http://zfsonlinux.org/faq.html#WhatKernelVersionsAreSupported
On October 10, 2014 9:20:50 PM EDT, lee wrote:
>John Holland writes:
>
>> I'm having very good results using their repo and DKMS system to
>build
>> support into kernel modules. It's very easy to set up. I'm using it
>> with Linux 3.2
Don Armstrong writes:
> On Sat, 11 Oct 2014, lee wrote:
>> Well, who can afford that? Someone who can doesn't need to swap
>> drives.
>
> I've upgraded the drive capacity in machines on multiple occasions
> because drives have gotten cheaper... but we don't have enough funding
> to afford replaci
Hi.
On Sat, 11 Oct 2014 03:20:50 +0200
lee wrote:
> > The license of ZFS makes it impossible to be part of
> > the kernel per se. The DKMS system is well known for supporting kernel
> > modules for video and wireless hardware among others.
>
> So there isn't really any way to tell whether it w
On Sat, 11 Oct 2014, lee wrote:
> Well, who can afford that? Someone who can doesn't need to swap
> drives.
I've upgraded the drive capacity in machines on multiple occasions
because drives have gotten cheaper... but we don't have enough funding
to afford replacing the computers at the same time.
John Holland writes:
> It's been a while since I dealt with lvm snapshots but they are
> available as I guess block devices somehow, you might have to google to
> find out how to get the exact path to the snapshot.
When I put a snapshot onto a block device, it should be available just
like the b
John Holland writes:
> I'm having very good results using their repo and DKMS system to build
> support into kernel modules. It's very easy to set up. I'm using it
> with Linux 3.2.0.
Does it work with Debians 3.16 kernels?
> The license of ZFS makes it impossible to be part of
> the kernel per
Don Armstrong writes:
> On Tue, 07 Oct 2014, lee wrote:
>> Don Armstrong writes:
>> > Doesn't matter. It just has to be a block device that you can add as
>> > a physical volume to the volume group.
>>
>> Isn't a logical volume of a volume group "just" a block device? The
>> VMs have their LVs a
John Holland writes:
> You can copy with dd from the snapshot to another block device or a
> file. That file can be on the same computer or you can get it to
> another computer by using netcat, NFS, rsync etc.
Well, yes, if I could make a snapshot in the first place ...
--
Hallowed are the De
On 10/7/2014 7:09 PM, John Holland wrote:
> The license of ZFS makes it impossible to be part of
> the kernel per se.
I have read multiple threads that explain why this is not true.
don't understand them, wish I did...
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with a s
You can copy with dd from the snapshot to another block device or a
file. That file can be on the same computer or you can get it to
another computer by using netcat, NFS, rsync etc.
On Tue, 7 Oct 2014 19:10:54 -0400
John Holland wrote:
> It's been a while since I dealt with lvm snapshots but th
It's been a while since I dealt with lvm snapshots but they are
available as I guess block devices somehow, you might have to google to
find out how to get the exact path to the snapshot.
On Sun, 05 Oct 2014 21:47:05 +0200
lee wrote:
> John Holland writes:
>
> > I think you can pipe output of
I'm having very good results using their repo and DKMS system to build
support into kernel modules. It's very easy to set up. I'm using it
with Linux 3.2.0. The license of ZFS makes it impossible to be part of
the kernel per se. The DKMS system is well known for supporting kernel
modules for video
On Tue, 07 Oct 2014, lee wrote:
> Don Armstrong writes:
> > Doesn't matter. It just has to be a block device that you can add as
> > a physical volume to the volume group.
>
> Isn't a logical volume of a volume group "just" a block device? The
> VMs have their LVs as block devices just fine.
Sur
Don Armstrong writes:
> On Sun, 05 Oct 2014, lee wrote:
>> So it would have to be at least a partition? I don't have one free ...
>> I could use the swap partition temporarily for something like that.
>
> Doesn't matter. It just has to be a block device that you can add as a
> physical volume to
Brian Candler writes:
>> The volume group concept is for grouping the *disks*, so you can treat
>> a group of disks with similar properties as a
>> interchangeable. So it makes more sense to have volume groups for
>> e.g. "15krpm" and "SSD". Or you can just have one big volume group,
>> which m
The volume group concept is for grouping the *disks*, so you can treat
a group of disks with similar properties as a
interchangeable. So it makes more sense to have volume groups for
e.g. "15krpm" and "SSD". Or you can just have one big volume group,
which makes disk upgrades seamless.
And rem
On Sun, 05 Oct 2014, lee wrote:
> So it would have to be at least a partition? I don't have one free ...
> I could use the swap partition temporarily for something like that.
Doesn't matter. It just has to be a block device that you can add as a
physical volume to the volume group. [And obviously,
John Holland writes:
> I think you can pipe output of dd on the source to netcat, going to a netcat
> on the destination machine which is piped to dd going to a device or file on
> that machine.
Hm, assuming that the volume group resides on /dev/sda3, I would have
something like 'dd if=/dev/
PaulNM writes:
> On 10/04/2014 04:09 PM, Don Armstrong wrote:
>> On Fri, 03 Oct 2014, Karl E. Jorgensen wrote:
>>> On Fri, Oct 03, 2014 at 08:43:06PM +0200, lee wrote:
Can I create a snapshot over the network on disks an another
machine?
>>>
>>> No
>>
>> You can, but not trivially. Use
Don Armstrong writes:
> On Fri, 03 Oct 2014, Karl E. Jorgensen wrote:
>> On Fri, Oct 03, 2014 at 08:43:06PM +0200, lee wrote:
>> > Can I create a snapshot over the network on disks an another
>> > machine?
>>
>> No
>
> You can, but not trivially. Use nbd, iscsi or similar to share a block
> devi
John Holland writes:
> Zfsonlinux.org has info on using ZFS with debian. I create vm images
> and snapshot them and clone the snapshots all the time. The clones are
> writable and only use as much space as corresponds to the difference
> from the source. The volumes have to be ZVOL s, not regular
On 10/04/2014 04:09 PM, Don Armstrong wrote:
> On Fri, 03 Oct 2014, Karl E. Jorgensen wrote:
>> On Fri, Oct 03, 2014 at 08:43:06PM +0200, lee wrote:
>>> Can I create a snapshot over the network on disks an another
>>> machine?
>>
>> No
>
> You can, but not trivially. Use nbd, iscsi or similar to s
/04/2014 - 4:09 PM
To: debian-user@lists.debian.org
Subject: Re: lvm: creating a snapshot
> On Fri, 03 Oct 2014, Karl E. Jorgensen wrote:
>> On Fri, Oct 03, 2014 at 08:43:06PM +0200, lee wrote:
>> > Can I create a snapshot over the network on disks an another
>> > machine
very reliable.
--
John Holland
jholl...@vin-dit.org
gpg public key ID 0x9551CF2D
- Original Message -
From: lee
Sent: 10/04/2014 - 9:31 AM
To: debian-user@lists.debian.org
Subject: Re: lvm: creating a snapshot
> "Karl E. Jorgensen" writes:
>
>> Hi
>>
>
On Fri, 03 Oct 2014, Karl E. Jorgensen wrote:
> On Fri, Oct 03, 2014 at 08:43:06PM +0200, lee wrote:
> > Can I create a snapshot over the network on disks an another
> > machine?
>
> No
You can, but not trivially. Use nbd, iscsi or similar to share a block
device over the network, and then use lv
"Karl E. Jorgensen" writes:
> Hi
>
> On Fri, Oct 03, 2014 at 08:43:06PM +0200, lee wrote:
>> Hi,
>>
>> how can I create a LVM snapshot of a VM?
>>
>>
>> root@heimdall:~# lvcreate -L 4G -s /dev/mapper/vg_guests-lv_jarl -n
>> lv_snap_jarl /dev/mapper/vg_mydata
>> Physical Volume "/dev/mapper/
Hi
On Fri, Oct 03, 2014 at 08:43:06PM +0200, lee wrote:
> Hi,
>
> how can I create a LVM snapshot of a VM?
>
>
> root@heimdall:~# lvcreate -L 4G -s /dev/mapper/vg_guests-lv_jarl -n
> lv_snap_jarl /dev/mapper/vg_mydata
> Physical Volume "/dev/mapper/vg_mydata" not found in Volume Group
> "vg
Hi,
how can I create a LVM snapshot of a VM?
root@heimdall:~# lvcreate -L 4G -s /dev/mapper/vg_guests-lv_jarl -n
lv_snap_jarl /dev/mapper/vg_mydata
Physical Volume "/dev/mapper/vg_mydata" not found in Volume Group "vg_guests"
root@heimdall:~#
There is no free space in 'vg_guests'. The only
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