Gentoo Archives: gentoo-user

From: Alan McKinnon <alan.mckinnon@×××××.com>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] After sdcard failure / filesystem corruption...out pf pure curiosity...
Date: Sun, 26 Mar 2017 12:20:27
Message-Id: 432db7e4-2931-4137-33a1-40643073e260@gmail.com
In Reply to: [gentoo-user] After sdcard failure / filesystem corruption...out pf pure curiosity... by tuxic@posteo.de
1 On 26/03/2017 14:14, tuxic@××××××.de wrote:
2 > Hi,
3 >
4 > ok, seems that at least the data of one of the three partitions
5 > of my sdcard is toasted...
6 >
7 > But it would be interesting to check, what the initial (?) reason
8 > for that failure is: Hardware or logic -- sdcard or filesystem.
9
10 that failure very seldom happens with spinning disks
11 it very often happens with SDcards
12
13 chances are *huge* that it's the card itself
14
15 >
16 > Is there any flash-memory-friendly and -aware checker out there,
17 > which detects sectors which cannot be recovered back to functioning?
18
19 Not really, to my knowledge no-one has figured out a metric that shows
20 increased odds of pending failure for SD cards.
21
22 They just stop working one day. A lot like fuses actually - there's no
23 way to examine a fuse and predict when it's likely to blow.
24
25 Lesson to be learned: SD cards should only contain stuff you are happy
26 to lose, or of which you have several backups
27
28 --
29 Alan McKinnon
30 alan.mckinnon@×××××.com

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