On Sun, Jan 11, 2015 at 1:42 PM, lee wrote:
> Rich Freeman writes:
>>
>> Generally you do backup at the filesystem layer, not at the volume
>> management layer. LVM just manages a big array of disk blocks. It
>> has no concept of files.
>
> That may require downtime while the idea of taking sna
Rich Freeman writes:
> On Sun, Jan 11, 2015 at 8:14 AM, lee wrote:
>> Rich Freeman writes:
>>>
>>> Doing backups with dd isn't terribly practical, but it is completely
>>> safe if done correctly. The LV would need to be the same size or
>>> larger, or else your filesystem will be truncated.
>>
On Sun, Jan 11, 2015 at 8:14 AM, lee wrote:
> Rich Freeman writes:
>>
>> Doing backups with dd isn't terribly practical, but it is completely
>> safe if done correctly. The LV would need to be the same size or
>> larger, or else your filesystem will be truncated.
>
> Yes, my impression is that i
Rich Freeman writes:
> On Sat, Jan 10, 2015 at 1:22 PM, lee wrote:
>> Rich Freeman writes:
>>>
>>> You can dd from a logical volume into a file, and from a file into a
>>> logical volume. You won't destroy the volume group unless you do
>>> something dumb like trying to copy it directly onto a
On Sat, Jan 10, 2015 at 1:22 PM, lee wrote:
> Rich Freeman writes:
>>
>> You can dd from a logical volume into a file, and from a file into a
>> logical volume. You won't destroy the volume group unless you do
>> something dumb like trying to copy it directly onto a physical volume.
>> Logical v
Rich Freeman writes:
> On Fri, Jan 9, 2015 at 4:02 PM, lee wrote:
>> Rich Freeman writes:
>>
>>> On Mon, Dec 29, 2014 at 8:55 AM, lee wrote:
Just why can't you? ZFS apparently can do such things --- yet what's
the difference in performance of ZFS compared to hardware raid?
On Fri, Jan 9, 2015 at 4:02 PM, lee wrote:
> Rich Freeman writes:
>
>> On Mon, Dec 29, 2014 at 8:55 AM, lee wrote:
>>>
>>> Just why can't you? ZFS apparently can do such things --- yet what's
>>> the difference in performance of ZFS compared to hardware raid?
>>> Software raid with MD makes for
thegeezer writes:
>> Guess what, I still haven't found out how to actually back up and
>> restore a VM residing in an LVM volume. I find it annoying that LVM
>> doesn't have any way of actually copying a LV. It could be so easy if
>> you could just do something like 'lvcopy lv_source
>> other_h
Rich Freeman writes:
> On Mon, Dec 29, 2014 at 8:55 AM, lee wrote:
>>
>> Just why can't you? ZFS apparently can do such things --- yet what's
>> the difference in performance of ZFS compared to hardware raid?
>> Software raid with MD makes for quite a slowdown.
>>
>
> Well, there is certainly n
"J. Roeleveld" writes:
> On Monday, December 29, 2014 03:38:40 AM lee wrote:
>> "J. Roeleveld" writes:
>> > What do you mean with "unusable"?
>>
>> The bridge swallows the physical port, and the port becomes
>> unreachable. IIRC, you can get around this by assigning an IP address
>> to the bri
"J. Roeleveld" writes:
>> with firewalling and routing in between. You can't keep the traffic
>> separate when it all goes over the same bridge, can you?
>
> Not if it goes over the same bridge. But as they are virtual, you can make as
> many as you need.
I made as few as I needed. What sense
On Tue, Dec 30, 2014 at 1:05 PM, J. Roeleveld wrote:
>
> I could do with a hardware controller which can be used to off-load all the
> heavy lifting for the RAIDZ-calculations away from the CPU. And if the stuff
> for the deduplication could also be done that way?
>
The CPU is the least of the re
On Monday, December 29, 2014 02:55:49 PM lee wrote:
> thegeezer writes:
> > On 08/12/14 22:17, lee wrote:
> >> "J. Roeleveld" writes:
> >>> create 1 bridge per physical network port
> >>> add the physical ports to the respective bridges
> >>
> >> That tends to make the ports disappear, i. e. bec
On 29/12/14 13:55, lee wrote:
> thegeezer writes:
>
>> On 08/12/14 22:17, lee wrote:
>>> "J. Roeleveld" writes:
>>>
create 1 bridge per physical network port
add the physical ports to the respective bridges
>>> That tends to make the ports disappear, i. e. become unusable, because
>>> t
On Monday, December 29, 2014 03:38:40 AM lee wrote:
> "J. Roeleveld" writes:
> > What do you mean with "unusable"?
>
> The bridge swallows the physical port, and the port becomes
> unreachable. IIRC, you can get around this by assigning an IP address
> to the bridge rather than to the physical p
On Mon, Dec 29, 2014 at 8:55 AM, lee wrote:
>
> Just why can't you? ZFS apparently can do such things --- yet what's
> the difference in performance of ZFS compared to hardware raid?
> Software raid with MD makes for quite a slowdown.
>
Well, there is certainly no reason that you couldn't serial
thegeezer writes:
> On 08/12/14 22:17, lee wrote:
>> "J. Roeleveld" writes:
>>
>>> create 1 bridge per physical network port
>>> add the physical ports to the respective bridges
>> That tends to make the ports disappear, i. e. become unusable, because
>> the bridge swallows them.
> and if you pa
Mick writes:
>> On Monday 29 Dec 2014 02:25:04 lee wrote:
>> I tried out the latest Gentoo live DVD ... and I was surprised that the
>> software it comes with is so old. Libreoffice 3.x? Seamonkey a couple
>> versions behind?
>>
>> Is the software going to be more recent when I actually instal
On Monday 29 Dec 2014 02:25:04 lee wrote:
> "J. Roeleveld" writes:
> > On Thursday, December 04, 2014 11:55:50 PM lee wrote:
> >> BTW, can I use xfs for the VM, or will it be difficult to get the VM
> >> booted from xfs?
> >
> > Using PV, not at all. As long as the kernel for the VM has XFS suppo
"J. Roeleveld" writes:
> On Monday, December 08, 2014 11:17:26 PM lee wrote:
>> "J. Roeleveld" writes:
>> > create 1 bridge per physical network port
>> > add the physical ports to the respective bridges
>>
>> That tends to make the ports disappear, i. e. become unusable, because
>> the bridge
"J. Roeleveld" writes:
> On Thursday, December 04, 2014 11:55:50 PM lee wrote:
>> BTW, can I use xfs for the VM, or will it be difficult to get the VM
>> booted from xfs?
>
> Using PV, not at all. As long as the kernel for the VM has XFS support built-
> in. (This is valid for other filesystems a
On Tuesday, December 09, 2014 02:26:24 PM thegeezer wrote:
> On 08/12/14 22:17, lee wrote:
> > "J. Roeleveld" writes:
> >> create 1 bridge per physical network port
> >> add the physical ports to the respective bridges
> >
> > That tends to make the ports disappear, i. e. become unusable, because
On 08/12/14 22:17, lee wrote:
> "J. Roeleveld" writes:
>
>> create 1 bridge per physical network port
>> add the physical ports to the respective bridges
> That tends to make the ports disappear, i. e. become unusable, because
> the bridge swallows them.
and if you pass the device then it becomes
On Monday, December 08, 2014 11:17:26 PM lee wrote:
> "J. Roeleveld" writes:
> > create 1 bridge per physical network port
> > add the physical ports to the respective bridges
>
> That tends to make the ports disappear, i. e. become unusable, because
> the bridge swallows them.
What do you mean
"J. Roeleveld" writes:
> create 1 bridge per physical network port
> add the physical ports to the respective bridges
That tends to make the ports disappear, i. e. become unusable, because
the bridge swallows them.
> pass virtual NICs to the VMs which are part of the bridges.
Doesn't that crea
On 08/12/14 11:26, J. Roeleveld wrote:
> On Sunday, December 07, 2014 11:43:38 PM lee wrote:
>> "J. Roeleveld" writes:
>>> On Thursday, December 04, 2014 07:11:12 PM lee wrote:
> Why is the networking complicated? Do you use bridging?
Yes --- and it was terrible to begin with and still is
On Sunday, December 07, 2014 11:43:38 PM lee wrote:
> "J. Roeleveld" writes:
> > On Thursday, December 04, 2014 07:11:12 PM lee wrote:
> >> > Why is the networking complicated? Do you use bridging?
> >>
> >> Yes --- and it was terrible to begin with and still is very complicated.
> >> One of the
"J. Roeleveld" writes:
> On Thursday, December 04, 2014 07:11:12 PM lee wrote:
>> > Why is the networking complicated? Do you use bridging?
>>
>> Yes --- and it was terrible to begin with and still is very complicated.
>> One of the VMs has a network card passed through to do pppoe for the
>> in
On Thursday, December 04, 2014 11:55:50 PM lee wrote:
> Rich Freeman writes:
> > On Thu, Dec 4, 2014 at 3:39 PM, lee wrote:
> >> Rich Freeman writes:
> >>> On Thu, Dec 4, 2014 at 1:11 PM, lee wrote:
> Tomas Mozes writes:
> > The kernel is not in stage3, you have to compile it yourself
On Thursday, December 04, 2014 07:11:12 PM lee wrote:
> Tomas Mozes writes:
> > On 2014-12-04 11:08, lee wrote:
> >> Tomas Mozes writes:
> >>> On 2014-12-04 02:14, lee wrote:
> > name = "gentoobox"
> > kernel = "/xen/_kernel/kernel-3.14.23-gentoo-xen"
> > extra = "root=/dev/xvda1 net.ifnames=0
Rich Freeman writes:
> On Thu, Dec 4, 2014 at 3:39 PM, lee wrote:
>> Rich Freeman writes:
>>
>>> On Thu, Dec 4, 2014 at 1:11 PM, lee wrote:
Tomas Mozes writes:
>
> The kernel is not in stage3, you have to compile it yourself (or
> download from somewhere). When you have the k
On Thu, Dec 4, 2014 at 3:30 PM, lee wrote:
> Rich Freeman writes:
>
>> On Thu, Dec 4, 2014 at 5:09 AM, lee wrote:
>>> Vladimir Romanov writes:
>>>
Well, what's the problem? When i do this, then i just install debian, xen
kernel, then create some config, download gentoo install cd, run
On Thu, Dec 4, 2014 at 3:39 PM, lee wrote:
> Rich Freeman writes:
>
>> On Thu, Dec 4, 2014 at 1:11 PM, lee wrote:
>>> Tomas Mozes writes:
The kernel is not in stage3, you have to compile it yourself (or
download from somewhere). When you have the kernel image binary, the
xen
Rich Freeman writes:
> On Thu, Dec 4, 2014 at 1:11 PM, lee wrote:
>> Tomas Mozes writes:
>>>
>>> The kernel is not in stage3, you have to compile it yourself (or
>>> download from somewhere). When you have the kernel image binary, the
>>> xen configuration for the host can be simple as:
>>
>> C
Rich Freeman writes:
> On Thu, Dec 4, 2014 at 5:09 AM, lee wrote:
>> Vladimir Romanov writes:
>>
>>> Well, what's the problem? When i do this, then i just install debian, xen
>>> kernel, then create some config, download gentoo install cd, run it, and
>>> follow the handbook.
>>
>> How do you r
On Thu, Dec 4, 2014 at 1:11 PM, lee wrote:
> Tomas Mozes writes:
>>
>> The kernel is not in stage3, you have to compile it yourself (or
>> download from somewhere). When you have the kernel image binary, the
>> xen configuration for the host can be simple as:
>
> Compile it with what? Are the so
Tomas Mozes writes:
> On 2014-12-04 11:08, lee wrote:
>> Tomas Mozes writes:
>>
>>> On 2014-12-04 02:14, lee wrote:
Hi,
I'd like to give Gentoo a try and want to install it in a xen VM.
The
server is otherwise running Debian. What would be the best way to do
this?
On Thu, Dec 4, 2014 at 5:09 AM, lee wrote:
> Vladimir Romanov writes:
>
>> Well, what's the problem? When i do this, then i just install debian, xen
>> kernel, then create some config, download gentoo install cd, run it, and
>> follow the handbook.
>
> How do you run the installer CD in a PV VM?
On 2014-12-04 11:08, lee wrote:
Tomas Mozes writes:
On 2014-12-04 02:14, lee wrote:
Hi,
I'd like to give Gentoo a try and want to install it in a xen VM.
The
server is otherwise running Debian. What would be the best way to do
this?
Either you can run a virtual machine using paravirtua
Vladimir Romanov writes:
> Well, what's the problem? When i do this, then i just install debian, xen
> kernel, then create some config, download gentoo install cd, run it, and
> follow the handbook.
How do you run the installer CD in a PV VM? It's not like you could
just boot it, or can you?
Tomas Mozes writes:
> On 2014-12-04 02:14, lee wrote:
>> Hi,
>>
>> I'd like to give Gentoo a try and want to install it in a xen VM. The
>> server is otherwise running Debian. What would be the best way to do
>> this?
>
> Either you can run a virtual machine using paravirtualization (PV) or
> f
On 2014-12-04 02:14, lee wrote:
Hi,
I'd like to give Gentoo a try and want to install it in a xen VM. The
server is otherwise running Debian. What would be the best way to do
this?
Either you can run a virtual machine using paravirtualization (PV) or
full virtualization (HVM).
If you want
Well, what's the problem? When i do this, then i just install debian, xen
kernel, then create some config, download gentoo install cd, run it, and
follow the handbook.
2014-12-04 6:14 GMT+05:00 lee :
> Hi,
>
> I'd like to give Gentoo a try and want to install it in a xen VM. The
> server is othe
Hi,
I'd like to give Gentoo a try and want to install it in a xen VM. The
server is otherwise running Debian. What would be the best way to do
this?
--
Again we must be afraid of speaking of daemons for fear that daemons
might swallow us. Finally, this fear has become reasonable.
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