[kwlug-disc] SSD Failure Symptoms and Recovering Data?

[Benjamin Tompkins]

I agree with Ron on this one.  You pretty much can't go wrong with any of
the Samsung EVO/PRO SSDs.  I personally have a couple of the 850 and 960s
in use at home.

On Thu, Nov 8, 2018 at 9:35 AM Ron Singh <ronsingh149 at gmail.com> wrote:

> Sorry to hear of your SSD woes Khalid, must be a ton of read retries
> causing the slow copy?
>
> We use a ton of Samsung 860 Pro and EVO in my world for
> laptops/workstations and cache devices on NAS units. The 860 PRO with it's
> LMC tech is likely overkill for an end-user situation and the prices are
> brutal.
>
> The 860 EVO is the perfect blend of decent pricing and unparalleled
> reliability compared to it's peers in the TLC realm.
>
> We have used Intel, Sandisk, Crucial/Micron, and Samsung since about 2009
> and the Samsung are the ones holding up best, only about 4-5 failures in 9
> years within a population of at least 3000 units in play. The Intel units
> were the worse.
>
> The prices online at at CC are remarkably low for Samsung and a fair
> number of SSDs out there, hard to go wrong.
>
> Thanks,
>
> Ron Singh
>
>
>
> On Wed, Nov 7, 2018 at 11:25 PM Khalid Baheyeldin <kb at 2bits.com> wrote:
>
>> So, the excepted happened and a laptop with an SSD failed.
>>
>> The laptop itself is OK, despite its age, but the SSD (added in the past
>> few years), failed.
>> First, it was a SMART error like this:
>>
>> Device: /dev/sda [SAT], 1 Offline uncorrectable sectors
>>
>> Device info:
>> HP SSD S700 120GB, S/N:xxxx, FW:Q0330B1, 120 GB
>>
>> Then it was 3 sectors, and yesterday it was 33 sectors.
>>
>> I started copying the data off of the SSD to an external USB disk. It is
>> working, but it is very slow.
>> The shell command is slow when I press tab for command completion. Most
>> commands time out (systemd reports several timeouts). The disk is mounted
>> read only.
>>
>> The copying is now a day and a half for a only a few tens of GB. The
>> target disk flickers once every minute or so.
>>
>> Why is this copying too slow?
>>
>> Another question is what replacement SSD should I get. Ron Singh posted a
>> while back about Samsung EVO 860, which are still on sale at Canada
>> Computers and BestBuy (ends tomorrow), e.g.
>>
>>
>> https://www.canadacomputers.com/product_info.php?cPath=179_1229_1088&item_id=120021
>>
>> Are these still a good value? Or are there alternatives?
>> --
>> Khalid M. Baheyeldin
>> 2bits.com, Inc.
>> Fast Reliable Drupal
>> Drupal optimization, development, customization and consulting.
>> Simplicity is prerequisite for reliability. -- Edsger W.Dijkstra
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>>
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