WD has some new drives. How are they cramming more data per platter diks in there? It's not clear if they use the WHAMR or something.
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WD 18TB and 20 TB
- Thread starter LunarMist
- Start date
Chewy509
Wotty wot wot.
?? The actual NAME of the product contains the recording technology ??
18TB CMR - Conventional Magnetic Recording
20TB SMR - Shingled Magnetic Recording
?? Also super clear in the linked datasheets on the technology being used ??
"Western Digital is combining a new nine-disk platform and energy-assisted recording."
Of course we have already discussed the CMR vs. SMR recording technology, but what is the energy assist technology? I doubt it is like a Chevy.
Of course we have already discussed the CMR vs. SMR recording technology, but what is the energy assist technology? I doubt it is like a Chevy.
sdbardwick
Storage is cool
You just listed it in your previous post. HAMR, MAMR are types of energy assisted recording. Heat (energy) Assisted Magnetic Recording; Microwave (energy) Assisted Magnetic Recording.
jtr1962
Storage? I am Storage!
My guess is all the tricks to increase density cost so much to implement that we end up with the same cost per TB. All most end users care about is cost per TB.
Besides that, I don't think the volume is there any more to drive significant R&D of HDDs. SSDs in sizes most people want (i.e. 2TB or less) can be had for under $100. Very few people want or need even 10TB drives, never mind 20TB. It's basically data centers, and a few outliers like you, who need drives this big. Back in the days when it seemed HDD sizes were doubling every year, every single PC had an HDD, some more than one.
I don't think the cost per TB of the drive is the issue, but the cost of storage including the entire infrastructure.
For a home user like me the cost of the NAS is important, because over 8 bays is significantly more expensive and the size, weight, and power increase. Over 12 bays and you are looking at rack mounts that are even more costly and generally have noisy fans for home use.
In a datacenter the energy and footprint are important considerations.
For a home user like me the cost of the NAS is important, because over 8 bays is significantly more expensive and the size, weight, and power increase. Over 12 bays and you are looking at rack mounts that are even more costly and generally have noisy fans for home use.
In a datacenter the energy and footprint are important considerations.
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I read that the Toshiba 20TB drive has use of the MAMRs, the FC-MAMR species. Maybe it uses the Flux capacitor. 
32TB HAMR drives on the horizon with 40 and 50TB in the pipeline
www.tomshardware.com
Seagate Reveals HAMR HDD Roadmap: 32TB First, 40TB Follows
Seagate expects its 24TB HDD to be its last PMR product.
www.tomshardware.com
Mercutio
Fatwah on Western Digital
WD says it'll have a 28TB drive without any of that weirdo HAMR stuff by next year. Not as exciting as a 32TB drive with laser beams in it, but CMR is decades-proven technology and that probably has some appeal as well, even though I weep for the poor bastard who gets stuck with WD's version of SMR on an almost 30TB volume.