how to remove a specific disk from an instance ?

[Jean-François Maeyhieux]

 So now I know how to add a disk on an instance but i don't have find a way to remove a specific disk on an instance.

I get an instance with two disk:

- disk/0 (/boot + /)

- disk/1 (/data)

I wish to remove the second one in my case but that could be to remove the 11th one on 20 for exemple.

How could I do it ?

I've read old issue on that case but that was for old ganeti version. I use ganeti 2.6.1

Jean-Francois

[tschend]

Hi Jean-Francois,

take a look at gnt-instance modify docs.

http://docs.ganeti.org/ganeti/current/man/gnt-instance.html

--disk 11:remove should work.

Kind Regards
Thomas

On 13 Nov., 19:10, Jean-François Maeyhieux <zen2dr...@gmail.com>
wrote:

[Guido Trotter]

Does it? From what I read on that page, and from my memory, we still only can remove the "last" disk, short of hand editing the config file. There should already be an issue filed for this.

Thanks,

Guido

[Iustin Pop]

On Wed, Nov 14, 2012 at 09:24:57AM +0100, Guido Trotter wrote:
> Does it? From what I read on that page, and from my memory, we still only
> can remove the "last" disk, short of hand editing the config file. There
> should already be an issue filed for this.

No, that (IIRC) has been fixed for a while.

iustin

[Guido Trotter]

Ah, right. The manpage has this info but not all of it. Will send a patch.

--
Guido Trotter
SRE - Corp Computing Services (aka Horsepower)
Google Germany

[Jean-François Maeyhieux]

Allright, it's explain in manpage but in the part about "The  --disk add:size=SIZE  option".

That could be beeter to have a paragraph on the disk/remove option.

And where is a wrong parameters description in the man page:

MODIFY SECTION:

 [--disk add:size=SIZE[,vg=VG][,metavg=VG] | --disk remove |

        --disk N:mode=MODE]

should be

 [--disk add:size=SIZE[,vg=VG][,metavg=VG] | --disk N:remove |

        --disk N:mode=MODE]

Thanks

    Jean-François

[Guido Trotter]

On Wed, Nov 14, 2012 at 10:33 AM, Jean-François Maeyhieux <zen2...@gmail.com> wrote:

Allright, it's explain in manpage but in the part about "The  --disk add:size=SIZE  option".

That could be beeter to have a paragraph on the disk/remove option.

For now I haven't split the paragraphs, but I'm sure just the fact that the index is reported makes everything clearer, and of course taking the hint one will look for --remove on the page.

 

And where is a wrong parameters description in the man page:

MODIFY SECTION:

 [--disk add:size=SIZE[,vg=VG][,metavg=VG] | --disk remove |

        --disk N:mode=MODE]

should be

 [--disk add:size=SIZE[,vg=VG][,metavg=VG] | --disk N:remove |

        --disk N:mode=MODE]

I just sent a patch to fix this, as mentioned, and it will be released as part of the next 2.6 stable release.

Thanks,

Guido