Random problems with filesystem corruption.

[Gene Heskett]

On Sunday 15 December 2019 14:46:03 Rashkae wrote:

> On 2019-12-15 2:23 p.m., Paul Groves wrote:
> > I do have clonezilla set up on a PXE server on the same network
> > which i use mainly for cloning windows PCs, so can I just clone
> > direct from the HDD to the smaller SSD then swap in the SSD?
>
> If the Superblock has been corrupted... twice. there's really no
> telling how much damage has been done to files.  I would suggest
> rebuilding/re-installing everything from clean sources that can be.
>
> Don't forget to test memory first.. and if there are no errors in
> Smart and memory passes a good 6 hr burnin, then I wouldn't rule out
> sacrificing the write cycle of an SSD to to a complete badblocks
> read/write test.. (you aren't actually looking for bad blocks here,
> but make sure that what the computer thinks is being written to the
> SSD is what's actually getting read back.  Another way to test this
> would be to fill a drive with a bunch of files on a known working
> computer, and do some kind of checksum verification on all of them. 
> Move the drive to your the malfunctioning computer, copy those files
> to SSD, and verify the checksums.)
>
>
> This problem can certainly be caused by a malfunctioning SSD, but it's
> just as likely to be anything else in the I/O Path.  (Memory, Sata
> Controller, Power Supply issues, etc.)

Don't forget the sata cable, particularly if its "hot" red. That 
particular plastic dye has been known to be hell on the wire in it since 
the 1970's by me.  I'm an old CET, and I've poured what looks like rust 
out of hot red plastic insulation where there was originally a stranded 
copper wire, literally hundreds of times.  And I have a bag with 8 or 9 
such sata cables pulled out of my own machines. Replaced with any other 
color of cable but hot red, some might call it magenta. put a tail on 
the log, then touch and move the cable, if the log blows up with sata 
resets, new cable time, and NOT red. 

Cheers, Gene Heskett
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