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.
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 8, 2014 - 02:16 PM | Jeremy Hellstrom
Tagged: ultrastar, hgst, enterprise ssd, 20nm
HGST has refreshed their 12Gbit/s SAS series of Ultrastar SSDs with denser 20nm which has upped the read speeds though the writes do suffer somewhat. As they are enterprise drives they have rather impressive lifespans, the 800GB is rated at 25 full drives writes/day for the length of the 5 year warranty. They also offer encryption and erasure tools that are superior to enthusiast drives, along with a much higher price tag. The Register also offers information on the new Ultrastar HDDs and a link to the spec sheets but as of yet we do not have any benchmarks.
"HGST has refreshed its Ultrastar enterprise SSD line, using denser 20nm NAND to replace the previous 25nm flash, doubling capacity, upping read performance but lowering write performance a tad in the process."
Here are some more Storage reviews from around the web:
- Toshiba THNSNJ HG6 256 GB @ techPowerUp
- Crucial MX100 512GB SSD Review @ Hardware Canucks
- Hynix SH920 128GB SSD @ Kitguru
- Kingston SSDNow V310 960GB SSD Review @ Legit Reviews
- Silicon Power Slim S60 240GB SSD Review @ NikKTech
- Kingston HyperX Fury 240GB @ eTeknix
- Samsung 845DC PRO @ The SSD Review
- Leef Supra 3.0 and Ice 3.0 16GB Flash Drive Review @ Legit Reviews
- Netgear ReadyNAS 516 @ Legion Hardware
- Synology DS414slim @ techPowerUp
- Thecus N7710-G NAS Server Review @ NikKTech
- Synology Embedded DataStation EDS14 @ Legion Hardware
- Seagate Enterprise Capacity 3.5 HDD v4 6TB Review @ Neoseeker
Subject: General Tech | April 4, 2012 - 01:07 PM | Jeremy Hellstrom
Tagged: ultrastar, sata 6Gbs, hitachi, 7K4000, 4TB
There aren't any benchmarks yet to see what the new Hitachi Ultrastar 7K4000 4TB HDD but with the similarities to the 3TB model some assumptions can be made. The 7200RPM drive contains five 800GB platters and a 466Gbits/in2 areal density with a 64MB cache and a rated sequential transfer rate of up to 171MB/sec. They also managed to increase the energy efficiency of the drive somewhat, using 24% less watts per GB while offering 33% more storage. The Register reported on both this drive as well as the 4TB Thunderbolt edition which was recently released.
"Hitachi GST has laid a nice Easter egg: a 4TB enterprise disk drive and a first at this capacity level. It's HGST's second 4TB product.
This 3.5-inch drive technology first surfaced in September when Hitachi GST launched its 4TB G-Drive external Thunderbolt product. Now it has updated its Ultrastar line, jumping from the 3TB 7K3000 to this 7K4000 product."
Here is some more Tech News from around the web:
- New Intel flash hardness performs faster for less @ The Register
- Intel outlines open source development projects @ The Register
- Intel to move to DDR4 in early 2014 @ VR-Zone
- Cyberlink PhotoDirector 3 Software Review @ Hi Tech Legion