Product update: Virtuozzo 7.0 Update 12 (7.0.12-328)¶
Issue date: 2019-12-03
Applies to: Virtuozzo 7.0
Virtuozzo Advisory ID: VZA-2019-091
The Update 12 for Virtuozzo 7.0 provides new features as well as stability and usability bug fixes. It also introduces a new kernel 3.10.0-1062.4.2.vz7.116.6.
2. New Features¶
Backup via reversed delta. A VM with a write-intensive workload may write to its snapshot blocks faster than they are backed up, so writing is slowed down to the backup speed. To avoid this, you can set a local directory to store intermediate temporary VM images during backup. So when a VM changes its snapshot blocks that have not been yet backed up, a copy of them is created in this directory and the original can be rewritten without delay. Once the backup is complete, the temporary VM image is deleted.
Support for CentOS 8 in containers and virtual machines.
3. Bug Fixes¶
Unable to restore LUKS partition from backup if source image format is not specified. (PSBM-96303)
A container with an NFS mount and ‘x-systemd-automount’ specified in fstab options could cause the node to hang if NFS server was inaccessible. (PSBM-98297)
Periodical interface restart when VLAN with a bonding interface was created in the installer. (PSBM-98165)
A container nfsd inside could crash the node during NFS-related operations. (PSBM-97738)
Writeback lockups could result in node hangs. (PSBM-97743)
Nodes running Virtuozzo Storage could overload and slow down significantly due to insufficient default pagecache limit. (PSBM-94761)
Other fixes. (PSBM-73447, PSBM-83783, PSBM-94761, PSBM-95177, PSBM-95734, PSBM-95805, PSBM-96057, PSBM-96133, PSBM-96225, PSBM-96262, PSBM-96286, PSBM-96287, PSBM-96390, PSBM-96615, PSBM-96764, PSBM-96892, PSBM-96901, PSBM-96978, PSBM-97012, PSBM-97024, PSBM-97048, PSBM-97085, PSBM-97105, PSBM-97246, PSBM-97319, PSBM-97542, PSBM-97729, PSBM-97730, PSBM-97891, PSBM-97899, PSBM-97905, PSBM-97932, PSBM-98075, PSBM-98311, PSBM-98456, PSBM-98742, PSBM-98796, PSBM-98834, PSBM-99107, PSBM-99133, PSBM-99557, PSBM-99561)