[linux-lvm] Alert before LVM snapshot becomes full

[linux-lvm] Alert before LVM snapshot becomes full

[Loïc]

Hi all,

Is there a way to launch a script or disable an LVM snaphot before it
becomes full ?
For example I would like to launch a script that will umount the LVM
snapshot and delete it if it reaches 90%.

Lo�c

[linux-lvm] Alert before LVM snapshot becomes full

[Loïc]

[-- Attachment #1: Type: text/plain, Size: 500 bytes --]

Hi all,

I would like to raise my problem because I have not found the answer to my
question by searching on the Internet. Hoping that one of you had
experience with this kind of problem.

I'm looking for a way to launch a script or disable an LVM snaphot before
it becomes full.
For example I would like to launch a script that will umount the LVM snapshot
and delete it if it reaches 90%. That is to avoid LVM issue when snapshot
is full.

Any ideas ?

Thank you in advance.

Loïc

[-- Attachment #2: Type: text/html, Size: 1191 bytes --]

Re: [linux-lvm] Alert before LVM snapshot becomes full

[Zdenek Kabelac]

Dne 29.5.2013 09:56, Lo�c napsal(a):
> Hi all,
>
> I would like to raise my problem because I have not found the answer to my
> question by searching on the Internet. Hoping that one of you had experience
> with this kind of problem.
>
> I'm looking for a way to launch a script or disable an LVM snaphot before it
> becomes full.
> For example I would like to launch a script that will umount the LVM snapshot
> and delete it if it reaches 90%. That is to avoid LVM issue when snapshot is full.
>
> Any ideas ?


Write dmeventd plugin - similar as you can find in upstream git source tree.


BTW - what's is the point to delete it 90% and delete it when it's invalid ?

If you don't need the snapshot you should remove it instantly - since it's 
impact system performance.

And if you need it - it's probably more useful to extend the snapshot.

Zdenek

Re: [linux-lvm] Alert before LVM snapshot becomes full

[Loïc]

[-- Attachment #1: Type: text/plain, Size: 1206 bytes --]

Hi,

Thank you, I will look to try to create my own lvm snapshot dmeventd plugin.

My problem is really special. Unfortunately I can not extend my snapshot.

Loïc


On Wed, May 29, 2013 at 5:15 PM, Zdenek Kabelac <zkabelac@redhat.com> wrote:

> Dne 29.5.2013 09:56, Loďc napsal(a):
>
>  Hi all,
>>
>> I would like to raise my problem because I have not found the answer to my
>> question by searching on the Internet. Hoping that one of you had
>> experience
>> with this kind of problem.
>>
>> I'm looking for a way to launch a script or disable an LVM snaphot before
>> it
>> becomes full.
>> For example I would like to launch a script that will umount the LVM
>> snapshot
>> and delete it if it reaches 90%. That is to avoid LVM issue when snapshot
>> is full.
>>
>> Any ideas ?
>>
>
>
> Write dmeventd plugin - similar as you can find in upstream git source
> tree.
>
>
> BTW - what's is the point to delete it 90% and delete it when it's invalid
> ?
>
> If you don't need the snapshot you should remove it instantly - since it's
> impact system performance.
>
> And if you need it - it's probably more useful to extend the snapshot.
>
> Zdenek
>
>
>

[-- Attachment #2: Type: text/html, Size: 1971 bytes --]