We are looking to do this down the road, but no experience yet. - What kind of NDMP backups were you trying to do, and what problems did you run into? - Are you concerned about how long it would take to do a file-level restore for such a large server? - Do you keep internal snaps in the NetApp for user restores?
..Paul At 02:18 PM 6/11/2009, you wrote:
Has anyone put this into production use yet? Our initial testing is very positive. Currently we have to keep all user files for 7 years. I have 2 NetApp filer clusters with about 35 million files in 130 CIFS shares. NDMP backup is unworkable. It takes slightly over 24 hours to perform one complete backup from 6 Windows backup clients noodling through all of these files and sending about 200GB of changed data to 2 AIX TSM servers (currently we have about 300TB of data on tape). The data transfer is not the slow part - the search through the files is what takes most of the time. We have done quite a bit of testing with -snapdiff and discovered a few differences in how files are processed but nothing so far that will keep us from putting this feature into production soon. I am expecting to dramatically reduce my backup time while maintaining or improving service levels and expectations. I would appreciate anyone's input with their experience with this feature. For those who would like to know, these filers are mirrored to a remote site. TSM is a secondary recovery mechanism - I don't expect to recover an entire filer with TSM, but could....with a couple of weeks spare time :) Thank you, Neil Strand Storage Engineer - Legg Mason Baltimore, MD. (410) 580-7491 Whatever you can do or believe you can, begin it. Boldness has genius, power and magic. IMPORTANT: E-mail sent through the Internet is not secure. Legg Mason therefore recommends that you do not send any confidential or sensitive information to us via electronic mail, including social security numbers, account numbers, or personal identification numbers. Delivery, and or timely delivery of Internet mail is not guaranteed. Legg Mason therefore recommends that you do not send time sensitive or action-oriented messages to us via electronic mail. This message is intended for the addressee only and may contain privileged or confidential information. Unless you are the intended recipient, you may not use, copy or disclose to anyone any information contained in this message. If you have received this message in error, please notify the author by replying to this message and then kindly delete the message. Thank you.
-- Paul Zarnowski Ph: 607-255-4757 Manager, Storage Services Fx: 607-255-8521 719 Rhodes Hall, Ithaca, NY 14853-3801 Em: p...@cornell.edu
