ với mảng thông qua công tắc hoặc gắn trực tiếp. Một số môi trường nhỏ hơn có thể tận dụng loại địa hình đó để giảm chi phí và độ phức tạp.



Tab tiếp theo là tab Hệ thống cho phép người dùng có cái nhìn tổng quan về các phần khác nhau của hệ thống. Di chuột qua các phần tử sẽ mở rộng thông tin cho mục đó. Trên tab Hệ thống, bạn có thể xem phía trước hoặc phía sau dưới dạng đồ họa hoặc xem tất cả thông tin được trình bày trong bảng văn bản. Khu vực này hữu ích để đi sâu vào các chi tiết cụ thể của hệ thống như mức độ mòn của ổ đĩa, bản sửa đổi chương trình cơ sở hoặc các số liệu thống kê không theo ngày khác.



Tab Export... cho phép người dùng thiết lập, lấy thông tin hoặc xóa các nhóm lưu trữ. Họ cũng sẽ nhận được các thông tin cơ bản như năng lực, lớp học và năng lực hiện có. Nếu người dùng đang thêm đĩa vào mảng, họ có thể sử dụng hành động để thêm vào nhóm đĩa để mở rộng dung lượng lưu trữ.


Tương tự như tab Export.., tab Tập cho người dùng tóm tắt nhanh các tập hiện tại được tạo với thông tin thích hợp và cho phép tạo các tập mới hoặc mở rộng hoặc xóa các tập hiện có. Khu vực này cũng cho phép các khối lượng được ánh xạ tới các máy chủ và bao gồm các tùy chọn khối lượng chẳng hạn như thiết lập mức độ ưu tiên.


Dell EMC PowerVault ME4024 Configuration

The Dell EMC PowerVault ME4024 was supplied with 24 disks, half of which are Read-Intensive 960GB SSDs and the other half 1.8TB 10K SAS HDDs. The ME4024 supports both caching and tiering, the latter of which offers the full performance advantage of flash when data is pushed up into that tier. To speed up our testing process and show the performance characteristics of both storage types, we created storage pools of just flash or just spinning media. In a production system, users would have both storage types in the same pool, with the array managing data moving up and down based on access patterns.

For storage specifically, we leveraged RAID10 which is commonly used by customers purchasing this storage array. With 12 drives of each type and a two-controller layout, we split them into two groups of six drives. This allowed us to create a six-drive RAID10 pool on each controller, with three disk groups. This configuration was used for both SSDs and HDDs separately.

For the back-end connectivity, the ME4024 supports three modes; iSCSI, FC or Hybrid FC/iSCSI. The system was supplied with all 16Gb FC optics, so we went with a pure FC configuration. This leveraged all 8 ports (four per controller) attached to our dual-switch FC fabric. In aggregate, this allowed for a theoretical 128Gb bandwidth from the storage array (16GB/s) where our dual-port 8-host cluster supports 256Gb or 32GB/s peak.

Dell EMC PowerVault ME4024 Performance Review

SQL Server Performance

StorageReview’s Microsoft SQL Server OLTP testing protocol employs the current draft of the Transaction Processing Performance Council’s Benchmark C (TPC-C), an online transaction processing benchmark that simulates the activities found in complex application environments. The TPC-C benchmark comes closer than synthetic performance benchmarks to gauging the performance strengths and bottlenecks of storage infrastructure in database environments.

Each SQL Server VM is configured with two vDisks: 100GB volume for boot and a 500GB volume for the database and log files. From a system resource perspective, we configured each VM with 16 vCPUs, 64GB of DRAM and leveraged the LSI Logic SAS SCSI controller. While our Sysbench workloads tested previously saturated the platform in both storage I/O and capacity, the SQL test looks for latency performance.

This test uses SQL Server 2014 running on Windows Server 2012 R2 guest VMs, and is stressed by Dell’s Benchmark Factory for Databases. While our traditional usage of this benchmark has been to test large 3,000-scale databases on local or shared storage, in this iteration we focus on spreading out four 1,500-scale databases evenly across our servers.

SQL Server Testing Configuration (per VM)

  • Windows Server 2012 R2
  • Storage Footprint: 600GB allocated, 500GB used
  • SQL Server 2014
    • Database Size: 1,500 scale
    • Virtual Client Load: 15,000
    • RAM Buffer: 48GB
  • Test Length: 3 hours
    • 2.5 hours preconditioning
    • 30 minutes sample period

For our SQL Server transactional performance, the Dell EMC PowerVault ME4 saw an aggregate of 12,622.2 TPS with individual VMs ranging from 3,152.5 TPS to 3,158.6 TPS.

Looking at SQL Server average latency, the ME4 gave us an aggregate of 10.5ms with individual VMs ranging from 6ms to 15ms.

Sysbench MySQL Performance

Our first local-storage application benchmark consists of a Percona MySQL OLTP database measured via SysBench. This test measures average TPS (Transactions Per Second), average latency, and average 99th percentile latency as well.

Each Sysbench VM is configured with three vDisks: one for boot (~92GB), one with the pre-built database (~447GB), and the third for the database under test (270GB). From a system resource perspective, we configured each VM with 16 vCPUs, 60GB of DRAM and leveraged the LSI Logic SAS SCSI controller.

Sysbench Testing Configuration (per VM)

  • CentOS 6.3 64-bit
  • Percona XtraDB 5.5.30-rel30.1
    • Database Tables: 100
    • Database Size: 10,000,000
    • Database Threads: 32
    • RAM Buffer: 24GB
  • Test Length: 3 hours
    • 2 hours preconditioning 32 threads
    • 1 hour 32 threads

For Sysbench, we tested sets of VMs that include both 4VM and 8VM. For the average transactional testing, the ME4 was able to hit 9,330.1 TPS for 4VM and 13,606.8 TPS for 8VM.

With Sysbench average latency, the ME4 had latency of 13.7ms for 4VM and 18.9ms for 8VM.

In our worst-case scenario (99th percentile) latency, the ME4 was able to hit 33.5ms for 4VM and 39.5ms for 8VM.

VDBench Workload Analysis

When it comes to benchmarking storage arrays, application testing is best, and synthetic testing comes in second place. While not a perfect representation of actual workloads, synthetic tests do help to baseline storage devices with a repeatability factor that makes it easy to do apples-to-apples comparison between competing solutions. These workloads offer a range of different testing profiles ranging from “four corners” tests, common database transfer size tests, as well as trace captures from different VDI environments. All of these tests leverage the common vdBench workload generator, with a scripting engine to automate and capture results over a large compute testing cluster. This allows us to repeat the same workloads across a wide range of storage devices, including flash arrays and individual storage devices.

Profiles:

  • 4K Random Read: 100% Read, 128 threads, 0-120% iorate
  • 4K Random Write: 100% Write, 64 threads, 0-120% iorate
  • 64K Sequential Read: 100% Read, 16 threads, 0-120% iorate
  • 64K Sequential Write: 100% Write, 8 threads, 0-120% iorate
  • Synthetic Database: SQL and Oracle
  • VDI Full Clone and Linked Clone Traces

The Dell EMC PowerVault ME4 will most likely be used as a hybrid, however it is capable of being filled with all spinning disks or all flash. We tested both SSDs and HDDs individually to give readers an overall picture of how the unit would react to data sitting inside those two tiers. When operated with spinning media and flash inside the same pool, the system will automatically handle data tiering, with licenses included with the ME4 purchase.

For random 4K read performance, the HDDs had a peak performance or 4,986 IOPS at a latency of 820ms. The SSDs were able to stay under 1ms until about 260K IOPS and peaked at 299,962 IOPS with a latency of 13.6ms.

With random 4K write performance, the HDDs peaked at 3,621 IOPS and a latency of 566ms. The SSDs stayed under 1ms until about 150K IOPS and peaked at 167,569 IOPS with a latency of 12.2ms.

Next, we switch over to sequential testing with our 64K benchmarks. With read, the HDDs peaked at 11,764 IOS or 735MB/s with a latency of 41.5ms (though the latency spiked up to around 80ms near the middle of the benchmark). The SSDs had sub-millisecond latency until about 34K IOPS or about 2.2GB/s and peaked at 83,860 IOPS or 5.2GB/s at a latency of 6ms, again with a larger spike near the middle (near 9ms).

For sequential 64K write, the HDDs had a pretty consistent run until peaking at 13,664 IOPS or 854MB/s and a latency of 18.3ms. The SSDs also had a large run on consistent performance and stayed under 1ms until about 17.5K IOPS, going on to peak at roughly 18,200 IOPS or 1.15GB/s at a latency of roughly 12ms before dropping off in performance and its latency trailing up.

Our next batch of benchmarks are our SQL tests. In SQL, the ME4 with HDDs peaked at 4,752 IOPS with a latency of 215ms. The SSDs had sub-millisecond latency performance until about 227K IOPS and peaked at 251,860 IOPS with a latency of 4ms.

For SQL 90-10, the HDDs peaked at 4,441 IOPS and a latency of 230ms. The SSDs stayed under 1ms until about 210K IOPS and peaked at 233,040 IOPS with a latency of 4.4ms.

With SQL 80-20, the HDDs had a peak performance of 4,131 IOPS at a latency of 244ms. The SSDs stayed under 1ms until about 195K IOPS and peaked at 214,547 IOPS with a latency of 4.8ms.

Moving on to our Oracle workloads, we saw the HDDs peak at 4,138 IOPS and a latency of 302ms. The SSDs maintained sub-millisecond latency until about 193K IOPS and peaked at 212,272 IOPS with a latency of 5.98ms.

For Oracle 90-10, the HDDs peaked at 4,477 IOPS with a latency of 152ms before dropping off some. The SSDs ran under 1ms for most of the test and peaked at 231,521 IOPS with a latency of 2.8ms.

Oracle 80-20 had the HDDs peak at 4,017 IOPS with a latency of 175ms. The SSDs ran to 193K IOPS under 1ms and peaked at 213,965 IOPS with 3ms of latency.

Next, we switched over to our VDI Clone Test, Full and Linked. For VDI Full Clone Boot, the HDDs peaked at 4,257 IOPS at a latency of 249ms. The SDDs peaked at 212,565 IOPS and a latency of 4.8ms.

With VDI FC Initial Log In, the HDDs peaked at 3,614 IOPS and a latency of 265ms. The SSDs maintained sub-millisecond latency until about 70K IOPS and peaked at about 76K IOPS at 10ms before falling off some.

VDI FC Monday Login saw the HDDs peak at about 3,400 IOPS at 120ms latency. The SSDs stayed under 1ms until about 75K IOPS and peaked at 83,371 IOPS with 5.9ms latency.

Switching over to the VDI Linked Clone (LC), in the boot test, the HDDs peaked at 5,588 IOPS with a latency of 870ms. The SSDs had sub-millisecond performance until about 181K IOPS and went on to peak at 203,898 IOPS with a latency of 2.5ms.

For VDI LC Initial Log In, the HDDs peaked at 4,067 IOPS with a latency of 63.2ms. The flash storage stayed under 1ms until just shy of 50K IOPS and peaked at 54,120 IOPS with a latency of 4.5ms.

Finally, for VDI LC Monday Login, the HDDs peaked at about 3,900 IOPS at roughly 120ms before falling off a bit. The SSDs stayed under 1ms until about 49K IOPS and peaked at about 57K IOPS with a latency of 7ms.

Conclusion

When it comes to storage arrays, not every business is looking for the highest performing box with a slew of features. Many businesses are looking for strong performing, reliable and affordable storage arrays. This is the spot where platforms such as the Dell EMC PowerVault ME4 come in, as an entry offering, and with the speed and price point geared for most SMB/edge use cases. The ME4 knocks it out of the park on this front, with a sub-$10K starting price and a build-it-as-required pricing model. PowerVault ME4 buyers also get an all-inclusive licensing package, enabling flash caching/tiering with support for iSCSI or FC deployments amongst other features.

In terms of performance, the PowerVault ME4 is specced at offering up to 320k IOPS of throughput. In our tests with a configuration half-populated with read-intensive flash, we were able to get just shy of 300k IOPS 4K read with two RAID10 pools (one per controller) in our virtualized environment. Random write performance was 167k IOPS 4K, which is also very respectable for a storage platform in this market segment. Bandwidth measured was also strong, peaking out above 5GB/s read and 1.15GB write.

The eye opener, though, is just how well it performs in our application tests focusing on SQL Server and MySQL performance. In these areas, we saw an average latency of 10.5ms in SQL Server, which is very good even when compared to much more expensive all-flash arrays. Sysbench performance scaled from 9K TPS to 13.6K TPS, which again is very strong. The only downside to this platform is if trying to use it in a larger than intended environment, performance will falter. That’s the domain of midrange all-flash products, though, that can handle increased loads better. In Dell EMC parlance, that’s either the Unity or SC Storage lines.

Overall though, the ME4 knows what it’s trying to be. Our results looked at both HDD and all-flash pools. Most use cases will sit in between as a hybrid ME4 configuration. A few SSDs go a long way in accelerating HDD volumes. Should there be an application that can benefit from all-flash, organizations can easily pin volumes to a flash tier. While the performance story is strong for the entry market, the rest of the package is there as well. The GUI is easy to understand and configure, and expansion options can take our review model up to 3PB, with the ME4084 topping out at 4PB. Moreover, there’s a deep set of enterprise features. This price band has a lot of options in the marketplace, but not a lot of “very good” options. The PowerVault ME4 is a clear leader in the entry-storage market.

Dell Storage PowerVault ME4  ME4024 FC
Dell Storage PowerVault ME4  ME4024 FC
Dell Storage PowerVault ME4  ME4024 FC

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