I like SAN for the transport method. Here is why - There is no overhead on the ESX hosts. Where do you think that data comes from when you select NBD? It comes from the NICs on the ESX hosts. In addition, you're limited to 1TB for your virtual disk sizes.
Using the SAN transport method: Chose a windows media server as your backup host. Throw a couple HBAs in it, and mask all your ESX LUNs to it. Now, enable (if you have the license) DDboost, and you get the following scenario. Data transfers from the SAN through the media server (which is also your backup host), and out the NICs on the media server to the data domain. DDboost only sends the change blocks to the DataDomain. Now, you have one nice, efficient way to backup your VMs with no ESX host overhead. Plus, you're keeping all that backup traffic off your LAN (put the DataDomain traffic on it's on VLAN). You might find this useful: http://pubs.vmware.com/vsphere-50/index.jsp?topic=/com.vmware.vddk.pg.doc_50/vddkDataStruct.5.5.html Cheers. -- Jim Canon Sr. Data Protection Analyst Global Technology Services - AHS Mylan 781 Chestnut Ridge Road Morgantown, WV 26505 [email protected] Phone: 800.826.9526 ext. 6236 Direct: 304.554.6236 Fax: 304.285.6404 Mobile: 304.224.6815 From: "Anurag Sharma" <[email protected]> To: "veritas-bu" <[email protected]> Date: 01/30/2012 09:31 AM Subject: [Veritas-bu] NBU VStorage Backup on Datadomain Sent by: [email protected] Hi Team, We are going for Netbackup Vmware Backups to backup Virtual Machines. The target storage device is Data domain. If anyone has implemented the same with please share the best practices. Another doubt we have is this . The transport method should be SAN or NBD. The san method is useful if we were to use san connected tape libraries and data transfer would have happen over san. But in our case even if we zone all the datastore LUNS with automount disable and automount scrub its of no use and data from the media server to Datadomain always goes via LAN so why to use SAN method. Kindly give your inputs please .. Regards Anurag Sharma _______________________________________________ Veritas-bu maillist - [email protected] http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu ============================================================================== CONFIDENTIALITY NOTICE: This e-mail message and all attachments transmitted with it may contain legally privileged, proprietary and/or confidential information intended solely for the use of the addressee. If you are not the intended recipient, you are hereby notified that any review, dissemination, distribution, duplication or other use of this message and/or its attachments is strictly prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message and its attachments. Thank you. ============================================================================== _______________________________________________ Veritas-bu maillist - [email protected] http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
