News Sandisk unveils colossal new 256TB SSD with new UltraQLC flash memory — enterprise-grade SSDs for high density storage also come in 128TB

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-Fran- said:
The worst thing about drives this large, is you cannot buy them in single quantities. You need to run them with backups or mirroring.

Can you imagine losing 100TB+ of data? Holy cow xD

I'm just happy with 2TB drives for now. Cheap and easy to mirror.

Regards.
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TBF, U.2 interface are for datacenters where they're more or less cost no object, speed+data density in their NAS array is what's important
 
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-Fran- said:
The worst thing about drives this large, is you cannot buy them in single quantities. You need to run them with backups or mirroring.

Can you imagine losing 100TB+ of data? Holy cow xD

I'm just happy with 2TB drives for now. Cheap and easy to mirror.

Regards.
Click to expand...
Your backup does not need to be identical physical media (and it's generally preferable to be dissimilar). Depending on backup schedule requirements, you could backup your big SSD to a HDD array, or even to tape.
 
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Amdlova said:
These are big drives for sure.
I want to know how many watts this drivers will burn. 150w ?
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Pretty sure U.2 and E3.L power limits are in effect, with 25W on U.2 and 40W on E3.L. (There's potential for up to 70W on E3.L based on a quick search, but I don't know if that's sustained power or just for brief excursions.)

What I really want is a 128TB version of this configured with MLC NAND, or 64TB with pSLC mode! LOL
 
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These are clearly designed for high-density, low-power archival use and to be put into a very wide array with external write-back caches.

I wonder how many of their limited overwrite cycles might just be spent on maintaining their flash cell charges, since those pesky electrons like to go elsewhere.

Also I presume, they might not take kindly to being powered off for extended periods of time.

I'm pretty sure I'm personally still better served by HDDs because of cost and technical constraints, while nothing yet beats less esoteric SSDs for hot storage.

SAN vendors started using those QLC devices to come very close to SAS HDD pricing with flash, but their technology investment in front of these storage devices was also significant.

With hyperscalers this is surely another level or three, but it's not hard to see how it would pay off for them.

Another nice find, Anton, thank you!
 
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YSCCC said:
TBF, U.2 interface are for datacenters where they're more or less cost no object, speed+data density in their NAS array is what's important
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Not quite. There's U.2 adapters for PCIe X16. I know, because I have plenty friends that do buy U.2 drives from data centres for their NAS'es. Overkill? Perhaps. Cool? No, not really, LOL. Expensive? Yep.

They're not even hard to find and you have even M.2 to U.2 adapters as well. PCIe chaining is a magical thing.

Regards.
 
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I would be happy with SATA SSDs in the 12-20TB range for my Synology NAS. Sure, the interface of a single drive limits bandwidth, but SHR addresses that; my current 16xx with 6x 16TB mechanical drives can cope with a 10Gb LAN connection and manage almost-wire speed transfers consistently. Replacing the HDs with SSDs would easily accomodate 10Gbe transfers, possible bi-directional, or even 2 x 10Gbe interfaces.

Of course NVMe is faster, but the largest NVMe drive I can find is 8TB and horrendously expensive. And no doubt hot. Give me a lower-cost SATA SSD, with a memory technology that can handle SATA-III speed (or close to it) and I'm a happy bunny with a RAID :)

I like the Synology [other brands available] form factor and low power draw; I dont want to build a tower with an EATX board to handle multiple PCIe-attached 4TB NVME drives (I would need 5 PCIe adaptors and 20 drives just to approach 80TB).

But hey, I was also hoping for a single-slot PCIe graphics card in the days of the 1070. Its taken until the 3050 for it to become reality.

In regards to backups, I agree with that best practice dictates backing-up to a different media, but what consumer media has the capacity, interface, and the right price point? As it is, I backup key data, not the entire NAS.
 
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-Fran- said:
The worst thing about drives this large, is you cannot buy them in single quantities. You need to run them with backups or mirroring.

Can you imagine losing 100TB+ of data? Holy cow xD

I'm just happy with 2TB drives for now. Cheap and easy to mirror.

Regards.
Click to expand...
Drives of this size are not for thee and me.

This is like complaining you can't purchase a single Airbus 380, vs fleet. When what you and I actually buy is a Cessna 172.


(and my NAS has 100+TB available drive space...😉 )
 
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edzieba said:
Your backup does not need to be identical physical media (and it's generally preferable to be dissimilar). Depending on backup schedule requirements, you could backup your big SSD to a HDD array, or even to tape.
Click to expand...
I’d say these should definitely be in RAID-1 mode or mirrored at the very least. (And that is not to say that it substitutes a backup, but mirroring is in addition to a backup.)

If you have a backup, that’ll roll you back by whatever duration your backups are run, but will save you from ransomware or deletion (accidental or otherwise) if set up correctly. If you have a live mirror, you can keep chugging along while a hot spare picks up the slack. The two practices are synergistic/complementary; each can fulfill a need that the other cannot.
 
Li Ken-un said:
I’d say these should definitely be in RAID-1 mode or mirrored at the very least. (And that is not to say that it substitutes a backup, but mirroring is in addition to a backup.)

If you have a backup, that’ll roll you back by whatever duration your backups are run, but will save you from ransomware or deletion (accidental or otherwise) if set up correctly. If you have a live mirror, you can keep chugging along while a hot spare picks up the slack. The two practices are synergistic/complementary; each can fulfill a need that the other cannot.
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(In a home setting) If you have a good backup routine you can roll back to, what benefit does the RAID 1 give you?

In a corporate thing, RAID 1, sure. Otherwise, not so much.
 
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USAFRet said:
(In a home setting) If you have a good backup routine you can roll back to, what benefit does the RAID 1 give you?
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If you’re rocking 256-TB-class SSDs, you’re far removed from the kinds of workloads most households are hosting―even the typical home lab.

If you’re on the cusp of affording just one, and you buy one, you’re courting trouble. 🙂
 
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So a petabyte fits in a shoebox. Kewl.
I've never had to deal with anything on this scale, some friends were dealing in petabytes ten years ago when it was still a challenge. NSA must be overjoyed. And these huge new telescopes that input however many terabytes per day, and then people want copies of it, etc.
Wasn't Amazon sending out huge boxes of disks so you could transfer a measly few terabytes up to AWS?
 
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-Fran- said:
They're not even hard to find and you have even M.2 to U.2 adapters as well. PCIe chaining is a magical thing.
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Unfortunately, the ones which contain redrivers are uncommon and expensive. Without them, your M.2 slot might have trouble driving the signal over the U.2 cable.
The safer bet is probably the PCIe carrier cards. I'm currently using one of those and it seems to be working at full PCIe 4.0 speeds.

Even better would be to use a motherboard with OCULink or SlimSAS. You can get cables for connecting U.2 drives to either of those ports.
 
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tich77 said:
Of course NVMe is faster, but the largest NVMe drive I can find is 8TB and horrendously expensive.
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You mean M.2 NVMe drives? If you go for U.2 drives, then ebay is your friend.

tich77 said:
But hey, I was also hoping for a single-slot PCIe graphics card in the days of the 1070. Its taken until the 3050 for it to become reality.
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Again, the problem is that you looked only in the consumer market. There are tons of Pro graphics cards in single-slot form factor. If you buy a couple generations old, you can find them on ebay for not that much more than the consumer models (sometimes, even less!).

tich77 said:
As it is, I backup key data, not the entire NAS.
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Same. I backup the high-value and hard-to-replace stuff. RAID-6 + my old RAID + the SSD I use to cache hot data collectively serve as the backup for the other stuff.
 
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