Again in late 2021, Intel and SK hynix accomplished the primary stage of their long-awaited switch of Intel’s NAND (and NAND-based SSD) enterprise to SK hynix. That firm, in flip, took Intel’s NAND SSD property and put them below their very own subsidiary, Solidigm, who took over gross sales of Intel’s present SSD portfolio. Now, just a few months later, Solidigm is gearing as much as launch its first post-Intel SSDs, the enterprise-focused D7-P5520 and D7-P5620.
Diving proper into issues, Solidigm is basically selecting up proper the place Intel left off, each with regard to product design and product naming. Intel was already seeing strong market penetration with its D-series branding, so there’s little motive to surrender an excellent factor for the brand new Solidigm. In any case, the brand new drives are designed and marketed to fit proper in because the next-generation elements within the D7 lineup, which is Solidigm’s highest efficiency drives for the enterprise and server market.
From a pure specification standpoint, the large information with the newest era of drives is that Solidigm has doubled their capacities. The D7-P5620 might be obtainable in capacities from 1.6TB to 12.8TB, whereas the D7-P5520 will go as much as 15.36TB for its bigger kind issue drives. At this level Solidigm has not introduced what NAND they’re utilizing, however as we haven’t heard something in regards to the firm launching their 5th era NAND to switch their present 144L TLC tech, presumably that’s what’s getting used right here – particularly as Intel/Solidigm by no means launched a 144L P5600 sequence drive.
|Solidigm Enterprise SSDs|
|Kind Issue||U.2 2.5″ 15mm||U.2 2.5″ 15mm
|U.2 2.5″ 15mm|
|Interface||PCIe 4.0 NVMe 1.3c|
15.36TB (U.2 & E1L)
|NAND||Solidigm 144L TLC?||Intel 96L TLC||Solidigm 144L TLC?||Intel 144L TLC|
|Sequential Learn||7100 MB/s||7000 MB/s||7100 MB/s||7000 MB/s|
|Sequential Write||4200 MB/s||4300 MB/s||4200 MB/s||4200 MB/s|
|Random Learn (4 kB)||1.1M IOPS||1M IOPS||1.1M IOPS||930k IOPS|
|Random Write (4 kB)||220k IOPS||260k IOPS||220k IOPS||190k IOPS|
|Write Endurance||3 DWPD||3 DWPD||1 DWPD||1 DWPD|
As with earlier iterations of the D7 household, each drives are constructed from the identical platform – which means the identical controller, NAND, and firmware. The one configuration distinction between the drives is the quantity of overprovisioning, with the P5600 drives utilizing 20% overprovisioning to make sure sooner efficiency, whereas the P5500 drives use simply 4% overprovisioning to maximise capability. Consequently, the P5620 is being pitched by the corporate as a combined workload (combined learn/write) drive that may maintain as much as 3 DWPD, whereas the P5520 is geared toward workloads with extra reads than writes, with a 1 DWPD endurance.
Regardless of the distinction in overprovisioning, each drives formally carry the identical rated write efficiency: 4.2GB/second for big sequential writes, and random write IOPS of 220K. Within the case of the P5620, that is really a slight downgrade from the unique P5600, although not completely surprising given the shift from 96L NAND to what’s presumably 144L NAND. In the meantime learn speeds are up barely throughout the board, with each drives topping out at 1.1M learn IOPS, or 7.1GB/second sequential.
We don’t have any extra data from the corporate on the controller used, nonetheless primarily based on the specs, at this juncture there’s nothing to point it’s considerably completely different from the prevailing Arbordale Plus controller. Although it appears like Solidigm could also be tweaking issues in firmware barely in a different way than Intel did, as Solidigm is specializing in learn latency (particularly reads below write stress) greater than Intel. Within the case of the P5500 sequence, they’ve knocked 4K learn latency down from 84μs to 75μs for the P5520; in the meantime write latency has seen a smaller drop, saving off 1μs to deliver it all the way down to 15μs.
The launch of the P5520 additionally marks the considerably overdue introduction of EDSFF kind elements for a few of the D7 sequence drives. Together with the traditional U.2 kind issue that the drives have used for the previous few generations, the P5520 may also be obtainable within the E1.L and E1.S kind elements. The latter is new territory for Solidigm, as even within the firm’s lower-ender/higher-density D5 product lineup, they’ve solely used E1.L beforehand. The P5520 E1.S drives, in flip, will really are available two sizes: E1.S 9.5mm and E1.S 15mm. Each will supply the identical decreased capacities – 7.68TB max versus double that for U2/E1.L – nonetheless the 15mm drive will use that area for a heatsink that the 9.5mm drive lacks the room to suit. In any other case, the P5620 stays unchanged, and can solely come within the U.2 kind issue.
Wrapping issues up, in response to Solidigm the drives are already in mass manufacturing, and are even deployed with some OEMs and cloud suppliers.