From: Aaron Lauterer <a.lauterer@proxmox.com>
To: Proxmox VE development discussion <pve-devel@lists.proxmox.com>,
Christian Ebner <c.ebner@proxmox.com>
Subject: Re: [pve-devel] [PATCH v2 pve-docs] vzdump: add section describing PBS change detection mode
Date: Thu, 11 Jul 2024 10:24:35 +0200 [thread overview]
Message-ID: <d2519335-251c-43b1-ba26-cdda0b785c3b@proxmox.com> (raw)
In-Reply-To: <20240710144157.280353-1-c.ebner@proxmox.com>
could we have a short paragraph on where to set these options? Similar
to how it is done in the fleecing section?
a few very nitpicky comments inline:
On 2024-07-10 16:41, Christian Ebner wrote:
> Add a concise section about what PBS change detection mode is and
> what it affects, including a table with a description of the modes.
>
> Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
> ---
> vzdump.adoc | 24 ++++++++++++++++++++++++
> 1 file changed, 24 insertions(+)
>
> diff --git a/vzdump.adoc b/vzdump.adoc
> index 9b1cb61..4607e40 100644
> --- a/vzdump.adoc
> +++ b/vzdump.adoc
> @@ -175,6 +175,30 @@ fleecing image up-front. On a thinly provisioned storage, the fleecing image can
> grow to the same size as the original image only if the guest re-writes a whole
> disk while the backup is busy with another disk.
>
> +CT Change Detection Mode
> +~~~~~~~~~~~~~~~~~~~~~~~~
> +
> +Setting the change detection mode defines the encoding format for the pxar
> +archives and how changed and unchanged files are handled for container backups
s/how changed and unchanged/how changed, and unchanged/
comma before the and
> +with Proxmox Backup Server as target.
s/as target/as the target/
> +
> +Backups of VMs or to other storage backends are not affected by this setting.
> +
> +There are 3 change detection modes available:
> +
> +[width="100%",cols="<m,4d",options="header"]
> +|===============================================================================
> +| Mode | Description
> +| Default | Read and encode all files into a single archive, using the pxar
> +format version 1.
> +| Data | (EXPERIMENTAL): Read and encode all files, but split data and
> +metadata into separate streams, using the pxar format version 2.
> +| Metadata | (EXPERIMENTAL): Split streams and use archive format version 2 like
> +`Data`, but use metadata archive of previous snapshot (if one exists) to detect
s/use metadata/use the metadata/
s/of previous/of the previous/
> +unchanged files, and reuse their data chunks without reading file contents from
> +disk, whenever possible.
> +|===============================================================================
> +
> Backup File Names
> -----------------
>
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next prev parent reply other threads:[~2024-07-11 8:24 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-10 14:41 Christian Ebner
2024-07-11 8:24 ` Aaron Lauterer [this message]
2024-07-11 8:28 ` Christian Ebner
2024-07-11 9:38 ` Christian Ebner
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