Gentoo Archives: gentoo-user

From: Marc Joliet <marcec@×××.de>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] SDD strategies...
Date: Mon, 06 Apr 2020 13:09:23
Message-Id: 1783776.7Z3S40VBb9@thetick
In Reply to: Re: [gentoo-user] SDD strategies... by David Haller
1 (Hmm, weird, this failed to send and was laying around in my outbox.)
2
3 Am Samstag, 21. März 2020, 16:29:48 CET schrieb David Haller:
4 > Hello,
5 >
6 > On Sat, 21 Mar 2020, Marc Joliet wrote:
7 > >Am Mittwoch, 18. März 2020, 16:56:52 CET schrieb antlists:
8 > [..]
9 >
10 > >> Can't remember where it was - some mag ran a stress-test on a bunch of
11 > >> SSDs and they massively outlived their rated lives ... I think even the
12 > >> first to fail survived about 18months of continuous hammering - and I
13 > >> mean hammering!
14 > >
15 > >The German c't magazine did a similar test of various SSDs from
16 > >different
17 >
18 > I mentioned that in the other thread ("SDD, what features..."), I plan
19 > to sum up the articles tomorrow. I'd guess he means that test ;)
20 >
21 > >price categories, and they all showed the same result (I think some
22 > >exceeded their lifetime by more than a factor of two, and the minimum was
23 > >something like 1.5).
24 >
25 > If you mean TBW by "lifetime": All above factor 2, best: over 18. Ok,
26 > those were the "brand models" (1 Crucial, 1 OCZ (Toshiba), 2 Samsung
27 > and 2 Sandisk, and 2 drives of each model)...
28
29 Yes, that's what I meant (the SSDs are rated for an expected amount of data
30 written they can sustain, and apparently it's estimated very conservatively).
31
32 > Fun fact: one of the test PCs died and killed two of the 3 remaining
33 > SSDs, the second Sandisk Extreme Pro (the first had died already) and
34 > the first Samsung 850 Pro. The remaining second Samsung 850 Pro in the
35 > other Test-PC was still being hammered 4.5 months later with 8 PeBi
36 > written (all drives were 240/256 GB), but showing first "Uncorrectable
37 > Errors" via SMART.
38 >
39 > The test also included the failure mode as well, e.g. "dead as a
40 > brick" in a moment, warning signs via SMART, failure to write but
41 > still readable etc.
42 >
43 > The mag followed that up with a test of el-cheapo SSDs ... which I'll
44 > include in my summary.
45
46 Cool, I forgot most of the details (including that the test was split between
47 brand and cheapo models), so I'm looking forward to your summary!
48
49 > -dnh
50
51 Greetings
52 --
53 Marc Joliet
54 --
55 "People who think they know everything really annoy those of us who know we
56 don't" - Bjarne Stroustrup

Attachments

File name MIME type
signature.asc application/pgp-signature