mirrors/qemu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

docs/block-replication: use blockdev-backup

Browse Source 
We are going to deprecate drive-backup, so don't mention it here.
Moreover, blockdev-backup seems more correct in the context.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2021-11-04 09:58:09 +01:00
parent 2b22e7540d
commit 9a599217a4
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
docs/block-replication.txt
View File

@ -79,7 +79,7 @@ Primary | || Secondary disk <--------- hidden-disk 5 <---------
|| | | || | |
|| | | || | |
|| '-------------------------' || '-------------------------'
|| drive-backup sync=none 6 || blockdev-backup sync=none 6
1) The disk on the primary is represented by a block device with two 1) The disk on the primary is represented by a block device with two
children, providing replication between a primary disk and the host that children, providing replication between a primary disk and the host that
@ -101,7 +101,7 @@ should support bdrv_make_empty() and backing file.
that is modified by the primary VM. It should also start as an empty disk, that is modified by the primary VM. It should also start as an empty disk,
and the driver supports bdrv_make_empty() and backing file. and the driver supports bdrv_make_empty() and backing file.
6) The drive-backup job (sync=none) is run to allow hidden-disk to buffer 6) The blockdev-backup job (sync=none) is run to allow hidden-disk to buffer
any state that would otherwise be lost by the speculative write-through any state that would otherwise be lost by the speculative write-through
of the NBD server into the secondary disk. So before block replication, of the NBD server into the secondary disk. So before block replication,
the primary disk and secondary disk should contain the same data. the primary disk and secondary disk should contain the same data.