rtis Preston
Backup Blog @ www.backupcentral.com
VP Data Protection, GlassHouse Technologies
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Ed Wilts
Sent: Wednesday, April 30, 2008 4:12 PM
To: Mike Sparkes
Cc: veritas-bu@mailman.eng.auburn.edu
Subject: Re: [Ve
ke Sparkes
Cc: veritas-bu@mailman.eng.auburn.edu
Subject: Re: [Veritas-bu] Multiplexing on VTLs
On Wed, Apr 30, 2008 at 6:36 PM, Mike Sparkes <[EMAIL PROTECTED]>
wrote:
Multiplexing mixes streams of data from multiple sources into
one stream to the storage device. A de-duplication product
---
>
> *From:* Ed Wilts [mailto:[EMAIL PROTECTED]
> *Sent:* Wednesday, April 30, 2008 4:12 PM
> *To:* Mike Sparkes
> *Cc:* veritas-bu@mailman.eng.auburn.edu
> *Subject:* Re: [Veritas-bu] Multiplexing on VTLs
>
>
>
> On Wed, Apr 30, 2008 at 5:58
On Wed, Apr 30, 2008 at 5:58 PM, Mike Sparkes <[EMAIL PROTECTED]>
wrote:
> if you ever move
> to de-duplication, the act of multiplexing your backups ruins the
> ability to detect duplicate blocks. Your de-dupe ratio will be terrible.
I don't follow your logic here. Why would multiplexing affec
Your logic is correct. If your licensing allows many Virtual Tape Drives
then create them and run many parallel backup jobs. Even in a virtual
environment this will make your restores quicker. Also, if you ever move
to de-duplication, the act of multiplexing your backups ruins the
ability to detect
