Subject: Storage | August 22, 2013 - 03:37 PM | Jeremy Hellstrom
Tagged: ssd, endurance, anvils storage utility
The Tech Report is currently testing several SSDs to destruction, or at least trying to. They are using a new tool called Anvil's Storage Utilities which includes a test designed to determine the longevity of the flash storage inside SSDs. They started with factory fresh SSDs, never having a bit written to them before and are currently writing to every address on those drives with a goal of 22TB to be written before they test the speeds of the drives again. Will some fare better than others? Perhaps some will sacrifice capacity to keep their speed up? Stay tuned, even with SATA 6Gbps it takes a while to write that much data!
"We all know that flash memory has a limited tolerance for write cycling, but what does that mean for SSD endurance? We're testing six SSDs to failure to find out."
Here are some more Storage reviews from around the web:
- 256 GB OCZ Vector @ TechARP
- Intel SSD 530 240GB @ Hardware.info
- Samsung unveils its first 3D V-NAND SSDs for the enterprise @ The Inquirer
- Kingston SSDNow mS200 / RunCore Pro V 120GB mSATA SSDs review: ideal upgrade for laptops @ Hardware.info
- HGST Travelstar 5K1500 2.5-inch Mobile Hard Drive Review @ Madshrimps
- Western Digital Blue Slim 1TB hard Drive Review @ Hardware Canucks
- Patriot Gauntlet 320 Wireless External Hard Drive Review @ TechwareLabs
- HGST Touro Mobile Pro 500GB USB 3.0 External Hard Drive Review @ Legit Reviews
- Seagate Wireless Plus External Storage @ Bjorn3D
- ADATA DashDrive Durable HD710 External Hard Drive @ Benchmark Reviews
- SanDisk Extreme UHS-I microSDXC Card SDSDQX @ Benchmark Reviews
Subject: General Tech | August 22, 2013 - 02:54 PM | Ken Addison
Tagged: XSPC, video, V-NAND, ssd, Samsung, podcast, MXC, Intel, gtz 780, gtx 680, DirectCU II, asus, 670 mini
PC Perspective Podcast #265 - 08/22/2013
Join us this week as we discuss the XSPC GTX 680 Waterblock, ASUS's DirectCU II Refresh, V-NAND SSDs and more!
The URL for the podcast is: http://pcper.com/podcast - Share with your friends!
- iTunes - Subscribe to the podcast directly through the Store
- RSS - Subscribe through your regular RSS reader
- MP3 - Direct download link to the MP3 file
Hosts: Ryan Shrout, Jeremy Hellstrom, Josh Walrath, and Allyn Malventano
Program length: 1:17:41
Week in Review:
News items of interest:
Hardware/Software Picks of the Week:
1-888-38-PCPER or firstname.lastname@example.org
*Due to upload issues on YouTube's side today, the video may take substantially longer than usual to be available
Subject: Storage | August 22, 2013 - 01:11 AM | Tim Verry
Tagged: corsair, force ls, ssd, phison, toshiba mlc
Corsair has launched a new line of budget solid state drives (SSDs) under the Force LS branding. The new SSDs come in up to 240GB capacities, and despite being budget drives, still manage to max out the SATA III 6Gbps interface.
The new Force LS SSDs use 19nm Toshiba MLC NAND flash and a Phison SSD controller. Traditionally, Corsair has used LSI SandForce controllers in its Force and Force GT solid state drives. The Force LS line includes 60GB, 120GB, and 240GB SSDs. The drives are 7mm thick 2.5” form factor drives.
As far as performance, the drives support sequential write speeds of 535 MB/s and sequential read speeds of 555 MB/s. Information on IOPS have not been released, but expect it to be lower than the existing Force drives due to their budget nature.
There is no word on specific availability date(s), but the new Force LS drives will be priced at $70 for the 60GB, $110 for the 120GB, and $200 for the 240GB. At the top end, the drives are approximately 83 cents per Gigabyte ($0.83/GB). All Force LS drives come with three year warranties.
Subject: Storage | August 12, 2013 - 05:37 PM | Jeremy Hellstrom
Tagged: ssd, partition, MiniTool Partition Wizard Home Edition, 4k
SSDs and modern OSes no longer use the old 512 byte LBA alignment, or at least they don't need to and in the case of SSDs offer larger disk size and faster performance. However many people are not aware of 4k alignment nor how to check if their SSD is aligned nor what to do even if they do know it is not aligned. Hardware.Info put together a short article on the steps to verify if your SSD is aligned as well as covering a free partitioning tool called MiniTool Partition Wizard Home Edition which will help you align your SSD as well as other tasks common to partitioning software. As with any major changes being made at this low a level, do realize that this could cause data loss, but aligning those sectors is a great IDEMA.
"When you copy the contents of a hard disk from a PC or laptop to an SSD you have to make sure that the placement of the partitions corresponds to the underlying hardware structure. The same is true for the latest generation of hard disks. Today we'll discuss what this so-called '4k alignment' really means and what you can do in order to prevent a decrease in performance."
Here are some more Storage reviews from around the web:
- ULLtraDIMM: combining SSD and DRAM for the enterprise @ Hardware.info
- Seagate 600 SSD 240GB (ST240HM000) @ NikKTech
- Plextor M5 Pro 256 GB SSD @ techPowerUp
- SanDisk Extreme 2 240GB SSD Review @ Hardware Canucks
- SanDisk Extreme II Solid State Drive SDSSDXP @ Legion Hardware
- Seagate Laptop Thin SSHD 500GB @ NikKTech
- ASUS RAIDR Express 240GB PCI-Express SSD @ Hardware.info
- Silicon Power Blaze B20 USB 3.0 Flash Drive Review @ Madshrimps
- Corsair Voyager Air 500GB @ Legion Hardware
- WD My Passport Ultra 1TB Portable Hard Drive Review @ Techgage
- Patriot Tab 32GB USB 3.0 Flash Drive @ eTeknix
- Kingston DT Ultimate 3.0 G3 32GB USB 3.0 Flash Drive 2 Funky Kit
- Seagate Business Storage 2-bay 6TB @ Hardware.info
- Synology DS713+ @ techPowerUp
- Seagate NAS HDD 4TB Review @ Techgage
- QNAP TS-421 and TS-420 @ Legion Hardware
- Teratrend (SilverStone) TS231U 2 Bay USB3.0 RAID Enclosure @ eTeknix
Subject: Storage | August 12, 2013 - 09:00 AM | Allyn Malventano
Tagged: ssd, silicon motion, sata, controller
You may very well have never heard of Silicon Motion (SMI), a major priducer of flash memory controllers, even if you've followed the SSD industry for a while. This is primarily because the vast majority of their products have been tailored for the devices that folks tend to not crack open during review, namely USB memory sticks, eMMC devices, and SD / CF cards:
Creating controllers in those arenas will tend to force a company to do a few things very well:
- Handle a very limited number of flash channels with the greatest speed possible, due to packaging requirements for very small devices.
- Operate at the lowest power draw possible as to meet the current draw limits of the host interface.
This has resulted in SMI developing a 6Gb/sec SSD controller, dubbed the SM2246EN, using the above techniques:
The block diagram shows what appears to be a fairly standard 4-channel configuration, though there are fewer steps in the pipeline as compared to SandForce and other controllers, which should help decrease latency and improve efficiency. There is also no compression engine, which means power consumption should be further reduced.
Read on for further details on specs and power consumption, followed by the full press blast.
Subject: Storage | July 28, 2013 - 11:13 AM | Tim Verry
Tagged: ssd, raidr express, raidr, pci-e ssd, ASUS ROG, asus
ASUS has officially launched its PCI-E based ROG RAIDR Express SSD which was first shown off at CES 2013. The company posted details and high resolution photos on its Republic of Gamers blog on Friday.
The new PCI-E-based solid state drive measures 157 x 120 x 20mm and contains 240GB of NAND flash encased in a sleek metal Replublic Of Gamers themed exterior. Specifically, the RAIDR Express uses 19nm Toshiba synchronous MLC NAND flash and two LSI SandForce 2281 SSD controllers. As such, the drive is actually two SSDs that are placed in a RAID 0 configuration for the best performance. ASUS rates the drive at 830 MB/s sequential reads and 810 MB/s sequential writes. The PCI-E SSD is further capable of up to 100,000 4K random IOPS.
ASUS has also included what it is calling a "DuoMode" BIOS switch that allows the drive to be used with either legacy or modern UEFI BIOSes. When the switch is in the EUFI position, PCs with the modern UEFI-equipped motherboards can boot up faster.
Beyond the RAIDR Express SSD itself, ASUS includes the following bundled software packages:
- RAMDisk software
- HybriDisk caching software
- SSD TweakIT utility
ASUS is including RAMDisk software that is able to use as much as 80% of system RAM as a virtual drive that can be used to reduce wear on the SSD by using the RAM drive instead of the SSD for writing temporary files and the like. The above mentioned HybriDisk software allows the RAIDR Express SSD to be used as a cache drive for mechanical hard drives up to 4TB in capacity. Users can use the TweakIT utility to manage and optimize the SSD, and the CrystalDiskMark benchmark is being included to allow gamers to run benchmarks on the RAIDR Express to get an idea of its performance.
Oddly enough, ASUS has yet to release specific pricing or availability. More information along with the full press release can be found on the Republic of Gamers blog, however.
With that said, some sites are reporting that the RAIDR Express will be sold for around 440 Euros, which works out to about $600 USD or $2.5 per Gigabyte. Update: Commentor Roberto has pointed out that the RAIDR Express 240GB is available over in Japan for around 39,980 Yen, or ~$409 USD which is a much more reasonable price. US availability and pricing are still just estimates at this point, however. A bit on the expensive side (if the price is true) for sure, but it is nice to see another player in the PCI-E SSD space and it looks to be a speedy drive aimed at ROG fans and enthusiasts.
Also read: Details on a 120GB ASUS ROG RAIDR Express SSD @ PC Perspective.
Subject: Storage | July 26, 2013 - 06:08 PM | Jeremy Hellstrom
Tagged: TurboWrite, tlc, ssd, slc, Samsung, 840 evo, MEX controller
Along with Al's review of the new EVO line you can get a second opinion from The Tech Report about the performance of the new SSD with a fast cache. The majority of the storage is 19nm TLC NAND but there is an SLC cache sitting between the controller and that long term TLC storage to help with the overall responsiveness of the drive, aka TurboWrite. In the 120 and 250GB models that cache is 3GB while in the larger models you get a 6GB cache. In their real world testing the new EVO drive is incredible at large file copying though Sandforce drives can beat it in small file copy speeds, likely thanks to the compressed write trickery that controller family is so good at. Check out the review here and keep your fingers crossed that MSRP is the acual price these drives sell at.
"Samsung's entry-level 840 EVO SSD combines affordable TLC NAND with a server-style SLC cache. We explain the drive's unique buffering tech and explore how it affects performance."
Here are some more Storage reviews from around the web:
- Samsung 840 EVO SSD @ The SSD Review
- Samsung SSD 840 EVO Review: 120GB, 250GB, 500GB, 750GB & 1TB Models Tested @ AnandTech
- Samsung 840 EVO 250GB, 750GB SSD Review @ Custom PC Review
- Samsung 840 Evo SSD @ Hardware.info
- Samsung unveils 840 EVO solid-state drive family @ The Tech Report
- 240GB OCZ Vertex 450 Solid State Drive @ Benchmark Reviews
- Plextor M5M 128GB mSATA SSD Review @ Legit Reviews
- OCZ Vertex 3.20 240GB SSD @ eTeknix
- OCZ Vector 512GB SSD @ Kitguru
- RunCore Pro IV 1.8 Inch ZIF SSD @ LanOC Reviews
- Silicon-Power Velox V55 240GB @ Legion Hardware
- Seagate 600 Pro SSD 400GB @ Bjorn3D
- Securely Erasing Your SSD with Linux: A How-To @ Techgage
- Seagate Central 3TB review: User-friendly? @ Hardware.info
- Silicon Power Blaze B20 32GB USB 3.0 Flash Drive @ NikKTech
- USB 3.0 Flash Drive Roundup July 2013 @ Legion Hardware
- Icy Dock FlexCage 2 Bay and 3 Bay Hard Drive Enclosure Review @ HiTech Legion
- Zalman ZM-VE400 USB 3.0 HDD/SSD Enclosure @ Funky Kit
- QNAP TS-421 & QTS 4.0 @ techPowerUp
- Thecus N2520 review: first NAS with Intel Atom CE5315 @ Hardware.info
Introduction and Specifications
Last week, Samsung flew a select group of press out to Seoul, Korea. The event was the 2013 Samsung Global SSD Summit. Here we saw the launch of a new consumer SSD, the 840 EVO:
This new SSD aims to replace the older 840 (non-Pro) model with one that is considerably more competitive. Let's just right into the specs:
Subject: Storage | July 18, 2013 - 01:39 AM | Allyn Malventano
Tagged: ssd, Samsung, pricing, EVO, 840 evo
Subject: Storage | July 18, 2013 - 01:12 AM | Allyn Malventano
Tagged: tlc, ssd, slc, sata, Samsung, cache, 840 evo
Samsung's release of the 840 EVO earlier today likely prompted some questions, such as what type of flash does it employ and how does it achieve such high write speeds. Here is the short answer, with many slides in-between, starting off with the main differences between the 840 and the 840 EVO:
So, slightly increased specs to help boost drive performance, and an important tidbit in that the new SSD does in fact keep TLC flash. Now a closer look at the increased write specs:
Ok, the speeds are much quicker, even though the flash is still TLC and even on a smaller process. How does it pull off this trick? Tech that Samsung calls TurboWrite.
A segment of the TLC flash is accessed by the controller as if it were SLC flash. This section of flash can be accessed (especially written) much faster. Writes are initially dumped to this area and that data is later moved over to the TLC area. This happenes as it would in a normal write-back cache - either during idle states or once the cache becomes full, which is what would happen during a sustained maximum speed write operation that is larger than the cache capacity. Here is the net effect with the cache in use and also when the cache becomes full:
For most users, even the smallest cache capacity will be sufficient for the vast majority of typical use. Larger caches appear in larger capacities, further improving performance under periods of large write demand. Here's the full spread of cache sizes per capacity point:
So there you have it, Samsung's new TurboWrite technology in a nutshell. More to follow (along with a performance review coming in the next few days). Stay tuned!