[zfs-discuss] best practice to pass zfs volume to qemu/kvm

thibaut noah thibaut.noah at gmail.com
Thu Feb 25 10:42:16 EST 2016


If anybody swing by and knows how to configure sharing with samba to a
windows guest (libvirt) with a network bridge please let me know.
I can even throw a few bucks if needed (yes i'm on it since last mail).

2016-02-16 14:34 GMT+01:00 thibaut noah <thibaut.noah at gmail.com>:

> Good to know, will check if it is possible to compress data already on
> disks like with a scrum or something.
>
> Yup that is what is was thinking about.
> Thanks for the help guys, gonna put my head in samba documentation
>
> 2016-02-16 13:22 GMT+01:00 Gordan Bobic via zfs-discuss <
> zfs-discuss at list.zfsonlinux.org>:
>
>>
>> On Tue, Feb 16, 2016 at 11:52 AM, thibaut noah <thibaut.noah at gmail.com>
>> wrote:
>>
>>> Hum, i remember reading somewhere that compression should have 4cores or
>>> something like this.
>>>
>>
>> Nowhere near. LZ4 is close enough to free in terms of CPU hit that the
>> recommendation is to enable it for everything except file systems with
>> incompressible data (e.g. compressed media libraries).
>>
>>
>>>
>>>
>>> Basically using the redundancy of the mirror to remove disks without
>>> loosing datas, creating zvol on the disk remove from the mirror, put all
>>> datas to the zvol and then recreate redundancy and voila.
>>>
>>
>> If you mean to use this to create a backup server, that would work. But
>> if you mean to plug the disk you removed back into the primary server, you
>> would have to erase it before re-adding it as a mirror, and then resilver
>> all of the data to it.
>>
>>
>>
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>>
>
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