Move Multiqueue and IO Threads description at bottom of each chapter

[pve-docs.git] / vzdump.adoc

diff --git a/vzdump.adoc b/vzdump.adoc
index 5440ae873df1a4c382f4971c8f6d942a1cbba69e..2939cbed8936d83303dedfb0b0eb4e16f8e35658 100644 (file)
--- a/vzdump.adoc
+++ b/vzdump.adoc
@@ -84,8 +84,17 @@ using ACLs in suspend mode if the backup storage is an NFS server.
 `snapshot` mode::
 
 This mode uses the snapshotting facilities of the underlying
-storage. A snapshot will be made of the container volume, and the
-snapshot content will be archived in a tar file.
+storage. First, the container will be suspended to ensure data consistency.
+A temporary snapshot of the container's volumes will be made and the
+snapshot content will be archived in a tar file. Finally, the temporary
+snapshot is deleted again.
+
+NOTE: `snapshot` mode requires that all backed up volumes are on a storage that
+supports snapshots. Using the `backup=no` mountpoint option individual volumes
+can be excluded from the backup (and thus this requirement).
+
+NOTE: bind and device mountpoints are skipped during backup operations, like
+volume mountpoints with the backup option disabled.
 
 
 Backup File Names
@@ -155,7 +164,6 @@ NOTE: this option is only available for container backups.
 'vzdump' skips the following files by default (disable with the option
 `--stdexcludes 0`)
 
- /var/log/?*
  /tmp/?*
  /var/tmp/?*
  /var/run/?*pid
@@ -186,7 +194,7 @@ Backup all guest systems and send notification mails to root and admin.
 
  # vzdump --all --mode suspend --mailto root --mailto admin
 
-Use snapshot mode (no downtime).
+Use snapshot mode (no downtime) and non-default dump directory.
 
  # vzdump 777 --dumpdir /mnt/backup --mode snapshot