LenovoEMC px12-450r NAS review and test
The LenovoEMC px12-450r was designed primarily for small and medium businesses, however, it will perfectly serve as a workhorse for storing data in many corporations, as it is equipped with a quad-core Intel Xeon processor, a backup, hot-pluggable, power supply, aggregation of four channels on Gigabit interfaces Ethernet and optional dual-interface 10GbE network expansion card. The px12-450r network array combines EMC storage technology with a hardware platform and an interface designed to speed configuration and use. This flagship device is a joint venture between Lenovo and EMC, sold until 2013 under the Iomega brand.
The LenovoEMC px12-450r specification, coupled with EMC's LifeLine corporate operating system functionality, means that the px12-450r satisfies comprehensive storage requirements for medium and small businesses and remote office configuration. With access to the EMC technology portfolio, the joint venture offers EMC Amavar data deduplication, integrated IVX visualization technology, EMC Atmos Cloud Connector connector, LifeLine-to-LifeLine copying and fault tolerance. This also applies to Lifeline developer applications. The px12-450r network array is flexible enough to integrate into existing networks as a target system for backing up, storing data, or providing high-quality image storage. At the same time, the cache memory of a solid-state drive allows you to take advantage of the aggregated bandwidth of the network interface card, with compatibility of .VSS and .VDS images with Windows and VMware host systems.
LenovoEMC px12-450r network storage can be diskless, equipped with 4 RAID 5 drives, or equipped with a 48TB capacity in a RAID 6 array. The model we are considering is equipped with an additional 10Gbase-T PCI expansion board with two interfaces that will help you evaluate the performance of a solid-state drive.
The LenovoEMC px12-450r, 2U high, comes with a 19-inch standard guide rail. The front panel provides access to 12 compartments for a 3.5-inch drive that can be used with hard drives or solid-state drives. The panel also has a power button, power LED and USB port. Each drive bay is equipped with an LED indicator to display the status and activity of the drive.
The back panel is equipped with connectors for two power supplies, which are automatically adjusted according to the input voltage. The System ID LED indicator for device identification is activated using LifeLine control software, and the reset button resets the network and security settings without the need to completely return to the factory settings.
The px12-450r is equipped with two additional USB ports on the rear panel, as well as four integrated 1GbE interfaces. The VGA port can be used in conjunction with the video monitoring function. The device under consideration makes it possible to additionally connect 10GbE ports using an expansion network card.
LenovoEMC px12-450r is easy to maintain and repair due to the modular design of the motherboard, which is easily separated from the chassis, being in the same block with expansion cards. By unscrewing the two screws, you can upgrade the px12-450r in a few minutes with our 10GBase-t additional card.
')
Lenovo EMC networked storage runs on EMC LifeLine, a Linux-based operating environment that provides built-in management and integration tools, as well as access to third-party applications. LifeLine provides access to sub-file deduplication of backup data, as well as support for integrated IVX visualization technology for simultaneous management of multiple virtual machines on the px12-450r. In addition, Windows Distributed File Network (DFS) support allows you to organize network files into a combined directory tree. LifeLine also provides additional capacity by adding USB hard drives as shared resources.
LenovoEMC px12-450r NAS can run video monitoring installed in Mindtree software. In addition, the device is supplied with the Mindtree SecureMind VSMS software with the ability to use it on one camera. The LenovoEMC px12-450r can use up to 48 IP cameras along with additional integration with the Axis Video Hosting Solution (AVHS) for security and other video applications. The LifeLine operating environment is compatible with third-party cloud services, including Amazon S3 or Mozy, as well as with the EMC Atmos Cloud Connector.
LenovoEMC Personal Cloud is a network architecture that connects other devices to your px12-450r via the Internet, including the ability to connect via iOS and Android applications. When using multiple LenovoEMC storage in a company, the single operating system of the LenovoEMC products offers several advantages: for example, two px12-450r devices located in different places can be synchronized using a private Personal Cloud as part of a disaster recovery plan.
Providing an appropriate and holistic testing environment is a key aspect of testing. If the hardware and infrastructure do not match the environment in which the equipment is deployed, the comparison may be meaningless. Our laboratory pays special attention to lenovo corporate servers , as well as infrastructure equipment, such as networks, rack space, power management parameters, and similar hardware to properly assess the quality of the device. Our testing is not paid for and not controlled by equipment manufacturers.
LenovoEMC px12-450r testing was performed on a second-generation corporate platform on the Lenovo ThinkServer RD640. This Windows-based test platform includes the latest interconnect hardware, such as the LSI 9207-8i HBA, as well as I / O scheduling optimization adapted to the best possible flash memory performance. With synthesized testing, we use FIO version 2.0.10 for Linux and version 2.0.12.2 for Windows.
In accordance with the process of testing hard disks, we previously transferred each disk to a steady state with the same load. The devices will be tested with a significant load of 16 threads with 16 queues in the stream, and then they will be tested with many variations of flows and queue depths to identify performance with low and high loads. Since hard drives reach their nominal performance levels very quickly, we only outline the main sections of each test.
The analysis of the corporate synthesized workload includes tests based on practical tasks. These tests are designed to simplify comparison with past tests, as well as with widely publicized values, such as the maximum read and write speed of 4k, and also the ratio of 70/30 to 8K read and write operations, which is commonly used in corporate drives.
4k
100% read or 100% write
100% 4k
8k 70/30
70% read 30% write
100% 8k
128k (sequential)
100% read or 100% write
100% 128k
We evaluated the performance of the 1GbE and 10GbE interfaces. To do this, we grouped the data and circuitry by test (4k, 8k, 128k) and the type of connection. In each category, 1GbE interface data is first presented, then 10GbE data. ISCSI is expected to show better performance because we use a Linux-based array. In addition, when comparing certain data, we will focus on the totals.
At the first corporate load of the 1GbE interface, for obtaining the main results, we measured a large randomly selected 4k performance sample with 100% write and 100% read. The LenovoEMC px12-450r SCSI interface provides excellent read throughput at 2,153 IOPS, although it slows down a bit when writing.
In the main segment, the average delay time with a load of 16 threads (T) / 16 queues (Q), we found the average LenovoEMC px12-450r iSCSI delay when reading 238.42 ms, which is about four times less than the SMB. The iSCSI delay in writing was 383.98 ms. compared to 311.44 for SMB.
The maximum read latency results for the LenovoEMC px12-450r SBM are slightly higher than for iSCSI, at 1,116 msec ... While writing was significantly lower than iSCSI, 3,777.5 msec.
When measuring the stability of the delay time 4k in the deviation section, the results of the LenovoEMC px12-450r SMB were 50.70 ms. when reading and 496,17 msec. when recording compared with the results of iSCSI 211, 00 msec. and 1,056.30 ms. respectively.
When testing the 10GbE interface to get the main results, we measured a large randomly selected 4k performance sample with 100% write and 100% read. The LenovoEMC px12-450r iSCSI four times exceeded the SMB in reading bandwidth (2,119 IOPS), although when writing SMB it took the lead with a slight advantage by 16 IOPS.
With a 16T / 16Q load, measurements of the average reading delay showed 241.86 ms. LenovoEMC px12-450r, which is four times less than the result of SMB. When recording, the average iSCSI delay was 5 ms. less.
When measuring the maximum delay time when reading the LenovoEMC, the px12-450r iSCSI showed the best result of 800.5 ms. However, the result when recording is 11 times higher at 47 021 ms. compared to 4,242 ms. u smb.
LenovoEMC px12-450r iSCSI showed a deviation of 222.83 ms. when reading compared to the standard deviation of 50.92 ms. u smb. When measuring the lag time stability during recording, SMB again surpassed iSCSI with a score of 582.50 ms. and 1,073.51 respectively.
Unlike the maximum load with 16 threads and 16 queues applied during the 100% test 4k test, the mixed workload tests measure performance using a wide range of combinations of threads and queues. In these tests, the workload varies from 2 threads and 2 queues to 16 threads and 16 queues. Throughout the entire 8k 70/30 test, the Lenovo EMC px12-450r iSCSI demonstrated the best throughput with a maximum of 880 IOPS and stayed near this level for almost the entire test time.
At 100% load, 8k LenovoEMC px12-450r iSCSI again demonstrated the best throughput at 28,677 IOPS when reading and 28,803 IOPS when writing.
When measuring the average delay time of the LenovoEMC px12-450r, iSCSI did not exceed 600 ms. in comparison with 875 ms. SMB.
With a different number of threads and queues, the maximum LenovoEMC px12-450r iSCSI delay time was 7,600 ms. in comparison with 13 750 msec. u smb.
On almost the entire load range of the LenovoEMC px12-450r, iSCSI and SMB are not inferior to each other. Ultimately, the SMB time delay deviation is less than 900 ms. in comparison with 1 100 msec. iSCSI.
Unlike the maximum load with 16 threads and 16 queues applied during the 100% test 4k test, the mixed workload tests measure performance using a wide range of combinations of threads and queues. In these tests, the workload varies from 2 threads and 2 queues to 16 threads and 16 queues. In this test, the LenovoEMC px12-450r iSCSI behaved consistently, often demonstrating 800 IOPS bandwidth and higher. SMB reached 700 IOPS before falling with a maximum load of up to 500 IOPS.
With a 100% load of 8k, the LenovoEMC px12-450r iSCSI bandwidth was almost four times the SMB bandwidth.
When measuring the average delay time, the LenovoEMC px12-450r iSCSI indicator did not exceed 625 ms, the SMB reached 975 ms ...
With a different number of threads and queues, the maximum LenovoEMC px12-450r iSCSI delay time was 8,000 ms. in comparison with 11 500 msec. u smb.
On almost the entire load range of the LenovoEMC px12-450r, iSCSI and SMB go side by side. SMB as a whole showed the best result before the 16T8Q load, where the maximum iSCSI deviation was lower.
The next test in our analysis of corporate synthetic load is the test of 128k, which is a sequential control of a large block of data, showing the maximum sequential transfer rate for a hard disk. With both 100% reading and 100% writing, the LenovoEMC px12-450r SMB shows the best results with 260,968 Kb / s and 345 759 Kb / s, respectively.
When testing the 10GbE LenovoEMC px12-450r interface, SMB again demonstrated better throughput, both when reading and writing, at 1 233 985 Kb / s and 1 512 465 Kb / s, respectively.
The decision to rename the Iomega product family by the name of the owner companies indicates that Lenovo and EMC are committed to this line of software products. The network storage array series enables Lenovo to offer storage that they didn’t have before and adds EMC recognition to small businesses, which could one day lead to a classic array of storage arrays and storage networks. In particular, the px12-450r target audience is on the border of small and medium businesses and corporations, where the management of a joint venture is of great importance. The px12-450r storage features a four-core Intel Xeon processor, backup, hot-swappable power, four-channel aggregation on Gigabit Ethernet interfaces, an optional dual-interface 10GbE network interface card, and EMC's influence on software development.
When testing the Lenovo EMC px12-450r, we used a number of different configurations to get the most accurate results. We tried the iSCSI and SMB protocols, expecting iSCSI results to be better because we used a Linux-based array. In addition, we checked the standard 1GbE and additional 10GbE interface. The results showed excellent performance of the LenovoEMC px12-450r, regardless of the Linux or Windows operating system, and yet with our iSCSI setting, the px12-450r gave a much higher bandwidth. This was especially noticeable when testing the 8k interface 10GbE. ISCSI throughput was almost four times higher, at more than 116,000 IOPS when reading and 91,000 IOPS when writing. iSCSI also showed the best throughput at 4k and 8k 70/30, although it lost to SMB when tested at 128k. SMB consistently maintained its advantage in measuring maximum latency and standard deviation, although iSCSI performed better on average latency at 4k and 8k.
The LenovoEMC px12-450r offers small businesses a simple but well-designed networked storage array from Lenovo and EMC. This multifunctional system is perfectly suitable for video surveillance, and also as a network data storage for Linux and Windows operating environments using the built-in 1GbE interface or the additional 10GbE.
Prices for the PX12-450r range are in the range of $ 4420 per bundle without discs, and up to $ 12,500 per complete set with 48 terabytes.
You can buy Lenovo PX12-450R from official partners, you can find and contact them through the section on the site " Where to Buy ", also for users of Habr we give a direct link to our partner where you will be advised on all Lenovo products, as well as sold network Lenovo EMC px12-450r storage at a discount for users of Habrahabr.
The primary sources of this material in the network:
English version
Russian version
The LenovoEMC px12-450r specification, coupled with EMC's LifeLine corporate operating system functionality, means that the px12-450r satisfies comprehensive storage requirements for medium and small businesses and remote office configuration. With access to the EMC technology portfolio, the joint venture offers EMC Amavar data deduplication, integrated IVX visualization technology, EMC Atmos Cloud Connector connector, LifeLine-to-LifeLine copying and fault tolerance. This also applies to Lifeline developer applications. The px12-450r network array is flexible enough to integrate into existing networks as a target system for backing up, storing data, or providing high-quality image storage. At the same time, the cache memory of a solid-state drive allows you to take advantage of the aggregated bandwidth of the network interface card, with compatibility of .VSS and .VDS images with Windows and VMware host systems.
LenovoEMC px12-450r network storage can be diskless, equipped with 4 RAID 5 drives, or equipped with a 48TB capacity in a RAID 6 array. The model we are considering is equipped with an additional 10Gbase-T PCI expansion board with two interfaces that will help you evaluate the performance of a solid-state drive.
Technical specification of LenovoEMC px12-450r:
- Form Factor 2U
- Maximum capacity: 48TB (12 x 3.5 ", support for twelve 3.5" SATA hard drives)
- Four 10/100/1000 Mbps Ethernet ports
- Quad Core E3-1265Lv2 Quad Core Intel 2.5 GHz
- RAM: 8 GB DDR3
- Possibility of two connections to a 10-gigabit network (requires installation of an additional card on the PCI bus, sold separately)
- RAID 0, 1, 10, 5, 6, hot standby, JBOD simple array mode, automatic RAID rebuilding, hot swap function.
- Standby power supply: two hot-swappable power supplies
- Power consumption (Max.: 190 W, Min.: 55 W (low speed), Peak: 260 W for 10 s
- USB 2.0: 3 ports (one front and two rear)
- LAN Standards: IEEE 802.3, IEEE 802.3u
- Supported network protocols: CIFS / SMB / Rally (Microsoft), NFS (Linux / UNIX), AFP / Bonjour (Apple), FTP, SFTP, TFTP, HTTP, HTTPS, WebDAV, Windows DFS, SNMP
- iSCSI: up to 256 nodes
- Block-level media pools: up to 32 LUN addresses per pool, no more than 128 addresses per storage.
- File-level media pools: up to 256 LUN addresses per pool, no more than 256 LUNs per storage.
- Completion: Windows Active Directory, including Active Directory Hybrid Authentication (ADHA), Trusted Domains, Microsoft Cluster Server, and support for Hyper-V Live Migration.
- AC voltage 100–240 V, 50–60 GHz
- Acoustic noise not more than 48.5 dB (A)
- VGA port for local display control of video signals using the MindTree SecureMind VMS application
- 3 year warranty
- Certificates: Windows Server 2008 R2 and Server 2012, VMware vSphere ESX 5.1 iSCSI and NAS, XenServer 5.5, 5.6 (w / MPIO), iSCSI & NFS
- Dimensions (length - width - height): 21.375 "(54.29cm) x 19.0" (48.26cm) x 3.5 "(8.89cm).
- Weight: 30.8 pounds (13.97 kg) without hard drives; 36.56 pounds (16.58 kg) with 4 hard drives; 48.08 pounds (21.81 kg) with 12 hard drives.
Design and manufacture
The LenovoEMC px12-450r, 2U high, comes with a 19-inch standard guide rail. The front panel provides access to 12 compartments for a 3.5-inch drive that can be used with hard drives or solid-state drives. The panel also has a power button, power LED and USB port. Each drive bay is equipped with an LED indicator to display the status and activity of the drive.
The back panel is equipped with connectors for two power supplies, which are automatically adjusted according to the input voltage. The System ID LED indicator for device identification is activated using LifeLine control software, and the reset button resets the network and security settings without the need to completely return to the factory settings.
The px12-450r is equipped with two additional USB ports on the rear panel, as well as four integrated 1GbE interfaces. The VGA port can be used in conjunction with the video monitoring function. The device under consideration makes it possible to additionally connect 10GbE ports using an expansion network card.
LenovoEMC px12-450r is easy to maintain and repair due to the modular design of the motherboard, which is easily separated from the chassis, being in the same block with expansion cards. By unscrewing the two screws, you can upgrade the px12-450r in a few minutes with our 10GBase-t additional card.
')
Management System and Operating System
Lenovo EMC networked storage runs on EMC LifeLine, a Linux-based operating environment that provides built-in management and integration tools, as well as access to third-party applications. LifeLine provides access to sub-file deduplication of backup data, as well as support for integrated IVX visualization technology for simultaneous management of multiple virtual machines on the px12-450r. In addition, Windows Distributed File Network (DFS) support allows you to organize network files into a combined directory tree. LifeLine also provides additional capacity by adding USB hard drives as shared resources.
LenovoEMC px12-450r NAS can run video monitoring installed in Mindtree software. In addition, the device is supplied with the Mindtree SecureMind VSMS software with the ability to use it on one camera. The LenovoEMC px12-450r can use up to 48 IP cameras along with additional integration with the Axis Video Hosting Solution (AVHS) for security and other video applications. The LifeLine operating environment is compatible with third-party cloud services, including Amazon S3 or Mozy, as well as with the EMC Atmos Cloud Connector.
LenovoEMC Personal Cloud is a network architecture that connects other devices to your px12-450r via the Internet, including the ability to connect via iOS and Android applications. When using multiple LenovoEMC storage in a company, the single operating system of the LenovoEMC products offers several advantages: for example, two px12-450r devices located in different places can be synchronized using a private Personal Cloud as part of a disaster recovery plan.
Testing Information
Providing an appropriate and holistic testing environment is a key aspect of testing. If the hardware and infrastructure do not match the environment in which the equipment is deployed, the comparison may be meaningless. Our laboratory pays special attention to lenovo corporate servers , as well as infrastructure equipment, such as networks, rack space, power management parameters, and similar hardware to properly assess the quality of the device. Our testing is not paid for and not controlled by equipment manufacturers.
LenovoEMC px12-450r testing was performed on a second-generation corporate platform on the Lenovo ThinkServer RD640. This Windows-based test platform includes the latest interconnect hardware, such as the LSI 9207-8i HBA, as well as I / O scheduling optimization adapted to the best possible flash memory performance. With synthesized testing, we use FIO version 2.0.10 for Linux and version 2.0.12.2 for Windows.
- 2 x Intel Xeon E5-2620 (2.0GHz, 15MB Cache, 6 cores)
- Intel C602 System Controller
- Memory 16GB (2 x 8GB) 1333MHz DDR3 Register Memory
- Windows Server 2008 R2 SP1 64-bit, Windows Server 2012 Standard, CentOS 6.3 64-bit
- 100GB Micron RealSSD P400e Boot SSD
- LSI 9211-4i SAS / SATA 6.0Gb / s HBA (for boot SSDs)
- LSI 9207-8i SAS / SATA 6.0Gb / s HBA (for SSD or HDD testing)
- Intel X540-T2 10GbE PCIe 2.1 Adapter
- Adapter Mellanox ConnectX-3 10GbE PCIe 3.0
- Adapter Mellanox ConnectX-3 InfiniBand PCIe 3.0
Corporate Synthesized Workload Analysis
In accordance with the process of testing hard disks, we previously transferred each disk to a steady state with the same load. The devices will be tested with a significant load of 16 threads with 16 queues in the stream, and then they will be tested with many variations of flows and queue depths to identify performance with low and high loads. Since hard drives reach their nominal performance levels very quickly, we only outline the main sections of each test.
Preliminary training and basic tests
- Throughput (total I / O operations per second (IOPS) when performing read and write)
- Average latency (average latency while reading and writing)
- Maximum Delay Time (Maximum Delay Time for Read and Write)
- The standard deviation of the delay time (The standard deviation of the delay time when performing read and write)
The analysis of the corporate synthesized workload includes tests based on practical tasks. These tests are designed to simplify comparison with past tests, as well as with widely publicized values, such as the maximum read and write speed of 4k, and also the ratio of 70/30 to 8K read and write operations, which is commonly used in corporate drives.
4k
100% read or 100% write
100% 4k
8k 70/30
70% read 30% write
100% 8k
128k (sequential)
100% read or 100% write
100% 128k
We evaluated the performance of the 1GbE and 10GbE interfaces. To do this, we grouped the data and circuitry by test (4k, 8k, 128k) and the type of connection. In each category, 1GbE interface data is first presented, then 10GbE data. ISCSI is expected to show better performance because we use a Linux-based array. In addition, when comparing certain data, we will focus on the totals.
At the first corporate load of the 1GbE interface, for obtaining the main results, we measured a large randomly selected 4k performance sample with 100% write and 100% read. The LenovoEMC px12-450r SCSI interface provides excellent read throughput at 2,153 IOPS, although it slows down a bit when writing.
In the main segment, the average delay time with a load of 16 threads (T) / 16 queues (Q), we found the average LenovoEMC px12-450r iSCSI delay when reading 238.42 ms, which is about four times less than the SMB. The iSCSI delay in writing was 383.98 ms. compared to 311.44 for SMB.
The maximum read latency results for the LenovoEMC px12-450r SBM are slightly higher than for iSCSI, at 1,116 msec ... While writing was significantly lower than iSCSI, 3,777.5 msec.
When measuring the stability of the delay time 4k in the deviation section, the results of the LenovoEMC px12-450r SMB were 50.70 ms. when reading and 496,17 msec. when recording compared with the results of iSCSI 211, 00 msec. and 1,056.30 ms. respectively.
When testing the 10GbE interface to get the main results, we measured a large randomly selected 4k performance sample with 100% write and 100% read. The LenovoEMC px12-450r iSCSI four times exceeded the SMB in reading bandwidth (2,119 IOPS), although when writing SMB it took the lead with a slight advantage by 16 IOPS.
With a 16T / 16Q load, measurements of the average reading delay showed 241.86 ms. LenovoEMC px12-450r, which is four times less than the result of SMB. When recording, the average iSCSI delay was 5 ms. less.
When measuring the maximum delay time when reading the LenovoEMC, the px12-450r iSCSI showed the best result of 800.5 ms. However, the result when recording is 11 times higher at 47 021 ms. compared to 4,242 ms. u smb.
LenovoEMC px12-450r iSCSI showed a deviation of 222.83 ms. when reading compared to the standard deviation of 50.92 ms. u smb. When measuring the lag time stability during recording, SMB again surpassed iSCSI with a score of 582.50 ms. and 1,073.51 respectively.
Unlike the maximum load with 16 threads and 16 queues applied during the 100% test 4k test, the mixed workload tests measure performance using a wide range of combinations of threads and queues. In these tests, the workload varies from 2 threads and 2 queues to 16 threads and 16 queues. Throughout the entire 8k 70/30 test, the Lenovo EMC px12-450r iSCSI demonstrated the best throughput with a maximum of 880 IOPS and stayed near this level for almost the entire test time.
At 100% load, 8k LenovoEMC px12-450r iSCSI again demonstrated the best throughput at 28,677 IOPS when reading and 28,803 IOPS when writing.
When measuring the average delay time of the LenovoEMC px12-450r, iSCSI did not exceed 600 ms. in comparison with 875 ms. SMB.
With a different number of threads and queues, the maximum LenovoEMC px12-450r iSCSI delay time was 7,600 ms. in comparison with 13 750 msec. u smb.
On almost the entire load range of the LenovoEMC px12-450r, iSCSI and SMB are not inferior to each other. Ultimately, the SMB time delay deviation is less than 900 ms. in comparison with 1 100 msec. iSCSI.
Unlike the maximum load with 16 threads and 16 queues applied during the 100% test 4k test, the mixed workload tests measure performance using a wide range of combinations of threads and queues. In these tests, the workload varies from 2 threads and 2 queues to 16 threads and 16 queues. In this test, the LenovoEMC px12-450r iSCSI behaved consistently, often demonstrating 800 IOPS bandwidth and higher. SMB reached 700 IOPS before falling with a maximum load of up to 500 IOPS.
With a 100% load of 8k, the LenovoEMC px12-450r iSCSI bandwidth was almost four times the SMB bandwidth.
When measuring the average delay time, the LenovoEMC px12-450r iSCSI indicator did not exceed 625 ms, the SMB reached 975 ms ...
With a different number of threads and queues, the maximum LenovoEMC px12-450r iSCSI delay time was 8,000 ms. in comparison with 11 500 msec. u smb.
On almost the entire load range of the LenovoEMC px12-450r, iSCSI and SMB go side by side. SMB as a whole showed the best result before the 16T8Q load, where the maximum iSCSI deviation was lower.
The next test in our analysis of corporate synthetic load is the test of 128k, which is a sequential control of a large block of data, showing the maximum sequential transfer rate for a hard disk. With both 100% reading and 100% writing, the LenovoEMC px12-450r SMB shows the best results with 260,968 Kb / s and 345 759 Kb / s, respectively.
When testing the 10GbE LenovoEMC px12-450r interface, SMB again demonstrated better throughput, both when reading and writing, at 1 233 985 Kb / s and 1 512 465 Kb / s, respectively.
Conclusion
The decision to rename the Iomega product family by the name of the owner companies indicates that Lenovo and EMC are committed to this line of software products. The network storage array series enables Lenovo to offer storage that they didn’t have before and adds EMC recognition to small businesses, which could one day lead to a classic array of storage arrays and storage networks. In particular, the px12-450r target audience is on the border of small and medium businesses and corporations, where the management of a joint venture is of great importance. The px12-450r storage features a four-core Intel Xeon processor, backup, hot-swappable power, four-channel aggregation on Gigabit Ethernet interfaces, an optional dual-interface 10GbE network interface card, and EMC's influence on software development.
When testing the Lenovo EMC px12-450r, we used a number of different configurations to get the most accurate results. We tried the iSCSI and SMB protocols, expecting iSCSI results to be better because we used a Linux-based array. In addition, we checked the standard 1GbE and additional 10GbE interface. The results showed excellent performance of the LenovoEMC px12-450r, regardless of the Linux or Windows operating system, and yet with our iSCSI setting, the px12-450r gave a much higher bandwidth. This was especially noticeable when testing the 8k interface 10GbE. ISCSI throughput was almost four times higher, at more than 116,000 IOPS when reading and 91,000 IOPS when writing. iSCSI also showed the best throughput at 4k and 8k 70/30, although it lost to SMB when tested at 128k. SMB consistently maintained its advantage in measuring maximum latency and standard deviation, although iSCSI performed better on average latency at 4k and 8k.
Benefits
- Easy setup and management for quick launch
- Channel aggregation and other enterprise features with EMC LifeLine
- Ease of upgrading and maintenance thanks to the retractable controller unit
disadvantages
- Compatible with 10GBase-T 10GbE interface only
Conclusion
The LenovoEMC px12-450r offers small businesses a simple but well-designed networked storage array from Lenovo and EMC. This multifunctional system is perfectly suitable for video surveillance, and also as a network data storage for Linux and Windows operating environments using the built-in 1GbE interface or the additional 10GbE.
Where to buy, prices
Prices for the PX12-450r range are in the range of $ 4420 per bundle without discs, and up to $ 12,500 per complete set with 48 terabytes.
You can buy Lenovo PX12-450R from official partners, you can find and contact them through the section on the site " Where to Buy ", also for users of Habr we give a direct link to our partner where you will be advised on all Lenovo products, as well as sold network Lenovo EMC px12-450r storage at a discount for users of Habrahabr.
The primary sources of this material in the network:
English version
Russian version
Source: https://habr.com/ru/post/223159/
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