The SSD search continues ...

N

Nhoague

Renowned Member
Sep 29, 2012
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I'm looking for some guidance here! After building many systems with SSD and Proxmox I continue to struggle to find a great SSD. Crucial, PnY, Fanxang we all know are consumer SSD. I've been looking into Silicon Power A58, but even that says its a consumer SSD, but with SLC. So does that mean its viable for zfs? I've seen the Intel Optane but at $250 for 375GB, it's going to take a LOT of disk to get me 4 TB usable. Whats the scoop? Who has a solid 2 / 4 TB SLC SSD that Proxmox loves?

Thanks everyone!
 
Samsung SM883/PM863(a), Micron 5100 Pro/5300 Pro, Intel S4500/S4510/S4600 are some examples. If you search 1.92or 3.84 in the storage category on eBay you should find them. Which to choose depends on what you do. What do you plan to use these for and in what kind of layout?
Here's a comparison but you probably need to translate.
 
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Thank you for your replies! These lists are interesting and I'm really not keen on buying used. I was looking for more of a "I use Micron 5400 and its been great." haha this is exhausting! Weird the Micron 5100 Pro says its enterprise SSD, but it uses TLC? I'm still wrapping my head around TLC, MLC, SLC. Might just go back to spinning disk!

I've got a pretty basic build, running two Windows servers. On spinning disk it ran fine, I upgraded to SSD and its been worse! Used crucial CT2000MX drives. Started out fine, but over two months it has gotten so slow!

Whats also curious, is I've built many zfs proxmox servers with old SSD laying around and it ran fine. That was Proxmox 6.3. Now Proxmox 9 things get so slow. Some kernel change? Any thoughts?
 
The BX500 drives are extremely bad IMHO. You can also find a few threads about it here. Not all consumer SSDs are that bad. Almost all the drives I listed above are ones I own. I had a hyper fixation and bought a lot of stuff for my cluster. I currently use SATA S4500 as boot drive, U.2 P4510 and PM9A3 as guest drive and SATA PM883 in my NAS. Basically whatever I can "cheaply" get my hands on. I'm happy with them. I'm not sure pure SLC drives are even made any more and if they are you probably can't afford them.
 
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Haha thats a fair answer, and thank you for the sound advice!

So for example:

https://www.memory4less.com/lenovo-...840329561329&utm_content=All - SSD Feed Items

This is refurbished? How do I find it new? haha thats all I'm finding out here is ebay or refurb, where do guys go to buy it new? I'm gonna peek at Tiger or Ingram next.

And yes, these Crucial are crap. I guess doesn't matter now anyways that Micron is going direct to AI. <shrug>
 
I don't see a good reason to buy new for personal use. I wouldn't buy "rebranded" ones like the linked though. They have different firmware and SMART values. You can filter by new on eBay but I wouldn't necessarily trust them to be. As for where to buy new this depends a lot on where you need them shipped to.
 
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And the plot thickens. I'm not familiar with U.2.

I'm running a supermicro chasis with Intel(R) Xeon(R) CPU E5-2697 v4 @ 2.30GHz, 512GB RAM, 4 x CT2000BX500 on raidz1, 12TB HDD for backup.

I was hoping to build server, install proxmox, run vm(s). LOL!
 
Then I've read all the posts about disabling services, running log2ram, etc, and while those might be viable "fixes," they aren't a solution. I'd rather go after the solution and not start tinkering with alternatives ya know?
 
In the earlier post on this thread, you seem to focus on SLC but nobody makes SLC SSDs anymore. All SSDs use some of their (typically TLC or QLC) flash as an SLC cache and that does not differentiate consumer/gamer drives from enterprise ones. Try to find SSDs with Power Loss Protection (PLP) as they can really speed up things and lower write amplification as they can cache (sync) writes. The exact type of flash memory then does not matter and those drives have much higher DWPD and TBW.

EDIT: There are some suggestion on this forum about PLP/enterprise drives such as Micron, Intel and certain Samsung lines.
 
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No, its all SATA backplane. I'm seeing alot of these disks, Lenovo Enterprise 1.6TB MLC SATA 6Gbps Hot Swap Mainstream Endurance 3.5-inch Internal Solid State Drive (SSD) for x3250 M6, but im not seeing PLP or such yet.

@leesteken: You're right, I'm down deep in the rabbit hole! I just want someone to tell me here is a 2TB PLP MLC (whatever) that will work nice and fast with ZFS and not cause iowait spikes! haha - and yes I've been stemming from those Intel and Samsung lines too!

All good advice, much appreciate your replies!
 
Nhoague said:
@leesteken: You're right, I'm down deep in the rabbit hole! I just want someone to tell me here is a 2TB PLP MLC (whatever) that will work nice and fast with ZFS and not cause iowait spikes!
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As a search will show: I have good experience with Micron 7450 PRO/MAX. They have PLP and are available with 1.92TB or 3.84TB of storage (110mm M.2). More options with SAS and U.2, U.3.
 
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