On 12/9/20 1:31 AM, Kevin Kofler via devel wrote:
It follows that the solutions are nonnegative under the following
conditions:
* a+b≥c
* a+c≥b
* b+c≥a
which are quite logical. Consider a=4, b=1, and c=1, i.e., disks of 4 GB,
1 GB, and 1 GB. Each of the 1 GB disks can only mirror (at most) 1 of
On Tue, Dec 8, 2020 at 5:08 PM Kevin Kofler via devel
wrote:
>
> Sergio Belkin wrote:
> > So, let's say we have 3 small disks: 4GB, 3G, and 2GB.
> >
> > If I create one file of 3GB I think that
> > 3 GB is written on 4GB disk, it leaves 1 GB free.
> > 3 GB of copy is written on 3 GB disk, it
El mar, 8 dic 2020 a las 20:21, Chris Murphy ()
escribió:
> On Tue, Dec 8, 2020 at 12:22 PM Sergio Belkin wrote:
> >
> > Hi!
> > I've read the explanation about how much space is available using disks
> with different sizes[1]. I understand the rules, but I see a contradiction
> with definition
PS:
I wrote:
> The optimum size can theoretically be achieved by using the following
> physical partitioning:
> * x GB on the 4 GB disk and the 3 GB disk,
> * y GB on the 4 GB disk and the 2 GB disk, and
> * z GB on the 3 GB disk and the 2 GB disk,
> for a total of x+y+z GB, where x, y, and z
Sergio Belkin wrote:
> So, let's say we have 3 small disks: 4GB, 3G, and 2GB.
>
> If I create one file of 3GB I think that
> 3 GB is written on 4GB disk, it leaves 1 GB free.
> 3 GB of copy is written on 3 GB disk, it leaves 0 GB Free.
>
> So, I create one file of 1GB that is written on 4GB
On Tue, Dec 8, 2020 at 12:22 PM Sergio Belkin wrote:
>
> Hi!
> I've read the explanation about how much space is available using disks with
> different sizes[1]. I understand the rules, but I see a contradiction with
> definition of RAID-1 in btrs:
>
> «A form of RAID which stores two complete
Hi!
I've read the explanation about how much space is available using disks
with different sizes[1]. I understand the rules, but I see a contradiction
with definition of RAID-1 in btrs:
«A form of *RAID* which stores two complete copies of each piece of data.
Each copy is stored on a different
