Subject: Storage | April 18, 2018 - 05:39 PM | Allyn Malventano
Tagged: wdc, WD, ultrastar, sata, SAS, HelioSeal, hdd, DC HC530, 14tb
Following up on the prior release of a 14TB SMR (shingled magnetic recording) HDD, WD has launched a PMR (parallel magnetic recording)version of the same - the Ultrastar DC HC530:
While the new model does not yet incorporate MAMR, it does couple PMR with TDMR (two-dimensional magnetic recording), which gives a slight boost to platter density, reaching over 900 Gbit/sq. inch. The DC HC530 naming is a departure from the previous HGST Ultrastar line products, which were labeled as 'He8', 'He10', etc. High-level specs are as follows:
- Rotational speed: 7200 RPM
- Data buffer: 512MB
- Seek time (typ): 7.5 ms
- Sequential transfer rate: 267 MB/s (start of disk)
- Available sector sizes: 512e (advanced format emulation), 4Kn (4KB sectors)
- Warranty: 5 years
The SAS models offer double the interface throughput (12Gbps) and some additional custom sector sizes but require higher operating power to drive that faster interface. While track linear density is high enough (at least at the start of the disk) to saturate a SATA 3Gbit link, SATA 6Gbit and SAS 12Gbit links will still see a cache-hit benefit from the drives' relatively large 512MB data buffer.
Introduction, Specifications, and Packaging
A while back, we reviewed the ICY DOCK ToughArmor MB998SP-B and MB993SK-B hot-swap SATA docks. These were well built, high-density docks meant for 7mm height SSDs and HDDs. The former part was unique in that it let you squeeze eight drives in a single 5.25” drive bay, all while enabling you to hot swap all of them at the front panel. The ToughArmor line has been pushing into higher and higher bay counts, so it only made sense that we eventually saw something higher than an 8-bay unit:
Enter the ToughArmor MB516SP-B. While it looks like two MB998SP-B’s stacked on top of each other, there is more than meets the eye in order to pull this trick off properly. We'll focus on that further into the review, but for now, let us get through the specs.
Subject: Storage | December 6, 2016 - 08:58 AM | Allyn Malventano
Tagged: western digital, wdc, WD, ultrastar, ssd, SS200, SN200, SAS, NVMe, hgst, helium, He8, He6, He12, He10, He, hdd, 12TB, 10TB
First up is a second generation of HGST-branded SSD products - the Ultrastar SN200. These enterprise SSDs boast impressive specs, pushing random reads beyond 1 million IOPS, coming in 8TB capacity, and if you opt for the HHHL PCIe 3.0 x8 SN260, 6.2GB/s maximum throughput.
Moving into SAS SSDs, the SS200 uses a 12Gbit link to achieve 1.8 GB/s and 250,000 random read IOPS. Write specs dip to 37,000 random as this is a 1 DWPD endurance class product. These are also available in up to 8TB capacities.
Last but certainly not least are preliminary specs for the He12, which boast particularly impressive low QD random write performance and a notable bump in Watts/TB despite the addition of an eighth platter to achieve the 12TB capacity. Note that this is not an archive class product and is meant for continuous random access.
There is also a 14TB model in the lineup, but that is an archive class model that is essentially the He12 with Shingled Magnetic Recording enabled.
Press blast appears after the break.
Subject: Storage | August 10, 2016 - 02:00 PM | Allyn Malventano
Tagged: 2.5, V-NAND, ssd, Samsung, nand, FMS 2016, FMS, flash, 64-Layer, 32TB, SAS, datacenter
..now this picture has been corrected for extreme parallax and was taken in far from ideal conditions, but you get the point. Samsung's keynote is coming up later today, and I have a hunch this will be a big part of what they present. We did know 64-Layer was coming, as it was mentioned in Samsung's last earnings announcement, but confirmation is nice.
*edit* now that the press conference has taken place, here are a few relevant slides:
With 48-Layer V-NAND announced last year (and still rolling out), it's good to see Samsung pushing hard into higher capacity dies. 64-Layer enables 512Gbits (64GB) per die, and 100MB/s per die maximum throughput means even lower capacity SSDs should offer impressive sequentials.
Samsung 48-Layer V-NAND. Pic courtesy of TechInsights.
We will know more shortly, but for now, dream of even higher capacity SSDs :)
*edit* and this just happened:
*additional edit* - here's a better picture taken after the keynote:
The 32TB model in their 2.5" form factor displaces last years 16TB model. The drive itself is essentially identical, but the flash packages now contain 64-layer dies, doubling the available capacity of the device.
Introduction, Specifications, and Packaging
ICY DOCK has made themselves into a sort of Swiss Army knife of dockable and hot-swappable storage solutions. From multi-bay desktop external devices to internal hot-swap enclosures, these guys have just about every conceivable way to convert storage form factors covered. We’ve looked at some of their other offerings in the past, but this week we will focus on a pair of their ToughArmor series products.
As you can no doubt see here, these two enclosures aim to cram as many 2.5” x 7mm form factor devices into the smallest space possible. They also offer hot swap capability and feature front panel power + activity LEDs. As the name would imply, these are built to be extremely durable, with ICY DOCK proudly running them over with a truck in some of their product photos.
Read on for our full review of the ICY DOCK ToughArmor MB998SP-B and MB993SK-B!
Subject: General Tech | April 5, 2016 - 12:47 PM | Jeremy Hellstrom
Tagged: NVMe, SAS, sata, PCIe SSD, low latency
The Register have put together a nice graphic and table displaying current storage technologies and how they relate to each other. They constructed the graph to demonstrate the major boundaries in storage, between cache/memory, local storage and external storage and how these are going to move thanks to new technology. NVMe-over-fabric will enable companies to utilize external storage at latencies lower than internal storage that still uses SATA or SAS, with only pure PCIe local storage outpacing its potential. X-Point, assuming it lives up to the hype, will blur the line between local storage and memory/cache storage, offering latency previously only seen in system memory or on-die cache.
They also provide a table to give you some rough ideas how this translates between storage media, normalizing it a theoretical task which would take L1 cache 1 second to access, this can make it somewhat easier to comprehend for some than nanoseconds.
"Two technology changes are starting to be applied and both could have massive latency reduction effects at the two main storage boundary points: between memory and storage on the one hand, and between internal and external, networked storage on the other."
Here is some more Tech News from around the web:
- Alphabet's Nest To Deliberately Brick Revolv Hubs @ Slashdot
- Meet Jide's Remix OS: Android on the desktop done right @ The Inquirer
- Google pushes April Android security update to Nexus devices @ The Inquirer
- FreeBSD 10.3 lands @ The Register
- Quinones and graphite make green battery @ Nanotechweb
- A One Year Redux On The Basement Computer Room For Benchmarking 50+ Systems Daily @ Phoronix
- AMD Details Bristol Ridge AM4 Performance @ Hardware Canucks
- Samsung starts mass producing 10nm-class NAND chips @ The Inquirer
Subject: Storage | August 13, 2015 - 08:12 PM | Allyn Malventano
Tagged: FMS 2015, ssd, sata, SAS, pcie, NVMe, novachips, HLNAND, flash
It turns out Samsung wasn’t the only company to have 16TB SSDs at Flash Memory Summit after all:
Now that I’ve got your attention, Novachips is an SSD company that does not make their own flash, but I would argue that they make other peoples flash better. They source flash memory wafers and dies from other companies, but they package it in a unique way that enables very large numbers of flash dies per controller. This is handy for situations where very large capacities per controller are needed (either physically or logically).
Normally there is a limit to the number of dies that can communicate on a common bus (similar limits apply to DRAM, which is why some motherboards are picky with large numbers of DIMMs installed). Novachips gets around this with an innovative flash packaging method:
The 16-die stack in the above picture would normally just connect out the bottom of the package, but in the Novachips parts, those connections are made to a microcontroller die also present within the package. This part acts as an interface back to the main SSD controller, but it does so over a ring bus architecture.
To clarify, those 800 or 1600 MB/sec figures on the above slide are the transfer rates *per ring*, and Novachips controller is 8-channels, meaning the flash side of the controller can handle massive throughputs. Ring busses are not limited by the same fanout requirements seen on parallel addressed devices, which means there is no practical limit to the number of flash packages connected on a single controller channel, making for some outrageous amounts of flash hanging off of a single controller:
That’s a lot of flash on a single card (and yes, the other side was full as well).
The above pic was taken at last years Flash Memory Summit. Novachips has been making steady progress on controller development as well. Here is a prototype controller seen last year running on an FPGA test system:
…and this year that same controller had been migrated to an ASIC:
It’s interesting to see the physical differences between those two parts. Note that both new and old platforms were connected to the same banks of flash. The newer photo showed two complete systems – one on ONFi flash (IMFT Intel / Micron) and the other on Toggle Mode (Toshiba). This was done to demonstrate that Novachips HLNAND hardware is compatible with both types.
Novachips also had NVMe PCIe hardware up and running at the show.
Novachips was also showing some impressive packaging in their SATA devices:
At the right was a 2TB SATA SSD, and at the left was a 4TB unit. Both were in the 7mm form factor. 4TB is the largest capacity SSD I have seen in that form factor to date.
Novachips also makes an 8TB variant, though the added PCB requires 15mm packaging.
All of this means that it is not always necessary to have huge capacity per die to achieve a huge capacity SSD. Imagine very high capacity flash arrays using this technology, connecting a single controller to a bank of Toshiba’s new QLC archival flash or Samsung’s new 256Gbit VNAND. Then imagine a server full of those PCIe devices. Things certainly seem to be getting big in the world of flash memory, that’s for sure.
Even more Flash Memory Summit posts to follow!
Subject: Storage | December 15, 2014 - 01:35 PM | Jeremy Hellstrom
Tagged: SAS, hdd, DIY, LSI, Seagate, icy dock
You may want to build a server consisting of enterprise level SSDs to make sure it provides the best possible speeds to anyone accessing data stored there but the chances of you getting the budget for it are slim going on none. That is why reading the guide on building servers from Modders Inc is worth your time if you find yourself pondering the best way to build a storage server on a budget without making it abysmally slow. You have many choices when you are designing a storage server but if you are not quite sure where to start the list of components and the arguments for their usefulness will get you headed in the right direction. For example the LSI MegaRAID SAS 9271-8i is an impressive RAID controller and with good SAS HDDs you can expect to see very good data throughput and will be more important than the CPU you select. Check out the article right here.
"IT infrastructure and storage has always been part of serious conversation between IT engineers and their bosses. As always IT Engineers want to use the best of the newest technologies while their bosses want to keep every project under a tight budget. It's always an ongoing battle, however both sides always come to some mutual agreement that benefits both sides."
Here are some more Storage reviews from around the web:
- Western Digital Red (WD60EFRX) 6 TB Hard Disk @ TechARP
- QNAP TS-451 Network Attached Storage @ Modders-Inc
- LaCie d2 Thunderbolt Review @ TechwareLabs
- Inateck FE2005 USB 3.0 Tool-Less 2.5″ HDD Enclosure @ eTeknix
- Transcend SSD370 256GB SSD Review @HiTech Legion
- Samsung 850 EVO 500GB SSD Review @ NikKTech
- Samsung 850 EVO 120GB review @ Bjorn3d
- Kingston SSDnow M2 SATA 120GB Solid State Drive @ eTeknix
Subject: Storage | April 8, 2014 - 11:22 PM | Tim Verry
Tagged: Seagate, sata 6Gbs, SAS, Hard Drive, enterprise, 6tb
Seagate's latest enterprise class hard drive offers up to 6TB of space in a 3.5" form factor. The Enterprise Capacity series drive comes in both SATA III 6Gbps and 12Gbps SAS interfaces. Seagate was able to achieve an impressive 1,000 Gb/inch or about 1.25 TB per platter with the drive's five total platters adding up to the 6TB capacity. Perhaps even more impressively, Seagate was able to offer up a 6TB, five platter, 7,200 RPM drive without using helium.
The 6TB Enterprise Capacity hard drive comes with a 128MB DRAM cache. It is rated at 216 MB/s for sequential transfer speeds and an average latency of 4.16 milliseconds. The drive also supports 256-bit AES encryption and an instant secure erase function which overwrites data multiple times. Seagate further claims the drive is rated for 24/7 workloads at 550TB/year with a MTBF of 1.4 million hours. The drive comes with a five year warranty.
The drive will come in several variants depending on the storage interface. LaCie has already committed to using the new drives in its dual bay external storage products. Seagate has not released pricing on the new 6TB drive, but stated that it would price the drive at the same $/GB as last year's 4TB model. Expect the price to be around $650 MSRP before contract and bulk order deals.
It is a neat drive for sure, and I hope that the technology trickles down to the consumer space quickly, as 4TB has been the maximum single drive capacity for far too long!
For now, the drive will be used in the datacenter, production house, and security/surveillance markets (particularly in the datacenter market where rack space is at a premium).
Subject: Storage | December 5, 2013 - 05:08 PM | Jeremy Hellstrom
Tagged: hgst, SAS, ssd, SSD800MM, enterprise ssd
For Enterprise level performance nothing beats SAS as it can sustain transfer speeds of up to 12Gbps if your storage media is fast enough. The partnership of Intel and HGST bring you just such a drive, rated at 700MB/s and 1150MB/s for sequential reads and writes and IOPS of 145K and 70K for random reads and writes respectively. If that isn't enough to make you jealous, The SSD Review also had a chance to test this SSD as part of an eight disk RAID.
"If you have been following The SSD Review in 2013, you are probably familiar with our coverage of 12Gbps SAS. Throughout the year we have covered HBAs, RAID Adapters, Enclosures and SSDs. We have been incredibly busy reviewing new products, but one product in particular has stood out. In all of our 12Gbps SAS reviews we have sung the praises of the HGST SSD800MM. Since the SSD800MM was more of a means to an end when reviewing the LSI SAS 9300-8e, we never really gave it its proper due. With this update, we wanted to put this SSD into perspective after nearly a year’s worth of 12Gbps SAS testing."
Here are some more Storage reviews from around the web:
- Toshiba PX02SS 12Gbps SAS Enterprise (400GB) @ SSD Review
- OCZ Vector 150 240GB @ Legion Hardware
- M.2 NGFF PCIe SSD Adapter @ SSD Review
- ioSwitch Raijin M.2 NGFF PCIe @ SSD Review
- VisionTek Data Fusion PCIe (480GB) @ SSD Review
- Western Digital RED 4TB Hard Drive Review @ Hardware Canucks
- Western Digital Red (WD40EFRX) 4 TB NAS Hard Disk Drive @ TechARP
- Synology DS1513+ Scalable NAS for SMB Review @ Madshrimps
- Western Digital My Cloud 2TB @ eTeknix
- Thecus N2560 NAS Server @ NikKTech
- Western Digital Black² Dual Drive Review – Two drives in one! @ TechwareLabs
- Western Digital Black² 1TB Dual Drive Review @ Hardware Canucks
- WD Black² Dual Drive @ Legion Hardware
- iStarUSA BPN-2535DE-SA SATA 6Gb/s Hot-Swap Cage @ NikKTech
- Lexar JumpDrive P10 32 GB USB 3.0 @ techPowerUp
- Buffalo LinkStation LS421DE Enclosure @ Kitguru
- ADATA HE720 500GB Slim External Hard Drive Review @HiTech Legion
- ADATA DashDrive HV620 External Hard Drive @ Benchmark Reviews