This is an automated email from the ASF dual-hosted git repository.
dahn pushed a commit to branch main
in repository https://gitbox.apache.org/repos/asf/cloudstack-documentation.git
The following commit(s) were added to refs/heads/main by this push:
new 2e69e28 snapshot: copy, multi-zone replica (#344)
2e69e28 is described below
commit 2e69e2847a2ff12e9f475789994c2c0c047925fa
Author: Abhishek Kumar <[email protected]>
AuthorDate: Tue Oct 24 14:15:33 2023 +0530
snapshot: copy, multi-zone replica (#344)
Signed-off-by: Abhishek Kumar <[email protected]>
Co-authored-by: Harikrishna <[email protected]>
Co-authored-by: dahn <[email protected]>
---
source/adminguide/storage.rst | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/source/adminguide/storage.rst b/source/adminguide/storage.rst
index 14dba38..21bb3bb 100644
--- a/source/adminguide/storage.rst
+++ b/source/adminguide/storage.rst
@@ -827,6 +827,11 @@ to a VM.
A completed snapshot is copied from primary storage to secondary
storage, where it is stored until deleted or purged by newer snapshot.
+Users can also select the desired zones at the time of taking manual snapshots
+or while creating a snapshot policy. When additional zone(s) are selected and
+snapshot backup is allowed, the snapshot will be first copied to the secondary
+storage of the native zone and then copied to the additional zone(s) from
there.
+
How to Snapshot a Volume
~~~~~~~~~~~~~~~~~~~~~~~~
@@ -922,6 +927,20 @@ recovered as needed. Alternatively, a template may be
created from the
snapshot of a root disk. The user can then boot a VM from this template
to effect recovery of the root disk.
+Some hypervisor and storage combinations also allow for Instances and volumes
+to be reverted from snapshots. In such cases the **Revert to snapshot** action
for
+a snapshot in the UI or the `revertSnapshot` API can be used to restore the
volume
+to a particular snapshot. It should be noted that, when supported by the
combination
+of hypervisor and storage, the snapshot must be available in the zone in which
volume
+to be restored is present.
+
+.. note::
+ When creating a volume from a snapshot of a DATA disk, it should be noted
that
+ the volume's disk offering must be accessible in the target zone. In case
the disk
+ offering is using storage tags then such tagged storage resources must be
available
+ in the target zone.
+
+
Snapshot Job Throttling
~~~~~~~~~~~~~~~~~~~~~~~
@@ -953,6 +972,17 @@ a snapshot request will wait in the queue. If this limit
is reached, the
snapshot request fails and returns an error message.
+Snapshot Copy
+~~~~~~~~~~~~~
+
+CloudStack allows copying an exisiting backed-up snapshot to multiple zones.
+Users can either use the UI in the snapshot details view or the `copySnapshot`
+API to copy a snapshot from one zone to other zone(s). Snapshot copies can
+be used for disastser recovery and creating volumes and templates in the
+specific zone. Later if not needed, these copies or replicas can be
individually
+deleted without affecting other replicas.
+
+
VMware Volume Snapshot Performance
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
