xfs
[Top] [All Lists]

Re: best way to duplicate hard drive for backup

To: "prad@xxxxxxxxxxxxxxxxxx" <prad@xxxxxxxxxxxxxxxxxx>
Subject: Re: best way to duplicate hard drive for backup
From: "Assarsson, Emil" <Emil.Assarsson@xxxxxxxxxxxxxxxx>
Date: Mon, 17 Oct 2011 10:12:33 +0200
Accept-language: en-US, sv-SE
Acceptlanguage: en-US, sv-SE
Cc: "linux-xfs@xxxxxxxxxxx" <linux-xfs@xxxxxxxxxxx>
In-reply-to: <871uuciiud.fsf@xxxxxxxxxxx>
References: <871uuciiud.fsf@xxxxxxxxxxx>
Thread-index: AcyMpIXlyC+z3ryAQz2iYDvnfCunPQ==
Thread-topic: best way to duplicate hard drive for backup
sön 2011-10-16 klockan 17:04 -0700 skrev prad:
> 1. is my plan an intelligent one?
> 2. if so, what is the most sensible way of duplicating the first hd?
> a) dd?
> b) install from scratch and then overwrite with xfs dumps from
> external?
> c) something else entirely?
> 
a) "dd" requires that the filesystem is offline. It duplicates
everything on the disk, even all the random stuff on the disk that
aren't files.
b) If you have a proper backup schedule this will allow to restore a
older system if something broke a few days ago. Please note
that /etc/fstab often contains references to the UUID of the file
system. You also need to make sure that the bootloader is updated.
c) You can have a working and tested standby and then restore from
xfsdump when you need to. You can set "no backup" file system attribute
on files and directories that isn't needed to backup.

--
Emil
<Prev in Thread] Current Thread [Next in Thread>