From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tomasz Chmielewski <mangoo@wpkg.org>
Subject: Re: why a bitmap file never changes?
Date: Wed, 29 Aug 2007 11:06:34 +0200
Message-ID: <46D5371A.6020001@wpkg.org>
References: <46D53228.4000400@wpkg.org>
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-2; format=flowed
Content-Transfer-Encoding: 7bit
Return-path: <linux-raid-owner@vger.kernel.org>
In-Reply-To: <46D53228.4000400@wpkg.org>
Sender: linux-raid-owner@vger.kernel.org
To: Linux-Raid <linux-raid@vger.kernel.org>
List-Id: linux-raid.ids

Tomasz Chmielewski schrieb:

> The date of the file is the date of creation of this array, and as I 
> look inside, it's basically almost empty. When looking in a hex editor, 
> zeroes (+bitm etc.)at the beginning, and than FF to the end.
> 
> 
> Is it normal?

Here is some more info about the bitmap itself - it's 100% dirty, what 
does it mean?

# mdadm -X /root/backup-bitmap
         Filename : /root/backup-bitmap
            Magic : 6d746962
          Version : 4
             UUID : 00000000.00000000.00000000.00000000
           Events : 0
   Events Cleared : 0
            State : OK
        Chunksize : 1 MB
           Daemon : 5s flush period
       Write Mode : Allow write behind, max 256
        Sync Size : 658800640 (628.28 GiB 674.61 GB)
           Bitmap : 643360 bits (chunks), 643360 dirty (100.0%)


-- 
Tomasz Chmielewski
http://wpkg.org