1. Introduction: Domestic enterprise-level PCIe 5 for high-performance business applications0 ssd
Memblaze is a very well-known enterprise-level PCIe SSD manufacturer in China, and because of its brand identity, many players also affectionately call it "Little Dolphin", which is deeply loved by many enthusiasts. A year ago, we had tested the 3. of Ephemera Pblaze6 65362TB capacity point, it is this test that allows us to have more knowledge of enterprise-class SSD.
Related reading: Don't slow down the whole process!Yiheng Chuangyuan pblaze6 6536 32TB Review: It's Time to Whole Up an Enterprise SSD.
With PCIe 5With the advent of the 0 era, Yiheng Chuangyuan also took the lead in launching enterprise-level PCIe 50 SSD - PBLAZE7 7940, which is specially developed for various high-performance business applications of enterprises, such as virtualization, databases, large models, etc. According to the different write pressures of the business, the PBLAZE7 7940 is divided into two sub-series: PBLAZE7 7940 with 1 DWPD and PBLAZE7 7946 with 3 DWPD2. Capacity 64tb。
PCIe 5The performance of the new generation of SSDs with 0 interface is undoubtedly the most important point of our attention. According to the official introduction of Yiheng Chuangyuan, PBLAZE7 7940 has a sequential read speed of 14GB s and a sequential write speed of 10GB s, with a 4K random read performance of 2800K IOPS and a 4K random write performance of up to 700K IOPS.
From the book parameters alone, the PBLAZE7 7940 has reached the current PCIe 50 enterprise-class SSD's leading level of performance.
Another highlight of the PBLAZE7 7940 is the adoption of YMTC NAND. Just as Zhitai shines in the consumer SSD market, Yiheng Chuangyuan has applied the YMTC crystal stack XTACKING 3D NAND, and has successively created a number of enterprise-level PCIe SSDs, all of which have very excellent performance.
PBLAZE7 7940 is the first PCIe 50 SSD, being able to take the lead in applying YMTC NAND is not only a recognition of domestic flash memory technology, but also a test of the company's own technical strength.
u.2 is a commonly used product form for enterprise SSD, and it can be the same as 2The 5-inch SATA and SAS hard drives share the same server backplane and hard drive bay, simplifying deployment. With the continuous improvement of PCIe interface speed, the EDSFF family has been added to the enterprise SSD product form, such as the PBLAZE7 7940 series SSD, which also provides E1s and e3s in two versions.
pblaze7 7946 6.The write life of 4TB is 5 years3 DWPD, which is a common performance indicator for enterprise SSDs, which refers to the maximum number of times a full disk can be written per day on average during the product warranty period using the JEDEC enterprise SSD write life industry test method, which is converted to 64TB x 3 x 365 x 5, which is 35040TBW. If you write 100% sequentially, the write life will be doubled.
In terms of product reliability, the PBLAZE7 7940 series SSD has an MTBF of 2 million hours (7x24 hours of uninterrupted use) in a 55 use environment. The use of full-path data protection technology and end-to-end data protection technology makes the Uber (irreparable data error rate) of the PBLAZE7 7940 series 10-17, and the data integrity reaches 100 times the industry standard for consumer-grade SSDs.
In terms of enterprise-class features, the PBLAZE7 7940 Series SSDs support NVMe 20 protocol specification, NVME-MI 12B out-of-band management, AES-XTS-256 data self-encryption, secure erasure, etc., and will add important enterprise-level functions such as SR-IOV, 128K atomic write, copy command, and Get LBA status to further improve the execution efficiency of enterprise services, enhance data integrity, and simplify deployment, management, and maintenance.
The detailed specifications of the PBLAZE7 7940 series enterprise SSD are as follows:
2. Picture appreciation: Optimized heat dissipation design, with YMTC enterprise-grade TLC particles.
This article reviews this piece of PBLAZE7 7940 using 25 inch U2 shapes, and traditional 2The 5-inch SATA SSD is the same size, but with a thickness of 15mm.
With PCIe 5With the arrival of 0, the CPU performance and storage performance of the server are improving. In general, u2 SSDs will be deployed in batches on the front panel bracket of the server, which will have a certain impact on the air intake duct of the server. The PBLAZE7 7940 SSD enclosure has a large number of heatsink-like designs, which not only increases the contact area between the SSD and the air, but also greatly increases the air intake of the server.
The SSD also has openings at both ends, so that the heat dissipation airflow can pass through the inside of the SSD, accelerating the removal of heat generated by the SSD's operation.
The PBLAZE7 7940 has a dense groove + bulge design on the back.
u.The 2 interface, also known as SFF-8639, is derived from SATA and SAS, and is very common in the enterprise market, and there are not many consumer motherboards that support it, but it can be transferred to the traditional PCIe interface as well as M2 interfaces.
The disassembled heat sink (shell) is densely covered with thermal conductive adhesive, and every DRAM, NAND and main control are taken into account.
Marvell's BR**ERA?SC5 master.
SK hynix's DDR4 ECC DRAM cache, with a single capacity of 1GB, a total of 9 on the front and back 2 sides, supports ECC verification to prevent data from being wrong in DRAM**.
YMTC Crystal Stack XTACKING X3-9070 NAND, 8 on the front and back, a total of 16 chips. It is the most advanced 3D NAND of YMT, with an interface speed of up to 2400MT S, with 16 channels of main control and SSD's own excellent circuit design, which can fully meet PCIe 5Ultra-high bandwidth of 0 x4.
Most motherboards don't have a U2 interfaces, so during the test, we used a PCIe riser card.
3. FIO benchmark performance test: 4K random read 2806K IOPS, 4K random write 725K IOPS
Consider that conventional testing software may not be able to take full advantage of PCIe 50 SSD full performance, so we have set up a Linux test environment to test with FIO, take a look at this PBLAZE7 7946 6Whether the performance of the 4TB SSD is up to standard.
FIO is the most commonly used benchmark performance testing tool for enterprise-level SSDs, which can simulate a variety of SSD test methods by configuring different task numbers, queue depths, different test data sizes, test ranges, as well as different read/write methods, read/write ratios, test durations, etc., and rigorous pre-processing is also more helpful to reflect the real performance level of SSDs.
Sequential performance test: Before the test, format the SSD, use 128K sequential write twice as preprocessing, and then immediately carry out the test of 128K sequential write and 128K sequential read, preprocessing and formal test are carried out continuously, and before the performance record of each formal test link, a 1-minute preheating process will be added to eliminate the impact of SSD background GC and other operations on the test results to the greatest extent.
128k sequential read.
In order to extract the highest performance, the test directly uses a queue depth of 512 and a number of tasks of 1.
The results show that pblaze7 7946 6The maximum sequential read speed of 4TB is 13481 mib s, which is about 1414GB s, the lowest sequential read speed is 13396mib s, which is about 1405GB s, the average sequential read speed is 13460 mib s, which is about 1411GB s, reaching the official value.
p.s.Interspersed here is a small knowledge point, MIB is a unit of capacity in binary, 1MIB = 1,024kib = 1,048,576B;MB is a unit of capacity in decimal system, 1MB = 1,000KB = 1000,000B. GiB, TIB and GB, TB, and so on. The MB S and GB S we commonly use refer to the performance in the decimal system.
128k sequential writes.
pblaze7 7946 6.The maximum sequential write speed of 4TB is 10700MIB S, which is about 1122GB s, the lowest sequential write speed is 10222mib s, which is about 1072GB s, with an average sequential write speed of 10540Mib s, which is about 1105gb/s。Once the SSD reaches steady state, the write speed remains at a very smooth level at all times.
In the random performance test session, format the SSD before the test, and use high-pressure 4K random write to the whole disk at least twice as a preprocess, with the pblaze7 7946 6For example, the 4K random write performance of 4TB is 700K IOPS, and it takes 6,400,000,000KB (capacity) for two full disk preprocessing times x 2 times 700K IOPS 4K seconds, rounded up, for a total of 5000 seconds.
During the pre-processing period, the SSD's 4K random write performance will drop from a relatively high value to 700K IOPS after about one full disk write, and after the second full disk write is completed, the subsequent formal test can be started immediately. The pre-processing is also carried out continuously with the formal test, and the pre-heating process is carried out for 1 minute before the performance record of each formal test item to eliminate the impact of SSD background GC and other operations on the test results.
4k random read.
QD32 is used for 4K random reads, and the number of tasks is 16, simulating concurrent access under high pressure. The results show that pblaze7 7946 6The highest 4K random read performance of 4TB reaches 2868K IOPS, the lowest is 2746K IOPS, and the average is 2806K IOPS, reaching the official value.
4k random write.
4K Random Write Test Session, Pblaze7 7946 6The 4TB has a maximum write speed of 753K IOPS at steady state, a minimum of 692K IOPS, and an average of 725K IOPS, which is also slightly higher than the official value.
4k random 70:30 mixed read-write test.
4k random mixed test, select queue depth 64, number of tasks 8, test duration of 4200 seconds, total read data 143tib, a total of 6 data written2tib, 70% and 30% read and write ratios, respectively.
4k random read, pblaze7 7946 64TB has a maximum of 1161K IOPS, a minimum of 890K IOPS, and an average of 913K IOPSIn terms of 4K random writes, the highest is 502K IOPS, the lowest is 374K IOPS, and the average is 391K IOPSThis adds up to 1304K IOPS.
The final FIO test results are summarized below:
This graph needs to be redone, MB s is the performance of the decimal, and the values taken in the graph are under binary, that is, MIB S, which needs to be converted.
Tested by FIO, Pblaze7 7946 6The sequential read/write performance of the 4TB SSD, the 4K random read/write performance, and the sequential write performance of up to 11GB S are even more impressive
4. Routine test of Windows platform: the maximum write speed is 11GB S, and the speed will not be dropped during the whole process.
Compared with FIO, the SSD performance test tools commonly used on the Windows platform will be closer to the usage scenarios of individual users. However, it should be noted that enterprise SSDs do not usually use SLC cache for write acceleration, and all read and write operations during the test process are directly performed in the TLC area, which is not the same as the short-term high performance of consumer-grade SSDs accelerated with the help of SLC cache, and the test results of the two are not directly comparable.
The test platform is as follows:
1、crystaldiskmark
CrystalDiskMark Test Session, Pblaze7 7946 6The sequential read speed of the 4TB SSD broke through the 14GB S mark, and the sequential write speed also exceeded the official value of 11189MB SSince CrystalDiskMark is not tested for SSD steady-state, and is also affected by file systems such as NTFS, there is a certain difference between the 4K random performance and the official value, but overall, the 4K random read performance of 2284K IOPS and the 4K random write performance of 959K IOPS in the unsteady state are already very strong.
The other 64GB test is not stressful for an SSD of this class, and most of the data is even better than the 1GB test.
2、as ssd benchmark
It may be that the AS SSD benchmark needs to be updated, and it did not play the performance level that this pblaze7 7946 should have in the test, just look at the test data.
On the left is the 1GB capacity test, the total score of the AS SSD benchmark is 10718, and the highest sequential read and write speeds are 9727MB s and 8305MB s, respectively, and the 4K random read and write speeds are 58MB s and 311MB s.
On the right is the 10GB capacity test, with a total score of 10779. The maximum sequential read and write speeds are 10102MB s and 8255MB s, respectively, and the 4K random read and write speeds are 60MB s and 313MB s, respectively.
In the 10GB test, the sequential read speed exploded, resulting in no MB S units being displayed.
3、atto disk benchmark
In this session, the data from cohort depths 4 and 16 were tested, respectively.
16 queues in depth test, for 05kb small file read/write, pblaze7 7946 6A 4TB SSD can also achieve more than 50MB s of write and 145MB of read.
At 16k, the write reaches 345GB s with a read speed of 225gb/s。Starting at 512kb, the write speed is stable at 9Around 8GB s, the read speed can reach 125GB s or more.
dmark storage benchmark
The 3DMark storage test is mainly to test the read and write performance of the game, pblaze7 7946 6The 4TB SSD has an overall score of 3155 points, which is higher than most consumer SSDs, with an average bandwidth of 541MB s, especially when it comes to mobile gaming, where the bandwidth can reach 3100MB s. For reference, most enterprise-class PCIe SSDs have a 3DMark test score of 2000+ levels.
5、aida64 disk benchmark linear write
AIDA64 Disk Benchmark Linear Write is used to measure the sustained write speed and stability of an SSD without file system interference. At present, the consumer SSDs on the market can use this software to expose the real slow speed.
We did 2 tests, the first time we used the cyclic constant test, we did 2 full disk writes, and then we turned off the loop option and immediately performed the second test, which is 3 consecutive full disk writes.
Even so, pblaze7 7946 6The 4TB SSD was also very stable in the AIDA64 Disk Benchmark Linear Write test, with write speeds mostly in a straight line.
In a full-pressure write of up to 73 minutes and 55 seconds, pblaze7 7946 6The maximum write speed of 4TB is 9116MB s, the minimum is 8755MB s, and the average write speed is 8970MB s, with fluctuations of no more than 4%, which is very smooth.
Even the PCIe 5 on the market, which is known as a consumer-grade ceiling0 SSD, the lowest speed also dropped below 1GB s in this test, and it fluctuated up and down very dramatically.
6. PCMARK 10 disk performance consistency.
The PCMark 10 disk performance consistency test is a long-term high-load test under Windows operating system. It mainly tests the performance changes of the SSD in different stages, such as the initial stage (empty disks), the speed down stage (the amount of data written gradually increases), the steady-state stage (randomly filled with valid and invalid data), and the performance recovery stage.
There are two full filling processes before the start of the test and one full filling process at the end, and the whole test cycle is about 20 times.
The measured time was 3 hours and 53 minutes, and a total of 53TB of data was written, pblaze7 7946 6The total score of the 4TB SSD is 3244, the bandwidth is 762MB s, and the access time is 76us.
Below we will export the detailed data for analysis.
Large File Disk Copy Test, pblaze7 7946 64TB SSDs can show high performance consistency in the stages of non-steady, transition to steady-state, and steady-state, almost in a straight line.
In the write-only test, the speed is basically stable at about 5000MB s.
When doing a mixed read and write test, the speed was between 3300 and 3400mb s.
In the in-disk copy test of small fragmented files, pblaze7 7946 6The 4TB SSD is also very stable at all stages.
When the write-only test is performed, it basically shows a straight line at 300MB s
When performing a mixed read-write test, the speed remained around 500mb s.
Photoshop heavy load test, pblaze7 7946 6The 4TB SSD also exhibits a high degree of consistency, settling at 1000MB s with only slight fluctuations.
5. Full file copy and temperature test: Maintain the highest level of Windows throughout the process.
1. Write the test on the whole disk.
Compared with the benchmark score, the impact of file copy speed on the SSD experience will be more intuitive. At first we didn't have an equivalent or larger capacity of 64tb pcie 5.0 ssd, so at the very beginning we chose to write 4 first21TB file, so that the remaining space of the SSD is controlled at 162tb。
Next, we made a one-time copy of the Seagate Coldplay 530 2TB SSD6TB file come over and use up this piece of 6 as much as possible4TB of available space for enterprise disks.
At the beginning of writing, the copy speed remains at around 4 GBS.
In the final stage of writing, the SSD has less than 30GB of free space, but the write speed is still up to 399gb/s。
Throughout the copy process, the write speed of the SSD remains in a straight line with very little fluctuation, with a minimum copy speed of 376GB s, and the maximum speed is 43gb/s。
After completing all copy tasks, pblaze7 7946 6Only 4TB SSD remains8GB of free space, less than 0 of the total capacity3%。
Almost all consumer-grade TLC and QLC SSDs on sale today experience slowdown, which is known as slow write speed, when making full file copies.
As mentioned earlier, enterprise SSDs don't use SLC cache for write acceleration, hence the PBLAZE7 7946 6The 4TB SSD has maintained a write speed of 4GB S from beginning to end, completely crushing many consumer SSDs with its strength.
Subsequently, we received another piece of pblaze7 7940 768TB SSD, so the second round of full-disk copy testing began.
The data disk is pblaze7 7940 768TB, the amount of copy data is 582tib (binary capacity).
We make four data copies at the same time, and we can see that the speed of each copy is very stable, maintaining at 1Gb s, and the total speed is 4Gb s.
After the first copy is completed, the speed of the remaining three copies has been increased, but the total speed is still 4 GBS.
When all copy tasks are nearing completion, the speed is still 4 GBS.
After the write is complete, pblaze7 7946 6Of the 4TB of usable capacity, only 18GB remains, which is less than 0 of the total capacity3%。
File copying and pasting is a seemingly simple, but in fact complex process, which requires the participation of the system's CPU and memory throughout the process. Perhaps in order to ensure the basic smoothness of the Windows experience, using the default file copy-paste command, its performance ceiling may be 4GBS, which is also mentioned in some other ** self reviews on the Internet, and still needs to be confirmed.
2. Temperature test.
In standby, pblaze7 7946 6The 4TB SSD temperature is around 46 degrees. In the high-load read/write state, the maximum temperature is 63 degrees.
If the heat accumulation inside the case is severe, it is recommended that you install a case fan to dissipate heat. Of course, in the server, this kind of SSD has a very violent system fan to suppress.
6. Summary: The best performing SSD we have tested
This is the first enterprise-grade, PCIe 5 we've tested0 SSD, it is not from Samsung, Kioxia and other SSD giants, but from our domestic manufacturers, excellent performance parameters, the use of YMTC NAND, but also let us know this "little dolphin" PBLAZE7 7946 6The 4TB SSD is full of anticipation.
In terms of appearance, although the PBLAZE7 7946 is similar to the previously evaluated PBLAZE6 6530, it can be seen that it has been comprehensively strengthened in terms of heat dissipation structure, which not only meets its own heat dissipation needs, but also has a comprehensive impact on PCIe 50 The heat dissipation requirements brought about by the higher performance of the server have been fully considered.
Whether you are an enterprise or an individual user, write lifetime and performance stability under continuous operation are very important metrics when purchasing an SSD.
pblaze7 7946 6.Based on the application of YMTC NAND, 4TB provides a write life of 3 DPWD, supporting up to 19 per dayThe 2TB random data write not only meets the writing pressure requirements of the enterprise's regular business, but also far exceeds the average daily data writing volume of ordinary individual users.
In the FIO test, Pblaze7 7946 6The 4TB exhibits 4K random read performance of 2806K IOPS, 4K random write performance of 725K IOPS, and 14The sequential read bandwidth of 1Gb s and the sequential write bandwidth of 11Gb S both meet or exceed the nominal value of the product, and the performance is very solid.
Even when it comes to the Windows platform test, the PBLAZE7 7946 also showed very good results in the CrystalDiskmark, ATTO Disk Benchmark, AS SSD Benchmark and other tests, and some test items even exceeded the performance range that the test software could display normally.
In the subsequent AIDA64 Linear Write and PCMARK10 disk consistency tests, the PBLAZE7 7946 also deserves the title of enterprise-class SSD, and always maintains a high and stable performance level during the continuous writing process.
This test pblaze7 7946 6For a 4TB SSD, we write more than 200TB of data in total, and to complete a regular test of a consumer-grade SSD, we usually only need to write no more than 10TB of data.
Overall, this Pblaze7 7946 6The 4TB SSD has reached the current PCIe 5 in terms of read and write performance and stabilityThe flagship level of 0 SSD, it is also the best performing SSD product we have tested.
Looking back on the development of Yiheng Chuangyuan for more than ten years, the company has won the recognition of many enterprise customers with its solid quality, and has also won the recognition of many enterprise customers with its solid quality, and has also won a very good reputation among individual enthusiast groups.
As a veteran domestic enterprise-level PCIe SSD manufacturer, Yiheng Chuangyuan is also actively embracing domestic technology, building flash storage products with stronger performance and better quality with its rich experience in enterprise-level PCIe SSD product development and testing, and pouring strength into the high-quality development of the domestic flash memory market ecology.
There is no doubt that this PBLAZE7 7940 series enterprise-grade PCIe 50 SSD will also become a shining pearl on the road to the development of domestic flash storage technology.