[kwlug-disc] Need a new SSD ...

[Ron Singh]

Agreed, stay the hell away from QVO/QVC, 4-bits/cell is asking too much,
Even for low write-cycles backup arrays, I get nervous about QLC.
TLC(triple-bit) is where it's at with drives that have a decent amount of
reserve cells.
My personal preference are the MLC(2-bits/cell) but those are hard to come
by now and pretty spendy.

Since Khalid is zeroing in on a 500G device, he likely will not be wading
though the QLC stuff out there.

Ron S.



On Fri, Mar 24, 2023 at 6:21 PM Mark Steffen <mark at steffen.ca> wrote:

> I’ve had good luck with mx500 but beware the larger ones are now QLC in
> many cases. Samsung Evo good also. Avoid QLC and avoid drives without
> DRAM.  Even if you don’t need a bigger drive the extra size will help with
> wear leveling (longevity) and performance (striping reads and writes across
> the NAND cells).
>
> Sent from my iPhone
>
> On Mar 24, 2023, at 17:34, Ron Singh <ronsingh149 at gmail.com> wrote:
>
> 
> Big fan of Samsung EVO and PRO SSDs, zero failures.  Same with any of the
> Crucial MX500 series, see --
>
> https://www.canadacomputers.com/product_info.php?cPath=179_4230&item_id=120759
>
> ...that said, my brother at Vision Computers is a big fan of the WD Blue
> devices, zero failures for many years, I think going back to 2016.
> You will not go wrong with any of these choices.
>
> The much larger-than-needed capacity of the drives you cite below will
> also prove beneficial for the wear-leveling algos used in these drives as
> said algos will have a heck of a lot more cells to use.
>
> Thanks,
>
> Ron S.
>
>
>
> On Fri, Mar 24, 2023 at 5:18 PM Khalid Baheyeldin <kb at 2bits.com> wrote:
>
>> My laptop's SSD is starting to report errors.
>> Every day for the past few days there are these errors:
>>
>> Device: /dev/sda [SAT], 1 Offline uncorrectable sectors
>> Device: /dev/sda [SAT], 1 Currently unreadable (pending) sectors
>>
>> The device is: OSSD256GBTSS2, FW:S1022A0, 256 GB
>>
>> Then upon rebooting, I see failed commands in dmesg.
>>
>> Since I am only using ~ 50GB, that capacity is sufficient.
>>
>> Looking at what is on sale now, I see:
>>
>> WD Blue
>>
>> https://www.bestbuy.ca/en-ca/product/wd-blue-500gb-internal-solid-state-drive-wdbb8h5000anc-wrsn/16366472
>>
>> Kingston
>>
>> https://www.bestbuy.ca/en-ca/product/kingston-technology-480gb-sata-iii-internal-solid-state-drive-sa400s37-480g/11617915
>>
>> Samsung EVO
>>
>> https://www.bestbuy.ca/en-ca/product/samsung-870-evo-500gb-sata-iii-internal-solid-state-drive-mz-77e500b-am-english/15266458
>>
>> Which of these will be more reliable?
>> --
>> Khalid M. Baheyeldin
>>
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