Thank you to both of you.
Things are clearer. And since it's a spare disk and I want to test for
example between eSata and USB connections, I will test various
things.
And if I find something of value (would it be only the differences of
throughput between USB and eSata or the differences of the
Hi.
On 2019-07-26 13:41, tlaro...@polynum.com wrote:
Hello,
On Fri, Jul 26, 2019 at 01:23:34PM +0200, Johnny Billquist wrote:
I think it's a serious mistake to use the physical action inside the disk as
any kind of indication that there is any actual work going on, from the
perspective of
tlaro...@polynum.com writes:
You have said that you are hearing "write noises". I would suggest that
you don't actually know that; you are simply hearing noises. Writing
and reading are basically silent. What you hear is rotation and
seeking. It would not surprise me if the disk moved the
Hello,
On Fri, Jul 26, 2019 at 01:23:34PM +0200, Johnny Billquist wrote:
> I think it's a serious mistake to use the physical action inside the disk as
> any kind of indication that there is any actual work going on, from the
> perspective of system data transfers.
>
> The disk can internally be
I think it's a serious mistake to use the physical action inside the
disk as any kind of indication that there is any actual work going on,
from the perspective of system data transfers.
The disk can internally be doing various stuff at any point, which is
totally irrelevant from this
On Thu, Jul 25, 2019 at 08:21:02PM -0400, Greg Troxel wrote:
> tlaro...@polynum.com writes:
>
> >> Another question is if your disk is following the specifications
> >>
> >
> > It's a not used disk but not new that I'm using as a guinea pig because
> > I don't trust it. It was in a Iomega
tlaro...@polynum.com writes:
>> Another question is if your disk is following the specifications
>>
>
> It's a not used disk but not new that I'm using as a guinea pig because
> I don't trust it. It was in a Iomega enclosure with an ARM board, that I
> bought several years ago (because I
On Thu, Jul 25, 2019 at 07:14:32PM -, Michael van Elst wrote:
> tlaro...@polynum.com writes:
>
> >But I have heard the disk writing after the filesystem was unmounted and
> >the prompt back. Several seconds after, even one minute or a bit more...
>
> unmounting flushes caches, so all writes
tlaro...@polynum.com writes:
>But I have heard the disk writing after the filesystem was unmounted and
>the prompt back. Several seconds after, even one minute or a bit more...
unmounting flushes caches, so all writes will be done when umount
returns.
>This was with the USB connection.
>With
On Thu, Jul 25, 2019 at 06:20:19PM -, Michael van Elst wrote:
> tlaro...@polynum.com writes:
>
> >2) Is there a way to query the status of the disk in order to give a hint
> >to the user about if it's safe or not to unplug the external device?
>
> It is safe to unplug the device when you
tlaro...@polynum.com writes:
>2) Is there a way to query the status of the disk in order to give a hint
>to the user about if it's safe or not to unplug the external device?
It is safe to unplug the device when you have unmounted the filesystem.
--
--
Michael
Hello,
On Thu, Jul 25, 2019 at 12:04:52PM -0400, Greg Troxel wrote:
> tlaro...@polynum.com writes:
>
> > It's then clear that writes are differed (the write cache is not
> > settable with dkctl(8)) and that the disk gets a lot in its cache
> > memory and writing only after.
>
> Does it write
tlaro...@polynum.com writes:
> It's then clear that writes are differed (the write cache is not
> settable with dkctl(8)) and that the disk gets a lot in its cache
> memory and writing only after.
Does it write things within a few seconds?
> 2) Is there a way to query the status of the disk in
If the subject line isn't clear, I hope the explanations will be:
Context: I'm testing an ARM Soc (Olimex Lime2 based on Allwinner A20
and earmv7hf proc) and the board has a SATA port and is able to power
a 2.5" HDD but not a 3.5" one.
I have then to connect an external disk (3.5" HDD) with its
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