Duplicate Backup Sets between Deduplication Storage using client-side deduplication
I'm currently Trialing BE 2010 R3 and in My scenario I have two sites that both have a Media Server with Deduplication storage attached and I'm in a CASO environment with the CASO server in Site A and the Managed Media Server in Site B.
I've created a backup job to backup a server that is around 23GB to the deduplication storage on the CASO Server in Site A and also created a Duplicate Set job (configured to run after job) to duplicate that backup set to the deduplication storage on the managed media server in site B.
In the Duplicate Job settings I selected the 'Use client-side deduplication' as I wanted to reduce the amount of data being transferred across the remote link on a nightly basis.
the initial job ran fine and took 30 minutes to backup locally (1GB Network connection) and then a further 1hour 30minutes (100MB WAN Link simulated with Firewall) to duplicate that job to the Media Sever in Site B.
I ran the job a second time and again it took the same amount of time to backup to the local media server's deduplication storage (because I'm using media server deduplication) and we had a nice healthy deduplication rate of 33.0:1, however the duplicate job still took 1 hour and 30 minutes and from what I could see it was again copying the full 23Gb across the WAN link. When the job finished It did show a nice healthy deduplication rate of 33.0:1 on the managed media Server but what I'm trying to do is reduce the amount of data the duplicate set job sends across the link.
I went back into review settings on the duplicate job and noticed that the job settings had reverted to the 'Use media server deduplication' option that would explain why it took so long to duplicate the second backup job as in that situation, the deduplication would be done on the Media server in Site B. I tried changing this settings back to 'use client side deduplication' and submitted the job but everytime i reviewed the settings, they had reverted back.
Either it's not a supported option and the system isn't telling me that when I select it or I'm doing something else wrong. I reviewed various options and shared all the deduplication folders between servers etc.. but cannot figure it out.
I know I can target backups to send direct to the remote Media Server using 'client-side deduplication' but I thought this would be a far better way of doing things so I could backup a server once to local storage and then duplicate that local job across the WAN for DR purposes and duplicate locally to Tape for Archival purposes.
Can anyone advise whether what I'm trying to do will work?