A new report indicates that HAMR disk drives may offer lesser increased potentials at larger capacities when SMR is applied. Seagate recently announced its Exos 30 TB+ hard drives which are based on the Mozaic 3+ HAMR platform. This new technology is bringing storage capacities never seen before in a single drive but, according to this report, it may already be susceptible to its own version of Moore’s Law. The new report from Blocks and Files indicates that increased storage capacity potentials at, or above 30 TB may be related to the width of read and write tracks.
Per Blocks and Files:
“The larger the difference between write track width and read track width, the bigger the capacity advantage delivered by shingling. The implication is that there is less scope for shingled capacity addition on HAMR or higher capacity drives because the write tracks are not that much wider than the read tracks.”
Block and Files report notes how using HAMR technology allows 24 TB PMR drives to get a capacity increase of 16.66% to 28 TB. However when SMR is brought into the mix a 30 TB HAMR drive only sees an increase of 2 TB, or 6.66%. Seagate was asked about this peculiarly seeming ratio disparity and Director of Product Line Management Jason Zimmerman Sr. said “The Mozaic 3+ product offerings are not necessarily completely indicative of the overall SMR vs CMR,” and that “Generally, with Mozaic 3+, we are observing approximately ~10 percent additional capacity gains with SMR over CMR.”
Jason acknowledges the 6% difference but adds it should not be considered “indicative of the technology capability”. This could be alluding that there will be varying ratios at different capacities and it was previously mentioned in another announcement regarding HAMR drives that they could reach as much as 50 TB of storage. Jason also says that while Block and Files’ “observation” is correct regarding the size of the tracks (TPI) with CMR having diminishing returns with SMR but that relationship is not dependent on the type of recording technology used, be it either HAMR or PMR.
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Discussion (9 replies)
Join Discussion →Well took it far enough I guess.
We just need solid state prices to drop, then shouldn't be too much of an issue to scale it up.
"Uvilla, post: 81649, member: 397" wrote:Well took it far enough I guess.
We just need solid state prices to drop, then shouldn't be too much of an issue to scale it up.
Imagine the capacities of solid state growing near 2nm. Or better yet solid state drives with internal batteries that can keep data alive for extended periods of time so you can have even MORE capacity. Of course cold storage wouldn't work for them but for enterprises... maybe.
The tech is amazing.
Thinking back to using my first Apple 2 (no plus or e) and an audio tape to save your program -if it felt like working- having to type LOAD (no lower case on the 40*24 text only display) and quickly press play hoping you got the start point right,
Then, OMG, I could do 140k (280 with a hole punch) on a single floppy disk!?!?!?!
I thought I would never fill up the first disk. Who needs more data/programs than that?
Now my local network has 36tb (not all that much really) of storage between Desktop/Laptop and a little NAS off my router).
So..... Not counting my Blueray or any cloud storage (or in the closet not in use older HD's) I now have storage equal to ~128.6 trillion double sided Apple 2 floppy disks. This over ~40 years of tech upgrades.
That new 30tb drive being equal to just about 107,000,000,000,000 floppies, twice that if you dont have a hole punch handy.
Makes me less worried about them only getting a 6% increase vs 10%. Where will we be in another 40 years?
"Elf_Boy, post: 81655, member: 438" wrote:Makes me less worried about them only getting a 6% increase vs 10%. Where will we be in another 40 years?
If you're 50 this year like me. Eating pudding and trying to grope young nurses. ;)
Or ideally our mind has been transferred to the 'cloud' where we can live FOREVER!!!
Can always go back to 8” platters. Who needs density when you have volume?
"Grimlakin, post: 81657, member: 215" wrote:Eating pudding and trying to grope young nurses. ;)
HAHAHAHAHAHAHAHAHAHAHAHA what
"DrezKill, post: 81659, member: 230" wrote:HAHAHAHAHAHAHAHAHAHAHAHA what
In another 40 years if I'm still around.
"Grimlakin, post: 81660, member: 215" wrote:In a other 40 years if I'm still around.
40 yrs!? Pfft… pudding is delicious
"Brian_B, post: 81661, member: 96" wrote:40 yrs!? Pfft… pudding is delicious
Pudding sucks, I'll do intravenous :p :p
Discussion (9 replies)
Join Discussion →Well took it far enough I guess.
We just need solid state prices to drop, then shouldn't be too much of an issue to scale it up.
Imagine the capacities of solid state growing near 2nm. Or better yet solid state drives with internal batteries that can keep data alive for extended periods of time so you can have even MORE capacity. Of course cold storage wouldn't work for them but for enterprises... maybe.
The tech is amazing.
Thinking back to using my first Apple 2 (no plus or e) and an audio tape to save your program -if it felt like working- having to type LOAD (no lower case on the 40*24 text only display) and quickly press play hoping you got the start point right,
Then, OMG, I could do 140k (280 with a hole punch) on a single floppy disk!?!?!?!
I thought I would never fill up the first disk. Who needs more data/programs than that?
Now my local network has 36tb (not all that much really) of storage between Desktop/Laptop and a little NAS off my router).
So..... Not counting my Blueray or any cloud storage (or in the closet not in use older HD's) I now have storage equal to ~128.6 trillion double sided Apple 2 floppy disks. This over ~40 years of tech upgrades.
That new 30tb drive being equal to just about 107,000,000,000,000 floppies, twice that if you dont have a hole punch handy.
Makes me less worried about them only getting a 6% increase vs 10%. Where will we be in another 40 years?
If you're 50 this year like me. Eating pudding and trying to grope young nurses. ;)
Or ideally our mind has been transferred to the 'cloud' where we can live FOREVER!!!
Can always go back to 8” platters. Who needs density when you have volume?
HAHAHAHAHAHAHAHAHAHAHAHA what
In another 40 years if I'm still around.
40 yrs!? Pfft… pudding is delicious
Pudding sucks, I'll do intravenous :p :p