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Synology DS1019+ Review
Synology this week is launching the DS1019+, a 5-bay counterpart to last year's 4-bay DS918+. Like most of the company's "Plus" series devices, it is aimed at higher-end home users and small businesses with a price (without drives) of $649.99.
Synology loaned us a review unit of the DS1019+ prior to launch, and after adding it to our growing shelf of network storage devices, we spent some time seeing how this new model compares to its predecessors and counterparts.
Specifications & Design
The design of the DS1019+ is virtually identical to that of the DS918+, with the same style of drive bays, same case material and color, same basic layout of ports and status lights, and even an almost identical list of technical specs. The biggest difference between the two by far is simply the addition of a fifth drive bay on the DS1019+. So, if you liked the look and feel of the DS918+, you should feel the same way about the DS1019+.
Following the design trends of other Synology NAS devices in recent years, the DS1019+ is compact considering its capabilities. It measures in at 166mm x 230mm x 223mm (about 6.5 x 9.0 x 8.8 inches) and weighs about 5.6 pounds without drives. Included in the box is the power adapter with region-appropriate power cord, two five-foot Cat5e Ethernet cables, an accessory kit with two keys for the drive bay locks, 20 screws for mounting 2.5-inch drives in the 3.5-inch drive bays, and a quick installation guide.
Like almost all Synology NAS devices, the DS1019+ ships without drives, so you'll need to add your own mechanical or solid state drives in order to use the device. If want to configure the NAS with a traditional RAID, you'll want to populate the drive bays with drives of the same capacity and ideally from the same vendor. If you need to mix-and-match drive vendors, at least aim to use drives with identical performance specifications. Similar in concept to Drobo, Synology also offers a "Hybrid RAID" (SHR) option that allows users to combine drives of different sizes or later expand the array by replacing smaller drives with larger ones. Depending on drive types and size mismatches, however, there is a performance penalty to going this route compared to a similar RAID configuration utilizing identical disks.
As alluded to, the 1019+ is powered by the same CPU found in the DS918+: the Intel Celeron J3455, a quad-core 10-watt Apollo Lake part. With base and boost clocks of 1.5GHz and 2.3GHz, respectively, the J3455 is more than powerful enough to accommodate the transfer and management of data on the NAS, and it also supports hardware video transcoding, which is a huge advantage for services like Plex.
datAshur Pro Encrypted USB Flash Drive
Editor's Note: This review was originally published at TekRevue and is republished here with permission.
When it comes to protecting your data, there are options such as local encryption or using an online storage service that offers encryption in the cloud. But one major weakness that affects both businesses and consumers is the "sneakernet:" moving data physically between computers or users via mediums such as flash drives or external hard drives. For example, delivering the latest W-2 forms to the HR department or taking your yearly tax information to your accountant's office.
While it's possible to move data in this manner securely by using software-based encryption, the simple reality is that many users and employees don't take data security into consideration, or they just forget. The thought is "the data is in my hands, it's safe." But, of course, when that flash drive or hard drive gets left behind at the coffee shop, or the bag containing them gets swiped at the airport, this false notion crumbles immediately.
UK-based iStorage is one company that recognizes this issue, and the company has built its entire product line around hardware-based encryption for external storage devices. These are devices that automatically encrypt the data stored on them, completely preventing access to the data unless the correct PIN is physically entered on the device. As long as employees or family members use a device like this for their external data storage, they never need to "think" about encryption since the data is automatically secured as soon as it's unplugged from the computer.
While iStorage offers a range of devices including external hard drives, we spent some time with one of the company's flash drives. The datAshur Pro is a USB 3.0 drive that is available in capacities ranging from 4 to 64GB. We're reviewing the 32GB model, which has a current street price in the US of about $125.
OWC USB-C Dual-Bay Drive Dock Review
Editor's Note: This review was originally published at TekRevue and is republished here with permission.
Industry trends, such as increasingly compact PCs and Macs that are incapable of being upgraded, and faster connections to network-attached storage devices, have made the traditional “bare” 3.5-inch or 2.5-inch drive far less common in typical homes and businesses. But for those who still use bare drives for backup, archiving, data transfer, or troubleshooting, the importance of a solid drive dock is crucial.
These devices, which generally accept the SATA connections of bare mechanical and solid state drives and allow access to the drives via a more handy external I/O protocol, have been around for years, with certain devices offering access via USB 2.0, FireWire, eSATA, USB 3.0, and even Thunderbolt. But the ones you find today in typical online marketplaces often suffer from reliability issues or limited functionality, such as the inability to boot from a connected drive.
One company that has long offered a range of external drive docks is OWC, and although it has been several years since I used an OWC drive dock, I recall that the company’s products suffered none of the aforementioned drawbacks. And so when my most recent USB 3.0-based drive dock from StarTech recently died, I was interested to see that OWC had continued to update its drive dock product lineup, adding a USB 3.1 Type-C option last year.
I spent the last few weeks evaluating a review loan of this latest OWC Drive Dock, and found it to be a well-built, high-performance device that is a significant upgrade over my previous drive dock. Read on for my more detailed impressions of the device’s design and performance.
Samsung today is launching a new member of its consumer-targeted family of NVMe SSDs, the Samsung 970 EVO Plus. Thanks to the upgrade from 64-layer to 96-layer V-NAND, this new drive promises significantly better write performance, a slight bump to overall responsiveness, and improved efficiency all in the same single-sided package at capacities up to 2TB.
This new drive, a mid-cycle refresh that keeps the well-regarded 970-series on the market, looks impressive on paper. But do those soaring advertised IOPS and insane write speeds hold up in reality? Check out our initial review of the Samsung 970 EVO Plus.
WD Black SN750 NVMe SSD Review
Western Digital today is launching the latest version of its Black-series NVMe SSDs. Like its predecessor, the WD Black SN750 is targeted at gamers, introducing a new "Gaming Mode" that tunes the drive to favor performance over power efficiency.
The drive will be available in two variants — one including a heatsink and one without — in capacities up to 2TB. Western Digital worked with cooling experts EK to design the heatsink.
We had a brief time to review the 1TB non-heatsink model and have some initial performance results to share.
DeepSpar is the big name in data recovery, making all sorts of data recovery hardware used by many of the big data recovery warehouses. They've recently ventured into getting their recovery hardware into the hands of smaller operations. A couple of years back, they launched the RapidSpar (reviewed here), which offered a nice little package that enabled smaller shops and small businesses to bring a fair chunk of their data recovery operations in-house. While these tools could also be used for data forensics, that's a 'different crowd' really. Forensic operations want to just be able to plug a drive into a write blocker and hit GO on their imaging software. Write blockers are hardware devices that prevent any write requests from ever reaching the storage device, which lets the forensic shop later prove to the court (if needed) that the evidence (source drive) has not been tampered with. Historically, write-blocking hardware has not implemented data recovery functionality, meaning that a drive that times out with read errors would do the same thing when connected via a write blocker. This equates to added headaches for the data forensics guys that are just trying to get their drives imaged and get on with their cases (digging through the image looking for evidence of system compromise, illegal activity, etc). A few hard drive errors throwing a big wrench into the drive imaging process should be a solvable problem, and DeepSpar has stepped in to take a crack at just that:
Enter the Guardonix. This simple little box sits inline, between the capture PC and the USB device (flash drive, HDD in a USB dock, etc). It naturally performs the typical write blocking functionality expected from the device, but it throws in a round of data recovery functionality as well. Let's look at the simple software interface to help explain further:
Connecting the device to the system the first time mounts a small volume containing software to get up and running. The app handles firmware and driver updates within its own interface, making things simple. DeepSpar recommends using the Asmedia USB3 controller on your system board for best possible compatibility, with the vendor driver installed (don't use the Microsoft InBox driver - download the USB 3 controller driver from your motherboard/laptop vendor). The same Asmedia controller recommendation applies to the use of a USB 3 dock connected to the Guardonix - Asmedia controllers best support the necessary device resets necessary for the data recovery tricks it is capable of.
Once up and running, there is a series of configuration and data recovery options available. Logging options are extensive and necessary for inclusion in forensic reports. The 'PRO' settings (added cost) enable greater control of read timeouts, allow file system mounting, and enable some cool tricks like the ability to fake write attempts instead of replying with 'write denied' errors.
Above is a typical setup showing the whole operation in action. I'm using a simple data recovery app instead of ($$$) dedicated forensic software, but the principles are the same.
Here's a look at the Guardonix output while pushing through a drive containing read errors. Note that once past the errors, we see full speed of the source drive (a 2.5" SATA HDD in this case). The configurable timeouts are 1.25 (short), 4 (medium), and 10 (long) seconds. If the drive fails to come back after each reset attempt, the Guardonix is able to repower the drive a few seconds later. The error handling is definitely robust. I was able to go as far as to remove and reinsert the drive from the dock during imaging, and it just picked right back up from where it left off. Here's the Guardonix demo video:
Pricing and conclusion:
The base Guardonix goes for $320 at the time of this writing, with the PRO add-on features tacking on another $470. This may seem steep, but compared to other write-blocking hardware I've seen in the past, it's about average, with the PRO add-on tacking on some data recovery options capabilities not normally possible with simpler write blockers. So long as you are ok with only USB and docked SATA connectivity, that $470 is actually a good deal compared to the pricier RapidSpar (but not nearly as feature-packed).
*edit* Prices adjusted slightly after publishing. Article updated to reflect current prices.
Overall this is good stuff from DeepSpar. I'm glad to see them venturing into the forensics space, as that arena could stand to benefit from less frustration during their imaging operations. I know it would have saved me a bunch of time and headaches back when I was dealing with data forensics!
Once we saw Intel launch QLC flash installed in their recent 660p M.2 part, I had a feeling that Micron would not be far behind, and that feeling has been confirmed with the launch of the Crucial P1 M.2 SSDs:
Both the 500GB and 1TB models are single sided. The 2TB (not yet released) will likely have packages installed at the rear.
No surprises with the packaging. Does the job just fine.
Specs are also reasonably standard for an NVMe SSD at this point, though we do see a bit more of a falloff at the lower capacities here. This is partially due to the use of QLC flash, even though these specs are likely assuming full use of the available SLC cache. Since QLC allows for higher capacity per die, that translates to fewer dies for a given SSD total capacity, which lowers overall performance even at SLC speeds. This is a common trait/tradeoff for the use of higher capacity dies.
For years we have been repeatedly teased by Samsung. Launch after successful launch in the consumer SSD space, topping performance charts nearly every time, but what about enterprise? Oh sure, there were plenty of launches on that side, with the company showing off higher and higher capacity 2.5" enterprise SSDs year after year, but nobody could ever get their hands on one, and even the higher tier reviewers could not confirm Samsung's performance claims. While other SSD makers would privately show me performance comparison data showing some Samsung enterprise part walking all over their own enterprise parts, there was not much concern in their voices since only a small group of companies had the luxury of being on Samsung's short list of clients that could purchase these products. Announcements of potentially groundbreaking products like the Z-SSD were soured by press folk growing jaded by unobtanium products that would likely never be seen by the public.
Samsung has recently taken some rather significant steps to change that tune. They held a small press event in September, where we were assured that enterprise SSD models were coming to 'the channel' (marketing speak for being available on the retail market). I was thrilled, as were some of the Samsung execs who had apparently been pushing for such a move for some time.
As a next step towards demonstrating that Samsung is dedicated to their plan, I was recently approached to test a round of their upcoming products. I accepted without hesitation, have been testing for the past week, and am happy to now bring you detailed results obtained from testing eight different SSDs across four enterprise SSD models. Testing initially began with three of the models, but then I was made aware that the Z-SSD was also available for testing, and given the potential significance of that product and its placement as a competitor to 3D XPoint products like Intel's Optane, I thought it important to include that testing as well, making this into one heck of a Samsung Enterprise SSD roundup!
One large note before we continue - this is an enterprise SSD review. Don't expect to see game launches, SYSmark runs, or boot times here. The density of the data produced by my enterprise suite precludes most easy side-by-side comparisons, so I will instead be presenting the standard full-span random and sequential results for fully conditioned drives, marking the rated specs on the charts as we go along. High-Resolution QoS will also be used throughout, as Quality of Service is one of the most important factors to consider when choosing SSDs for enterprise usage. In short, the SSDs will be tested against their own specifications, with the exception of some necessary comparisons between the Samsung Z-SSD and the Intel Optane SSD DC P4800X which I will squeeze in towards the end of this very lengthy and data-dense review.
Samsung has opted to name this new product 'QVO'. The Q presumably stems from the use QLC flash, which can store four bits per cell.
While QLC writes are far slower than what we are used to seeing from a modern SSD, SLC caching is the answer to bridging that performance gap. The 860 QVO employs Samsung's Intelligent TurboWrite, which has a minimum 6GB static cache plus a dynamic cache of up to 72GB. This dynamic cache varies based on available QLC area which can be reconfigured to operate in SLC mode. Do note the 'After TubroWrite' speeds of 80 and 160 MB/s - that's the raw QLC speeds that you will see if the cache has been exhausted during an extended write period.
The rest of the specs are about what we expect from a SATA SSD, but I do have a concern with those QD1 4KB random read ratings of only 7,500 IOPS. This is on the low side especially for Samsung, who typically dominate in low QD random read performance.
It has been 9 years since I reviewed the DroboPro. For its time, that product was a beast of a device, with the closest to a 'set it and forget it' RAID implementation I had ever seen. It was also robust enough to shrug off any combination of power loss and pulling (failing) disks that I could throw at it. The ease of use/durability combination was a good formula for Drobo that has now lasted over a decade. The main hurdles over the years have been more on the performance side of things. The original DroboPro was indeed quicker than previous Drobos and other competing models, but competition quickly surpassed them in performance. Later Drobo models brought decent performance and capabilities for competitive prices (like the Drobo 5C), but we haven't had a worthy successor to the original DroboPro. They came close in the form of the B810 series, but those were still limited by Gigabit links. We needed the 8-bay form factor to have a larger pipe - and now we do:
MyDigitalDiscount doesn't seem to have been satisfied with their performance BPX line or their value SBX line, and have now launched a BPX Pro, which looks to carry the budget pricing of the SBX while offering performance *higher* than the original BPX. How much faster is the BPX Pro than the BPX? That's what this review sets to find out, so let's get to it.
With the label peeled back, we find the Phison E12, coupled to Toshiba BiCS3 TLC NAND. PCBs are single sided up to 480GB. 960GB (and 2TB - not in this review) employ a different PCB with additional DRAM and two more flash packages on the flip side.
Intel just sent over a note that they have officially launched the 1.5TB capacity for the Optane SSD 905P (for both HHHL and U.2 form factors). We'd been expecting this for a while now, considering we had tested a full system incorporating the U.2 version of this very capacity two months ago. That system has now been given away, but I borrowed the SSD while Ken was tearing down the system for his review. With the product now officially launched, I thought it appropriate to take a quick look at this higher capacity part, both inside and out.
7 packages on one side of a single PCB. This is unexpected for a U.2 SSD since there is usually some sort of folded-over PCB sandwich, which doubles the available area for packages. Odd finding a single PCB here given the large 1.5TB capacity combined with XPoint dies only holding 16GB each.
7 more packages along with the now standard XPoint controller. No DRAM necessary because, well, XPoint can easily pull double duty in that respect. Alright, so we have 1.5TB spread across only 14 packages. Throughout every Intel SSD we have ever laid our hands on for review, we've never seen *any* product (NAND or 3D XPoint) stack more than 4 dies per package. Had Intel stuck with that limit here, we would only have a maximum raw media capacity of 896GB. This is a 1.5TB SSD, so the only possible answer here is that we apparently have the first 8-die-per-package SSD to come out of Intel.
Today we take a quick look at an update to Toshiba's line of OEM SSDs. The first product to employ 96-layer 3D TLC NAND, the XG6:
I'm going to keep this one brief since this is to be an OEM-only product that is not expected to be available in retail channels. It's good to have some results out there since it will appear in many laptops and may result in the creation of a parallel retail product at some point in the future.
XG6 at the top. XG5 at the bottom. Pretty much identical with the labels removed, the major exception being the flash memory, which is now 96-layer BiCS.
Synology DS1618+ Review
Synology's 2018 product lineup includes a new network-attached storage device that merges a prosumer price point with an enterprise-level (albeit entry-level enterprise) feature set. The Synology DS1618+ is a six-bay NAS sporting a quad-core Intel processor, up to 32GB of DDR4 memory, and, most importantly, a PCIe expansion slot.
It's that last key feature -- a PCIe 3.0 x8 (x4 link) slot -- that really makes the DS1618+ interesting, as it lets users optionally expand the capabilities of the device with add-ons like NVMe flash adapters or 10GbE ports. Synology has long offered PCIe expansion capabilities in their products, but they've generally been limited to the much costlier enterprise models. With the costs of 10-gigabit networking continuing to fall, however, the DS1618+ is perfectly timed to bring ultra-fast networked storage to home power users.
Synology loaned us a DS1618+ for review, and we've spent the last few weeks testing it with our existing 10GBase-T network.
Introduction, Specifications, and Packaging
Samsung has been in the portable SSD business for a good while now. They released their T1 back in 2015, with the T3 and T5 coming in at a yearly cadence. Keeping with tradition, today we see the release of a new model on a new interface - Samsung's new Portable SSD X5:
(970 EVO included for scale)
While the 'T' branded predecessors were USB 3.0 and 3.1 (Gen1 - limited to 5Gbps), Samsung has now jumped onto the Thunderbolt 3 bandwagon, taking a firmware-tweaked (for encryption) 970 EVO and placing it behind an Intel Alpine Ridge DSL6340 Thunderbolt 3 controller.
Specs of note are the nearly 3GB/s sequential read speed. 2.3GB/s writes are nothing to sneeze at, either. No random performance noted here, but we will fix that with our test suite later on in the article.
Nice packaging and presentation.
Read on for our review of the Samsung Portable SSD X5!
We aim to find out
Back in April of this year we first took a look at the storage performance of the then-new X470 chipset for the 2nd generation of Ryzen processors. Allyn dove into NVMe RAID performance and also a new offering called StoreMI. Based on a software tiered storage solution from Enmotus, StoreMI was a way for AMD to offer storage features and capabilities matching or exceeding that of Intel’s mainstream consumer platforms without the need for extensive in-house development.
Allyn described the technology well:
AMD has also launched their answer to Intel RST caching. StoreMI is actually a more flexible solution that offers some unique advantages over Intel. Instead of copying a section of HDD data to the SSD cache, StoreMI combines the total available storage space of both the HDD and SSD, and is able to seamlessly shuffle the more active data blocks to the SSD. StoreMI also offers more cache capacity than Intel - up to
512 256GB SSD caches are possible (60GB limit on Intel). Lastly, the user can opt to donate 2GB of RAM as an additional caching layer.
We recently did some testing with StoreMI after the release of the 2nd generation Threadripper processor evaluation was out of the way, just to get a feel for the current state of the software offering and whether or not it could really close the gap with the Optane caching solutions that Intel was putting forward for enthusiasts.
Introduction, Specifications, and Packaging
Flash Memory Summit 2018 is on, and it's rapidly looking like the theme of the year is 'QLC'. QLC stands for Quad Level Cell, which is a bit of a misnomer since there are actually 16 voltage levels of a QLC cell - the 'quad' actually relating to the four bits of data that can be stored at any specific location.
Doubling the number of voltage states allows you to store 33% more data in a given number of flash cells, but comes at a cost. The tighter voltage tolerances required and higher sensitivity to cell leakage mean that endurance ratings cannot be as high as TLC or MLC, and programming (writing) requires greater voltage precision, meaning slower writes. Reads may also see a slight penalty since it is more difficult to discriminate more finely grained voltage thresholds. SSD makers have been trying to overcome these hurdles for years, and it seems that Intel is now the first to crack the code, launching their first mainstream QLC SSD:
Specifications are not earth shattering but respectable for a budget-minded NVMe SSD. 1.8GB/s sequentials and 250,000 IOPS fall well within NVMe territory. The write figures may be higher than expected given this article intro, but Intel has a few tricks up their sleeves here that help them pull this off:
While not specifically called out in the specs, Intel has implemented a large dynamic write cache to help overcome slower QLC media write speeds. The idea here is that in the vast majority of typical usage scenarios, the user should never see QLC speeds and will only ever be writing to SLC. The dynamic cache is created by simply operating sections of the QLC media in SLC mode (1TB of QLC = 256GB of SLC). Intel could have gone higher here, but doing so would more negatively impact endurance since erasing blocks of cells wears the flash similarly regardless of the mode it is currently operating in.
Simple packaging. Nothing to write home about.
Read on for our full review of the Intel SSD 660p 1TB QLC SSD!
Toshiba RC100 240GB/480GB SSD Review
Budget SSDs are a tough trick to pull off. You have components, a PCB, and ultimately assembly - all things which costs money. Savings can be had when major components (flash) are sourced from within the same company, but there are several companies already playing that game. Another way to go is to reduce PCB size, but then you can only fit so much media on the same board as the controller and other necessary parts. Samsung attempted something like this with its PM971, but that part was never retail, meaning the cost savings were only passed to the OEMs implementing that part into their systems. It would be nice if a manufacturer would put a part like this into the hands of regular customers looking to upgrade their system on a budget, and Toshiba is aiming to do just that with their new RC100 line:
Not only did Toshiba stack the flash and controller within the same package, they also put that package on an M.2 2242 PCB. No need for additional length here really, and they could have possibly gotten away with M.2 2230, but that might have required some components on the back side of the PCB. Single-sided PCBs are cheaper to produce vs. a PCB that is 12mm longer, so the design decision makes sense here.
Bear in mind these are budget parts and small ones at that. The specs are decent, but these are not meant to be fire-breathing SSDs. The PCIe 3.0 x2 interface will be limiting things a bit, and these are geared more towards power efficiency with a typical active power draw of only 3.2 Watts. While we were not sampled the 120GB part, it does appear to maintain decent specified performance despite the lower capacity, which is a testament to the performance of Toshiba's 64-layer 3D BiCS TLC flash.
Not much to talk about here. Simple, no frills, SSD packaging. Just enough to ensure the product arrives undamaged. Mission accomplished.
A little Optane for your HDD
Intel's Optane Memory caching solution, launched in April of 2017, was a straightforward feature. On supported hardware platforms, consisting of 7th and 8th generation Core processor-based computers, users could add a 16 or 32gb Optane M.2 module to their PC and enable acceleration for their slower boot device (generally a hard drive). Beyond that, there weren't any additional options; you could only enable and disable the caching solution.
However, users who were looking for more flexibility were out of luck. If you already had a fast boot device, such as an NVMe SSD, you had no use for these Optane Memory modules, even if you a slow hard drive in their system for mass storage uses that you wanted to speed up.
At GDC this year, Intel alongside the announcement of 64GB Optane Memory modules, announced that they are bringing support for secondary drive acceleration to the Optane Memory application.
Now that we've gotten our hands on this new 64GB module and the appropriate software, it's time to put it through its paces and see if it was worth the wait.
The full test setup is as follows:
|Test System Setup|
Intel Core i7-8700K
|Motherboard||Gigabyte H370 Aorus Gaming 3|
16GB Crucial DDR4-2666 (running at DDR4-2666)
Intel SSD Optane 800P
Intel Optane Memory 64GB and 1TB Western Digital Black
|Graphics Card||NVIDIA GeForce GTX 1080Ti 11GB|
|Graphics Drivers||NVIDIA 397.93|
|Power Supply||Corsair RM1000x|
|Operating System||Windows 10 Pro x64 RS4|
In coming up with test scenarios to properly evaluate drive caching on a secondary, mass storage device, we had a few criteria. First, we were looking for scenarios that require lots of storage, meaning that they wouldn't fit on a smaller SSD. In addition to requiring a lot of storage, the applications must also rely on fast storage.
Is it a usable feature?
EDIT: We've received some clarification from Intel on this feature:
"The feature is actually apart of RST. While this is a CPU-attached storage feature, it is not VROC. VROC is a CPU-attached PCIe Storage component of the enterprise version of the product, Intel RSTe. VROC requires the new HW feature Intel Volume Management Device (Intel VMD) which is not available on the Z370 Chipset.
The Intel Rapid Storage Technology for CPU-attached Intel PCIe Storage feature is supported with select Intel chipsets and requires system manufacturer integration. Please contact the system manufacturer for a list of their supported platforms."
While this doesn't change how the feature works, or our testing, we wanted to clarify this point and have removed all references to VROC on Z370 in this review.
While updating our CPU testbeds for some upcoming testing, we came across an odd listing on the UEFI updates page for our ASUS ROG STRIX Z370-E motherboard.
From the notes, it appeared that the release from late April of this year enables VROC for the Z370 platform. Taking a look at the rest of ASUS' Z370 lineup, it appears that all of its models received a similar UEFI update mentioning VROC. EDIT: As it turns out, while these patch notes call this feature "VROC", it is officially known as "Intel Rapid Storage Technology for CPU-attached Intel PCIe Storage " and slightly different than VROC on other Intel platforms.
While we are familiar with VROC as a CPU-attached RAID technology for NVMe devices on the Intel X299 and Xeon Scalable platforms, it has never been mentioned as an available option for the enthusiast grade Z-series chipsets. Could this be a preview of a feature that Intel has planned to come for the upcoming Z390 chipset?
Potential advantages of a CPU-attached RAID mode on the Z370 platform mostly revolve around throughput. While the chipset raid mode on the Z370 chipset will support three drives, the total throughput is limited to just under 4GB/s by the DMI 3.0 link between the processor and chipset.
Like we've seen AMD do on their X470 platform, CPU-attached RAID should scale as long as you have CPU-connected PCI-Express lanes available, and not being used by another device like a GPU or network card.
First, some limitations.
Primarily, it's difficult to connect multiple NVMe devices to the CPU rather than the chipset on most Z370 motherboards. Since the platform natively supports NVMe RAID through the Z370 chipset, all of the M.2 slots on our Strix Z370-E are wired to go through the chipset connection rather than directly to the CPU's PCIe lanes.
To combat this, we turned to the ASUS Hyper M.2 X16 card, which utilizes PCIe bifurcation to enable usage of 4 M.2 devices via one PCI-E X16 slot. Luckily, ASUS has built support for bifurcation, and this Hyper M.2 card into the UEFI for the Strix Z370-E.
Aiming to simplify the setup, we are using the integrated UHD 620 graphics of the i7-8700K, and running the Hyper M.2 card in the primary PCIe slot, usually occupied by a discrete GPU.