similar to: IO rate of tar-in, what can we expect on a qcow2 image?

Hi Soeren, We encounter here a deadlock with a quite new ATA 120GB disk. The disk worked good for about 3 weeks, but now we have a strange problem. There seems to be one defective file on the disk. fsck doesn't find it, and if I do a cat file > /dev/null The machine locks completly. Serial console is dead, no remote DDB via ALTBREAK possible anymore, no panic message, just freezed. The

Hi, I've seen that this commit never got MFC'd: http://www.freebsd.org/cgi/cvsweb.cgi/src/lib/libc/stdlib/realpath.c?rev=1.14&content-type=text/x-cvsweb-markup Would it be possible to do that or are there any objections out there ? Martin Martin Blapp, <mb@imp.ch> <mbr@FreeBSD.org> ------------------------------------------------------------------ ImproWare AG, UNIXSP

I've experienced some troubles using scp with remote files with spaces, amphersands or parantheses in their filenames on Linux hosts. This happens: stain at false:~$ scp "bender.linpro.no:blapp blapp" . scp: blapp: No such file or directory scp: blapp: No such file or directory stain at false:~$ scp "bender.linpro.no:blapp&blapp" . bash: blapp: command

Hello, i´ve done 2 vm with qcow2 disks and created them with qemu-img with prealloc=metadata. Virt-Manager shows me under the performance settings for the Storage, Cache= Hypervisor Default IO= Hypervisor Default Is this the best setting? Or do i choose "native" IO on prealloc=metadata created disks? And do i have to change Cache too? The Virtualisation Host is gento linux, the

Hi Ian and others, umount(8) -f does crash here on several just updated 4.8STABLE boxes for nfs volumes. Server is an IRIX server. All clients are FreeBSD. Here is a backtrace: #0 dumpsys () at /usr/src/sys/kern/kern_shutdown.c:487 #1 0xc021f1c0 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:316 #2 0xc021f60d in panic (fmt=0xc03bd664 "from debugger") at

Hi, I am working with a file (900MB in size) that has around 10 million records (in particular FASTQ records). I am able to read in the file as an object of BStringSet. When I start to manipulate the data, after almost 4 hours, I get the error message as Error: cannot allocate vector of size X.0 Mb (where X was once 160MB and then 180MB). The R version used is 2.11.1. I am not sure how to check

v1 -> v2: - No functional changes to the patch, just fixes a few bugs. Rich.

Hello, I converted a W2003-Server to a vmdk-image, I didn't think too much back then ... Now I have 2 windows-drives C: and E: inside one vmdk-image-file, which was converted to qcow2. I have installed drivers and stuff into that VM already and would like to avoid to start over again with the vmdk-file -> Is there a way to split that one qcow2 into 2 separate files, one for each

On 02/12/2015 07:41 PM, Edward Young wrote: > Hi all, > > > When I live migrate a vm using > > "migrate --live --copy-storage-all mig-vm qemu+ssh://192.168.1.3/system > tcp://192.168.1.3" > > > I got the following error > > > WARNING: Image format was not specified for > 'nbd://node2:49155/drive-virtio-disk0' and

On Wed, Sep 11, 2013 at 10:33:06AM +0800, bigclouds wrote: > hi,all > images of qcow2 format with backing files, its backing files have > two path infos (absolute path and relative path), This is not true. The file format only contains the relative path. qemu-img info will print an absolute path, but it's not stored inside the file. > how to let > libguestfs use absolute path

Hi, In most cases we use image files as virtual disks under the full-virtualization situation.On the version 4.1.2 of xen,I do the following command: ############################################################ dd if=/dev/zero of=myraw.img bs=1M seek=8K count=1 #Before the command below I install the operating system in myraw.img qemu-img-xen create -b myraw.img -f qcow2 myqcow1.img 20000M

Hi all I have a problem. Two days ago , I used kvm-img create a snapshot of an qcow2 format image. And today I apply the snapshot of this image. The question is can I recovery the image to the last point . I mean Undo this snapshot apply -------------- lyz_pro 2014-03-24

On Thu, Feb 12, 2015 at 08:41:31PM -0600, Edward Young wrote: > Hi all, > > > When I live migrate a vm using > > "migrate --live --copy-storage-all mig-vm qemu+ssh://192.168.1.3/system > tcp://192.168.1.3" > > > I got the following error > > > WARNING: Image format was not specified for >

For the appliance of the QCOW2 format, get the UUID of the disk by reading the first 256k bytes with 'qemu-img dd' command. Then pass the read block to the 'file' command. In case of failure, run the 'file' command again directly. Suggested-by: Denis V. Lunev <den@openvz.org> Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com> ---

Hi, all My xml 'dom1.xml' is as following: <domain type='kvm' id='1'> <name>kvm-xp</name> <description>xp kvm</description> <memory>524288</memory> <currentMemory>524288</currentMemory> <os> <type>hvm</type> <!--loader>/usr/lib/xen/boot/hvmloader</loader--> <boot dev="hd"/>

On 02/13/2015 03:15 AM, Kashyap Chamarthy wrote: > On Thu, Feb 12, 2015 at 08:41:31PM -0600, Edward Young wrote: >> Hi all, >> >> >> When I live migrate a vm using >> >> "migrate --live --copy-storage-all mig-vm qemu+ssh://192.168.1.3/system >> tcp://192.168.1.3" >> >> >> I got the following error >> >> >>

Hi, I want to know how the xen 4.1.2 source code read an qcow2/raw image that is used as a vdi.However I just know i should read some source code about the blktap and tapdisk.and don''t know where to begin. I need your help. hxk _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

On Thu, Aug 13, 2020 at 07:48:52AM +0300, Andrey Shinkevich wrote: > For the appliance of the QCOW2 format, the function get_root_uuid() > fails to get the UUID of the disk image. > In this case, let us read the first 256k bytes of the disk image with > the 'qemu-img dd' command. Then pass the read block to the 'file' > command. > > Suggested-by: Denis V.

Is there any benchmark or does anyone have tried which one is fastest? Regards, -- Thiago Vinhas de Moraes ________________________________________________________ SimpleWeb Tecnologia Inovativa Soluções em cloud computing e gerenciamento de TI Av. das Américas, 500 - Bloco 23 / Sala 215 - Rio de Janeiro - RJ Tel/Fax: 0800-8880-WEB / (21) 3002-0377 Celular: .(21)

thanks . now i know qcow2 only store relative path. look at my error message, 6a3256bb-b247-4fb5-9f75-8ffa7151eeda i a symlink to a LV. it is the backing_file of several images(LV).. i have no idea of the reason of the error. # virt-win-reg 6a3256bb-b247-4fb5-9f75-8ffa7151eeda 'HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion' 'Productname' hivex: