Hello, All!
File-based backup in OpenVZ 6:
https://openvz.org/Ploop/Backup#File-based_backup
File-based backup in OpenVZ 7:
not possible at all, it is broken now.
how to reproduce:
using prlctl
============
"prlctl snapshot-mount" and "prlctl snapshot-umount" not implemented,
file-based backup in OpenVZ 7 using only prlctl is not possible now.
using ploop
===========
# prlctl create test1 --vmtype ct
# prlctl start test1
# prlctl snapshot test1
Creating the snapshot...
The snapshot with id {fa2ea866-ee08-45eb-9cf4-d5a629fc21d6} has been
successfully created.
# man ploop
A snapshot can be mounted using ploop mount -u uuid command, see above.
# ploop mount -r -m /mnt -u {fa2ea866-ee08-45eb-9cf4-d5a629fc21d6}
/vz/private/3df6f5a8-d36d-4a77-83d9-532545fe8566/root.hdd/DiskDescriptor.xml
Error in ploop_mount_image (ploop.c:2368): Image
/vz/private/3df6f5a8-d36d-4a77-83d9-532545fe8566/root.hdd/root.hds
already used by device /dev/ploop34699
"ploop mount" failed with error.
using vzctl
===========
# prlctl create test2 --vmtype ct
# prlctl start test2
# prlctl snapshot test2
Creating the snapshot...
The snapshot with id {6d71a540-e419-4687-b436-0abd5ca27eba} has been
successfully created.
# vzctl snapshot-mount test2 --id {6d71a540-e419-4687-b436-0abd5ca27eba}
--target /mnt
# vzctl snapshot-umount test2 --id {6d71a540-e419-4687-b436-0abd5ca27eba}
Umount snapshot {6d71a540-e419-4687-b436-0abd5ca27eba}
Error in ploop_umount_image (ploop.c:2503): Image
/vz/private/857d88d0-21e6-4a8a-9e03-878fdfa9034e/root.hdd/root.hds is
not mounted
"vzctl snapshot-umount" failed with error.
resume:
=======
File-based backup in OpenVZ 7 is not possible now.
OpenVZ 7 is broken, and not production-ready right now.
production use OS without backups is not possible.
question
========
it is possible to fix these bugs with file-based backups?
or fixing bugs in OpenVZ 7 is not possible, and if I need
file-based backups - I should only use production-ready OpenVZ 6 ?
OpenVZ developers, can you please answer ?
--
Best regards,
Gena
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