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RE: [Xen-users] Adding disk image file to existing DomU VM

From: sundaju <s.sundararajan@xxxxxxx>

Date: Thu, 5 Feb 2009 20:36:07 -0800 (PST)

Delivery-date: Thu, 05 Feb 2009 20:37:09 -0800

List-id: Xen user discussion <xen-users.lists.xensource.com>

Thank you Kristofer for your suggestions. I tried out the same and the following is the outcome... 01HW159658:~ # xm block-list 1 Vdev BE handle state evt-ch ring-ref BE-path 768 0 0 4 10 522 /local/domain/0/backend/vbd/1/768 01HW159658:~ # xm block-attach 1 tap:aio:/etc/xen/vmpartitions/addon1 /dev/xvda3 w 0 Error: Device 51715 (vbd) could not be connected. Hotplug scripts not working. 01HW159658:~ # xm block-list 1 Vdev BE handle state evt-ch ring-ref BE-path 768 0 0 4 10 522 /local/domain/0/backend/vbd/1/768 51715 0 0 3 11 686 /local/domain/0/backend/vbd/1/51715 xen-hotplug.log ***************************************************************** export PATH=/sbin:/bin:/usr/bin:/usr/sbin:/usr/local/bin:/bin:/usr/bin:/usr/X11R6/bin:. +++ PATH=/sbin:/bin:/usr/bin:/usr/sbin:/usr/local/bin:/bin:/usr/bin:/usr/X11R6/bin:. +++ export LANG=POSIX +++ LANG=POSIX ++++ set ++++ grep '^LC_' ++++ cut -d= -f1 +++ unset +++ trap sigerr ERR +++ log debug add XENBUS_PATH=backend/vbd/1/51715 +++ local level=debug +++ shift +++ logger -p daemon.debug -- /etc/xen/scripts/block: add XENBUS_PATH=backend/vbd/1/51715 ++ findCommand add ++ for arg in '"$@"' ++ expr index add = ++ command=add ++ return ++ '[' add '!=' add ']' ++ XENBUS_PATH=backend/vbd/1/51715 ++ xenstore_read_default backend/vbd/1/51715/type MISSING ++ xenstore-read backend/vbd/1/51715/type + t=tap + case "$command" in ++ xenstore_read_default backend/vbd/1/51715/physical-device MISSING ++ xenstore-read backend/vbd/1/51715/physical-device ++ echo MISSING + phys=MISSING + '[' MISSING '!=' MISSING ']' ++ xenstore_read backend/vbd/1/51715/params +++ xenstore-read backend/vbd/1/51715/params ++ local v=aio:/etc/xen/vmpartitions/addon1 ++ '[' aio:/etc/xen/vmpartitions/addon1 '!=' '' ']' ++ echo aio:/etc/xen/vmpartitions/addon1 + p=aio:/etc/xen/vmpartitions/addon1 ++ xenstore_read backend/vbd/1/51715/mode +++ xenstore-read backend/vbd/1/51715/mode ++ local v=w ++ '[' w '!=' '' ']' ++ echo w + mode=w + case $t in + '[' -x /etc/xen/scripts/block-tap ']' ***************************************************************** xend.log ***************************************************************** [2009-02-02 13:19:39 xend] DEBUG (DevController:103) DevController: writing {'virtual-device': '768', 'backend-id': '0', 'state': '1', 'backend': '/local/domain/0/backend/vbd/1/768'} to /local/domain/1/device/vbd/768. [2009-02-02 13:19:39 xend] DEBUG (DevController:105) DevController: writing {'domain': 'SAP', 'frontend': '/local/domain/1/device/vbd/768', 'dev': 'hda', 'state': '1', 'params': '/var/lib/xen/images/SAP/hda', 'mode': 'w', 'frontend-id': '1', 'type': 'file'} to /local/domain/0/backend/vbd/1/768. [2009-02-02 13:19:39 xend] DEBUG (DevController:103) DevController: writing {'backend-id': '0', 'mac': '00:16:3e:51:a0:cf', 'handle': '0', 'state': '1', 'backend': '/local/domain/0/backend/vif/1/0'} to /local/domain/1/device/vif/0. [2009-02-02 13:19:39 xend] DEBUG (DevController:105) DevController: writing {'mac': '00:16:3e:51:a0:cf', 'state': '1', 'handle': '0', 'script': '/etc/xen/scripts/vif-bridge', 'frontend-id': '1', 'domain': 'SAP', 'frontend': '/local/domain/1/device/vif/0'} to /local/domain/0/backend/vif/1/0. [2009-02-02 13:19:39 xend.XendDomainInfo] DEBUG (XendDomainInfo:675) Storing VM details: {'ssidref': '0', 'uuid': '2216fc15-99ea-a6d3-ad81-718f235a0c7b', 'on_reboot': 'restart', 'start_time': '1233580779.23', 'on_poweroff': 'destroy', 'name': 'SAP', 'vcpus': '2', 'vcpu_avail': '3', 'memory': '4096', 'on_crash': 'restart', 'image': "(linux (kernel /var/lib/xen/tmp/vmlinuz.ZN3UHb) (ramdisk /var/lib/xen/tmp/initrd.C0B5Dk) (vcpus 2) (args ' TERM=xterm'))", 'maxmem': '4096'} [2009-02-02 13:19:39 xend.XendDomainInfo] DEBUG (XendDomainInfo:700) Storing domain details: {'console/ring-ref': '1665189', 'console/port': '2', 'name': 'SAP', 'console/limit': '1048576', 'vm': '/vm/2216fc15-99ea-a6d3-ad81-718f235a0c7b', 'domid': '1', 'cpu/0/availability': 'online', 'memory/target': '4194304', 'store/ring-ref': '1665190', 'cpu/1/availability': 'online', 'store/port': '1'} [2009-02-02 13:19:39 xend] DEBUG (DevController:132) Waiting for devices vif. [2009-02-02 13:19:39 xend] DEBUG (DevController:138) Waiting for 0. [2009-02-02 13:19:39 xend.XendDomainInfo] DEBUG (XendDomainInfo:881) XendDomainInfo.handleShutdownWatch [2009-02-02 13:19:39 xend] DEBUG (DevController:403) hotplugStatusCallback /local/domain/0/backend/vif/1/0/hotplug-status. [2009-02-02 13:19:39 xend] DEBUG (DevController:403) hotplugStatusCallback /local/domain/0/backend/vif/1/0/hotplug-status. [2009-02-02 13:19:39 xend] DEBUG (DevController:417) hotplugStatusCallback 1. [2009-02-02 13:19:39 xend] DEBUG (DevController:132) Waiting for devices usb. [2009-02-02 13:19:39 xend] DEBUG (DevController:132) Waiting for devices vbd. [2009-02-02 13:19:39 xend] DEBUG (DevController:138) Waiting for 768. [2009-02-02 13:19:39 xend] DEBUG (DevController:403) hotplugStatusCallback /local/domain/0/backend/vbd/1/768/hotplug-status. [2009-02-02 13:19:39 xend] DEBUG (DevController:417) hotplugStatusCallback 1. [2009-02-02 13:19:39 xend] DEBUG (DevController:132) Waiting for devices irq. [2009-02-02 13:19:39 xend] DEBUG (DevController:132) Waiting for devices pci. [2009-02-02 13:19:39 xend] DEBUG (DevController:132) Waiting for devices ioports. [2009-02-02 13:19:39 xend] DEBUG (DevController:132) Waiting for devices vtpm. [2009-02-02 13:19:39 xend] INFO (XendDomain:363) Domain SAP (1) unpaused. [2009-02-03 11:25:24 xend] DEBUG (blkif:24) exception looking up device number for /dev/xvda3: [Errno 2] No such file or directory: '/dev/xvda3' [2009-02-03 11:25:24 xend] DEBUG (DevController:103) DevController: writing {'virtual-device': '51715', 'backend-id': '0', 'state': '1', 'backend': '/local/domain/0/backend/vbd/1/51715'} to /local/domain/1/device/vbd/51715. [2009-02-03 11:25:24 xend] DEBUG (DevController:105) DevController: writing {'domain': 'SAP', 'frontend': '/local/domain/1/device/vbd/51715', 'dev': '/dev/xvda3', 'state': '1', 'params': 'aio:/etc/xen/vmpartitions/addon1', 'mode': 'w', 'frontend-id': '1', 'type': 'tap'} to /local/domain/0/backend/vbd/1/51715. [2009-02-03 11:25:24 xend] DEBUG (DevController:138) Waiting for 51715. [2009-02-03 11:25:24 xend] DEBUG (DevController:403) hotplugStatusCallback /local/domain/0/backend/vbd/1/51715/hotplug-status. Kristofer-3 wrote: > > You can use "xm block-attach". > > xm block-attach <Domain> <BackDev> <FrontDev> <Mode> > > That will hot-add it to a running domU so you don't need to restart it. > > You will also need to add it to your config file for the domain so it is > attached upon the next boot of the domU. > > -----Original Message----- > From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx > [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of sundaju > Sent: Tuesday, January 20, 2009 8:13 AM > To: xen-users@xxxxxxxxxxxxxxxxxxx > Subject: [Xen-users] Adding disk image file to existing DomU VM > > > How can we add a new disk image file to an existing DomU virtual machine > which is already configured and running? > > We already have the VM running with 20GB partition mapped to a disk image > file. > > We have created a new disk image file of 150GB size and we want this file > to > be available as another file system on the DomU host. > > Please advise. > > Sundar > -- > View this message in context: > http://www.nabble.com/Adding-disk-image-file-to-existing-DomU-VM-tp2156381 > 4p21563814.html > Sent from the Xen - User mailing list archive at Nabble.com. > > > _______________________________________________ > Xen-users mailing list > Xen-users@xxxxxxxxxxxxxxxxxxx > http://lists.xensource.com/xen-users > > _______________________________________________ > Xen-users mailing list > Xen-users@xxxxxxxxxxxxxxxxxxx > http://lists.xensource.com/xen-users > > -- View this message in context: http://www.nabble.com/Adding-disk-image-file-to-existing-DomU-VM-tp21563814p21866458.html Sent from the Xen - User mailing list archive at Nabble.com. _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users

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