BackupPC-users

Re: [BackupPC-users] Copying BackupPC to tape for off-site storage - very slow

2010-03-02 15:06:52
Subject: Re: [BackupPC-users] Copying BackupPC to tape for off-site storage - very slow
From: Bowie Bailey <Bowie_Bailey AT BUC DOT com>
To: "General list for user discussion, questions and support" <backuppc-users AT lists.sourceforge DOT net>
Date: Tue, 02 Mar 2010 14:50:31 -0500
Sean Carolan wrote:
>> If you use a file-oriented approach, traversing the directories is very
>> slow, and the restore will be much worse as it tries to reconstruct the
>> hardlinks.  An image copy will be much faster, but keep in mind that you
>> have to load it all back from the tape before being able to access any
>> of it.  If your partition is 2TB or smaller it might be handier to image
>> to to an external or removable disk that you could access directly.
>>     
>
> We'll give this a shot.  Our "tape drive" is actually an HP d2d4112
> system, which creates a virtual tape changer and and tape drive.

What has worked for me (and some others on the list) is to use mirrored
drives.  I have a three-part raid 1 configuration with the third drive
being in a hot-swap enclosure.  Once a month, I take the removable
drive, send it offsite, and replace it with a new drive.  Having three
drives in the raid means that I am still protected from drive failures
while the third drive is syncing.

-- 
Bowie

------------------------------------------------------------------------------
Download Intel&#174; Parallel Studio Eval
Try the new software tools for yourself. Speed compiling, find bugs
proactively, and fine-tune applications for parallel performance.
See why Intel Parallel Studio got high marks during beta.
http://p.sf.net/sfu/intel-sw-dev
_______________________________________________
BackupPC-users mailing list
BackupPC-users AT lists.sourceforge DOT net
List:    https://lists.sourceforge.net/lists/listinfo/backuppc-users
Wiki:    http://backuppc.wiki.sourceforge.net
Project: http://backuppc.sourceforge.net/