ha crs: improve introduction and add screenshot of option

[pve-docs.git] / pvesm.adoc

diff --git a/pvesm.adoc b/pvesm.adoc
index ee7f598a86875a9e9361dbf3b32d97054865e704..6ade1a4c86fb0a6d28dc4f1a15f89eba4b7aba28 100644 (file)
--- a/pvesm.adoc
+++ b/pvesm.adoc
@@ -70,9 +70,10 @@ data to different nodes.
 |Description    |PVE type    |Level |Shared|Snapshots|Stable
 |ZFS (local)    |zfspool     |file  |no    |yes      |yes
 |Directory      |dir         |file  |no    |no^1^    |yes
+|BTRFS          |btrfs       |file  |no    |yes      |technology preview
 |NFS            |nfs         |file  |yes   |no^1^    |yes
 |CIFS           |cifs        |file  |yes   |no^1^    |yes
-|Proxmox Backup |pbs         |both  |yes   |n/a      |beta
+|Proxmox Backup |pbs         |both  |yes   |n/a      |yes
 |GlusterFS      |glusterfs   |file  |yes   |no^1^    |yes
 |CephFS         |cephfs      |file  |yes   |yes      |yes
 |LVM            |lvm         |block |no^2^ |no       |yes
@@ -92,7 +93,7 @@ That way you get a `shared` LVM storage.
 Thin Provisioning
 ~~~~~~~~~~~~~~~~~
 
-A number of storages, and the Qemu image format `qcow2`, support 'thin
+A number of storages, and the QEMU image format `qcow2`, support 'thin
 provisioning'.  With thin provisioning activated, only the blocks that
 the guest system actually use will be written to the storage.
 
@@ -194,7 +195,7 @@ this property to select what this storage is used for.
 
 images:::
 
-KVM-Qemu VM images.
+QEMU/KVM VM images.
 
 rootdir:::
 
@@ -226,12 +227,24 @@ You can use this flag to disable the storage completely.
 
 maxfiles::
 
-Maximum number of backup files per VM. Use `0` for unlimited.
+Deprecated, please use `prune-backups` instead. Maximum number of backup files
+per VM. Use `0` for unlimited.
+
+prune-backups::
+
+Retention options for backups. For details, see
+xref:vzdump_retention[Backup Retention].
 
 format::
 
 Default image format (`raw|qcow2|vmdk`)
 
+preallocation::
+
+Preallocation mode (`off|metadata|falloc|full`) for `raw` and `qcow2` images on
+file-based storages. The default is `metadata`, which is treated like `off` for
+`raw` images. When using network storages in combination with large `qcow2`
+images, using `off` can help to avoid timeouts.
 
 WARNING: It is not advisable to use the same storage pool on different
 {pve} clusters. Some storage operation need exclusive access to the
@@ -427,6 +440,9 @@ include::pve-storage-rbd.adoc[]
 
 include::pve-storage-cephfs.adoc[]
 
+include::pve-storage-btrfs.adoc[]
+
+include::pve-storage-zfs.adoc[]
 
 
 ifdef::manvolnum[]