On 18 May 2010 23:20, trotter m.nutt...@ukonline.co.uk wrote:
In the desktop arena with 3.5 the experience of my last 2 drives would
bare out your thinking. The western digital blue 640GB has 2 error sectors
reallocated as soon as i installed it. The 1.5TB Seagate has had 3 sectors
go bad
I would like it if Linux would at least tell me which files got hit by
the reallocation.
It probably can't tell.
Reallocation happens by way of the drive controller; the main OS is not
involved, nor even informed unless it specifically asks. I'm not aware of
any way to inquire about the
On 19 May 2010 11:14, Vic l...@beer.org.uk wrote:
I would like it if Linux would at least tell me which files got hit by
the reallocation.
It probably can't tell.
Reallocation happens by way of the drive controller; the main OS is not
involved, nor even informed unless it specifically
On Wed, 2010-05-19 at 11:14 +0100, Vic wrote:
So, I lost 3 sectors, so which files have 512 bytes missing?
None of them. That's the purpose of reallocating sectors, not just letting
them fail.
Yes, if data is actually unrecoverable (as happened in my notebook's
hard disc: 3 bad sectors at
reallocations appear in the Linux syslog
Really? I've only ever seen summary information from smartmontools there.
I've also been unable to find anything in Google to support the idea that
actual reallocation map data goes into syslog; perhaps you'd post some
examples so we can all learn about
Yes, if data is actually unrecoverable (as happened in my notebook's
hard disc: 3 bad sectors at the time of replacement, lost a video) the
drive will kick up a fuss-load of ATA errors, which will be reported all
over dmesg.
That's for broken sectors, not sector reallocation; if the data is
On 19 May 2010 11:46, Vic l...@beer.org.uk wrote:
reallocations appear in the Linux syslog
Really? I've only ever seen summary information from smartmontools there.
I've also been unable to find anything in Google to support the idea that
actual reallocation map data goes into syslog;
On 19 May 2010 12:03, James Courtier-Dutton james.dut...@gmail.com wrote:
On 19 May 2010 11:46, Vic l...@beer.org.uk wrote:
reallocations appear in the Linux syslog
Really? I've only ever seen summary information from smartmontools there.
I've also been unable to find anything in Google to
On Wed, May 19, 2010 at 11:58:14AM +0100, Vic wrote:
Yes, if data is actually unrecoverable (as happened in my notebook's
hard disc: 3 bad sectors at the time of replacement, lost a video) the
drive will kick up a fuss-load of ATA errors, which will be reported all
over dmesg.
That's
Example of a syslog entry for one of the above:
Apr 27 11:26:42 quad kernel: [ 3821.830237] sd 2:0:0:0: [sde]
Unhandled sense code
Unhandled sense code. That's a good start. Do you think this is a
reallocation?
Apr 27 11:26:42 quad kernel: [ 3821.830239] sd 2:0:0:0: [sde] Result:
On 19 May 2010 12:21, Vic l...@beer.org.uk wrote:
If the data is not recovered, you haven't got a reallocation - you've got
a disk failure. Disk failures do occur; they are less frequent than they
might be because of the drive's ability to swap out failing sectors before
they are completely
On 19 May 2010 12:22, Hugo Mills h...@carfax.org.uk wrote:
On Wed, May 19, 2010 at 11:58:14AM +0100, Vic wrote:
Yes, if data is actually unrecoverable (as happened in my notebook's
hard disc: 3 bad sectors at the time of replacement, lost a video) the
drive will kick up a fuss-load of ATA
The main route to discovering you've got a failed drive or part of
drive is when you can't read the data that was originally put on
it. This will come to light either when a checksum is computed and
fails comparison, or when part of the hardware is operating outside
the parameters that
My understanding of reallocation is the same as Hugo's. Maybe I just
explaining it badly.
Hugo's argument appears to be that data reallocation is not as effective
as we would like. Yours appears to be very different - claiming a firmware
bug because you found an unrecoverable sector is just
On 19 May 2010 12:45, Vic l...@beer.org.uk wrote:
In the event of an ECC failure, the sector will not be reallocated - it is
already failed.
This is the crux of the difference between your and my point of view.
You say the sector will not be reallocated.
I say it will and I believe Hugo also
In the event of an ECC failure, the sector will not be reallocated - it
is
already failed.
This is the crux of the difference between your and my point of view.
You say the sector will not be reallocated.
I say it will
Why would it?
If the block has already failed, and the drive
On Wed, May 19, 2010 at 01:36:35PM +0100, James Courtier-Dutton wrote:
On 19 May 2010 12:45, Vic l...@beer.org.uk wrote:
In the event of an ECC failure, the sector will not be reallocated - it is
already failed.
This is the crux of the difference between your and my point of view.
You
Hi guys,
My laptop hardrive is faulty, does anyone have a spare/old one I can
have/buy
details are :
Fujitsu MHV2080BH 80 Gb Sata
8mm thick
size is unimportant as long as it is big enough to install unbuntu on .
please contact me off line
cheers
Dawn
--
Please post to:
My laptop hardrive is faulty, does anyone have a spare/old one I can
have/buy
Second-hand HDDs are usually a bad investment - they have a limited
lifespan, so if someone else has taken one out of service, it's probably
used up quite a bit of that life...
A brand-spankers SATA laptop drive can
At 20:12 18/05/2010, you wrote:
My laptop hardrive is faulty, does anyone have a spare/old one I can
have/buy
Second-hand HDDs are usually a bad investment - they have a limited
lifespan, so if someone else has taken one out of service, it's probably
used up quite a bit of that life...
A
On Tuesday 18 May 2010 23:20:49 trotter wrote:
At 20:12 18/05/2010, you wrote:
My laptop hardrive is faulty, does anyone have a spare/old one I can
have/buy
Second-hand HDDs are usually a bad investment - they have a limited
lifespan, so if someone else has taken one out of service,
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