linux-kernel - Re: [PATCH v3 03/11] documentation: Block Devices Snapshots Module

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Date:   Mon, 10 Apr 2023 12:01:03 +0700
From:   Bagas Sanjaya <bagasdotme@...il.com>
To:     Sergei Shtepa <sergei.shtepa@...am.com>, axboe@...nel.dk,
        hch@...radead.org, corbet@....net, snitzer@...nel.org
Cc:     viro@...iv.linux.org.uk, brauner@...nel.org, willy@...radead.org,
        kch@...dia.com, martin.petersen@...cle.com, vkoul@...nel.org,
        ming.lei@...hat.com, gregkh@...uxfoundation.org,
        linux-block@...r.kernel.org, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH v3 03/11] documentation: Block Devices Snapshots Module

On Tue, Apr 04, 2023 at 04:08:27PM +0200, Sergei Shtepa wrote:
> +The main properties that a backup tool should have are:
> +
> +- Simplicity and versatility of use
> +- Reliability
> +- Minimal consumption of system resources during backup
> +- Minimal time required for recovery or replication of the entire system
> +
> +Therefore, the features of the blksnap module are:
"Taking above properties into account, blksnap module features:"

> +The change tracker allows to determine which blocks were changed during the
> +time between the last snapshot created and any of the previous snapshots.
> +Having a map of changes, it is enough to copy only the changed blocks, and
"With a map of changes, ..."

> +3. ``blkfilter_ctl_blksnap_cbtdirty`` mark blocks as changed in the change
                                         marks

> +The blksnap [#userspace_tools]_ console tool allows to control the module
> +from the command line. The tool contains detailed built-in help. To get
> +the list of commands, enter the ``blksnap --help`` command. The ``blksnap
> +<command name> --help`` command allows to get detailed information about the
"To get list of commands with usage description, see ``blksnap --help``."

Thanks.

-- 
An old man doll... just what I always wanted! - Clara

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