On 07/07/2012 02:03 PM, Nico Kadel-Garcia wrote:
> On Sat, Jul 7, 2012 at 4:38 PM, Todd And Margo Chester
> <[log in to unmask]> wrote:
>> On 07/07/2012 07:25 AM, Nico Kadel-Garcia wrote:
>>>
>>> On Sat, Jul 7, 2012 at 6:16 AM, David Sommerseth <[log in to unmask]>
>>> wrote:
>>>>
>>>> On 07/06/2012 02:23 AM, Nico Kadel-Garcia wrote:
>>>>>
>>>>>
>>>>>
>>>>>>>    By the way, if you skip using AHCI and just program the bios
>>>>>>>    for IDE, you don't even have to use an f6 disk to install XP.
>>>>>>>    No sign of drivers doing XP in yet.  Although the day will come.
>>>>>>>
>>>>>>>    Great letter.  Thank you!
>>>>>
>>>>>
>>>>> You didn't notice any performance issues with virtualized IDE versus
>>>>> SCSI?
>>>>
>>>>
>>>>
>>>> IDE and SCSI emulation is not going to impress you on performance.  Using
>>>> virtio for disk access may improve the performance, and the Windows
>>>> drivers
>>>> should be available here:
>>>
>>>
>>> David, I belive that Todd is using "dump" to back up the
>>> virtualization server, not the virtualization guests. The "dump"
>>> comman dwould be completely useless for a Windows partition, whether
>>> FAT32 or NTFS.
>>>
>>>> <http://www.linux-kvm.org/page/WindowsGuestDrivers/Download_Drivers>
>>>
>>>
>>> Now, if you have to back up virtualized Windows *guest* hosts, that's
>>> a whole other set of adventures.
>>>
>>
>> I am backing up the following:
>>
>>
>> $ df
>> Filesystem           1K-blocks      Used Available Use% Mounted on
>> /dev/mapper/luks-xx  946513204 286868552 611564524  32% /
>>
>> KVM, VM's are all just files on this partition.
>
> Oh, you're backing up the *virtual images*. No wonder you're having
> adventures, anything that writes to the disks from the active guest is
> wending its way from the guest, through *its* file systems and
> caching, through the *KVM server's* hosts filesystems and caching, all
> the way to disk.

I am going to have to work on my technical writing.  Apparently,
I did not make it clear that I have my VM's off when I do my backups.
It is when XP's VM has previously run that I have a problem.

And, KVM is now off the hook, because, I am doing a backup and I
have not fired off a single VM this boot cycle, and ...

   DUMP: Volume 1 started with block 1 at: Sat Jul  7 22:59:37 2012
   DUMP: dumping (Pass III) [directories]
   DUMP: dumping (Pass IV) [regular files]
   DUMP: 1.19% done at 11362 kB/s, finished in 6:56
   DUMP: 2.62% done at 12559 kB/s, finished in 6:11
   DUMP: 4.05% done at 12953 kB/s, finished in 5:54

It is doing its five times slower thing.  I wonder if there is something 
coincidentally I do that is causing the slowdown that
I typically do it when I am running XP, maybe like listen to
music while I work, or something else.

I am going to have to pay close attention to what I have run
on the Linux side when I have XP up.

The game is a foot!

-T