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Benchmarks of Samsung PM983 960GB SSD
Samsung MZQLB960HAJR-00007 came up across the water. It is one of the PM983 series SSD for enterprise use that has U.2 connector and 960GB capacity. Now I haven't been satisfied with present SATA SSD on my server because I upgraded my LAN to 40GbE, so I couldn't help but get it.
Actually recent consumer M.2 SSDs are faster than the PM983 in term of simply comparison, but I wanted a reliability-oriented product to protect my data or avoid unreasonable troubles. Then, I had found seller tested used one approximate at 10000 yen on ebay, so I had to order it. I could also get a brand-new PM963 or PM953 series at the same price, but their performances are distinct different with PM983. I think it was pretty good deal. The specs is bellow:
- Sequential access speed
- Read 3000MB/s
- Write 1050MB/s
- Random access speed
- Read 400000 IOPS
- Write 40000 IOPS
- 1.3 DWPD (TBW=1366TB)
- TLC (3bit MLC VNAND)
I'd ordered the SSDs on 2nd September, and received them on 14th. They looked good. Their written bytes were less than 1TB. I can say the overall quality is good.
Crystal Disk Mark 6.0.2 x64
| 1GB |  | CrystalDiskMark 6.0.2 x64 (C) 2007-2018 hiyohiyo
Sequential Read (Q= 32,T= 1) : 3477.878 MB/s
Sequential Write (Q= 32,T= 1) : 1343.090 MB/s
Random Read 4KiB (Q= 8,T= 8) : 1420.408 MB/s [ 346779.3 IOPS]
Random Write 4KiB (Q= 8,T= 8) : 1031.596 MB/s [ 251854.5 IOPS]
Random Read 4KiB (Q= 32,T= 1) : 284.364 MB/s [ 69424.8 IOPS]
Random Write 4KiB (Q= 32,T= 1) : 249.212 MB/s [ 60842.8 IOPS]
Random Read 4KiB (Q= 1,T= 1) : 47.538 MB/s [ 11606.0 IOPS]
Random Write 4KiB (Q= 1,T= 1) : 144.743 MB/s [ 35337.6 IOPS]
Test : 1024 MiB [G: 0.0% (0.1/894.2 GiB)] (x5) [Interval=0 sec]
Date : 2019/09/15 22:02:39
OS : Windows 10 Professional [10.0 Build 18362] (x64)
SAMSUNG MZQLB960HAJR-00007 (PCIe 3.0)
|
|---|---|---|
| 32GB |  | CrystalDiskMark 6.0.2 x64 (C) 2007-2018 hiyohiyo
Sequential Read (Q= 32,T= 1) : 3474.642 MB/s
Sequential Write (Q= 32,T= 1) : 1156.368 MB/s
Random Read 4KiB (Q= 8,T= 8) : 1423.327 MB/s [ 347491.9 IOPS]
Random Write 4KiB (Q= 8,T= 8) : 388.278 MB/s [ 94794.4 IOPS]
Random Read 4KiB (Q= 32,T= 1) : 291.644 MB/s [ 71202.1 IOPS]
Random Write 4KiB (Q= 32,T= 1) : 172.880 MB/s [ 42207.0 IOPS]
Random Read 4KiB (Q= 1,T= 1) : 47.276 MB/s [ 11542.0 IOPS]
Random Write 4KiB (Q= 1,T= 1) : 136.357 MB/s [ 33290.3 IOPS]
Test : 32768 MiB [G: 0.0% (0.1/894.2 GiB)] (x5) [Interval=0 sec]
Date : 2019/09/15 22:03:08
OS : Windows 10 Professional [10.0 Build 18362] (x64)
SAMSUNG MZQLB960HAJR-00007 (PCIe 3.0)
|
AS SSD Benchmark 2.0.6485.19676
| 1GB |  | AS SSD Benchmark 2.0.6485.19676 ------------------------------ Name: SAMSUNG MZQLB960HAJR-00007 Firmware: EDA5202Q Controller: stornvme Offset: 16384 K - OK Size: 894.25 GB Date: 2019/09/15 22:03:59 Note: MZQLB960HAJR-00007 ------------------------------ Sequential: ------------------------------ Read: 2569.63 MB/s Write: 1294.86 MB/s ------------------------------ 4K: ------------------------------ Read: 41.92 MB/s Write: 113.66 MB/s ------------------------------ 4K-64Threads: ------------------------------ Read: 1365.31 MB/s Write: 1254.64 MB/s ------------------------------ Access Times: ------------------------------ Read: 0.036 ms Write: 0.034 ms ------------------------------ Score: ------------------------------ Read: 1664 Write: 1498 Total: 3951 ------------------------------ | AS SSD Benchmark 2.0.6485.19676 ------------------------------ Name: SAMSUNG MZQLB960HAJR-00007 Firmware: EDA5202Q Controller: stornvme Offset: 16384 K - OK Size: 894.25 GB Date: 2019/09/15 22:04:22 Note: MZQLB960HAJR-00007 ------------------------------ 16MB ------------------------------ Read: 160.60 iops Write: 80.93 iops ------------------------------ 4K: ------------------------------ Read: 10731 iops Write: 29098 iops ------------------------------ 4K-64Threads: ------------------------------ Read: 349520 iops Write: 321189 iops ------------------------------ 512B ------------------------------ Read: 27858 iops Write: 29645 iops ------------------------------ Score: ------------------------------ Read: 1664 Write: 1498 Total: 3951 ------------------------------ |
|---|---|---|---|
| 10GB |  | AS SSD Benchmark 2.0.6485.19676 ------------------------------ Name: SAMSUNG MZQLB960HAJR-00007 Firmware: EDA5202Q Controller: stornvme Offset: 16384 K - OK Size: 894.25 GB Date: 2019/09/15 22:04:08 Note: MZQLB960HAJR-00007 ------------------------------ Sequential: ------------------------------ Read: 2857.39 MB/s Write: 1275.96 MB/s ------------------------------ 4K: ------------------------------ Read: 41.43 MB/s Write: 114.74 MB/s ------------------------------ 4K-64Threads: ------------------------------ Read: 955.91 MB/s Write: 687.14 MB/s ------------------------------ Access Times: ------------------------------ Read: 0.038 ms Write: 0.344 ms ------------------------------ Score: ------------------------------ Read: 1283 Write: 929 Total: 2796 ------------------------------ | AS SSD Benchmark 2.0.6485.19676 ------------------------------ Name: SAMSUNG MZQLB960HAJR-00007 Firmware: EDA5202Q Controller: stornvme Offset: 16384 K - OK Size: 894.25 GB Date: 2019/09/15 22:04:43 Note: MZQLB960HAJR-00007 ------------------------------ 16MB ------------------------------ Read: 178.59 iops Write: 79.75 iops ------------------------------ 4K: ------------------------------ Read: 10607 iops Write: 29373 iops ------------------------------ 4K-64Threads: ------------------------------ Read: 244714 iops Write: 175909 iops ------------------------------ 512B ------------------------------ Read: 26622 iops Write: 2910 iops ------------------------------ Score: ------------------------------ Read: 1283 Write: 929 Total: 2796 ------------------------------ |
A cache capacity on the SSD is unknown.
Its speed was stable in 1GB test as far as I tested it several times with CrystalDiskMark. However, in 32GB test, there were variation result particularly on write speed. It was because of a cache overflow, I guess. It slowed down to 60MB/s in the worst case of a 4K1T writing test.
For your information, a result the SSD connected with PCIe 2.0x4 is below:
Initially I didn't know the reason why the SSD was slow because I didn't notice it was connected with that.