Huh? "if data is in the cumulative backup image" sounds exactly like what I said - you can restore any data in the incremental (including a cumulativeincremental) whether it is NDMP or not. My point was you can NOT restore data from the full that preceded it after that full has expired (without doing a reimport).
The fact that you posted makes it sound like you're implying that with NDMP one can restore data from the full even if it has expired so long as the subsequent cumulative is still there. Is that the case? Have you tested this? If so are you saying one can do the restore using normal NetBackup restore methods or are you saying that the image hasn't actually been deleted from NDMP so you can reimport it? If the latter then that is the same as you can do from tape so long as you haven't reused the tape since its images expired. From: nbu ser [mailto:nbu...@live.com] Sent: Friday, October 19, 2012 8:53 AM To: Lightner, Jeff; firstname.lastname@example.org Subject: RE: [Veritas-bu] Incremental backup question In case of normal OS level backups Full backup is required to go with a cumulative backup. But in case of NDMP even if Full backup has expired, we can still restore data from a cumulative backup if data is in the cumulative backup image. ________________________________ From: jlight...@water.com<mailto:jlight...@water.com> To: email@example.com<mailto:firstname.lastname@example.org> Date: Tue, 16 Oct 2012 15:27:29 +0000 Subject: Re: [Veritas-bu] Incremental backup question The incremental will have any files it backed up still on it and those can be restored. However unless most of your files change on a daily basis you're not likely to have most of the files in the incremental. That is to say that a full OR an incremental CAN be restored without respect to the other backups but the INTENT is that the full be restored first then the subsequent incrementals (or a single cumulativeincremental) since that full should be restored on top of it to get the changes since the full. If the full expired but the media it was written on has not been reused you can re-import the full and then restore it. The re-import will change the expiration date relative to the date of import rather than the date of backup. From: veritas-bu-boun...@mailman.eng.auburn.edu<mailto:veritas-bu-boun...@mailman.eng.auburn.edu> [mailto:veritas-bu-boun...@mailman.eng.auburn.edu]<mailto:[mailto:veritas-bu-boun...@mailman.eng.auburn.edu]> On Behalf Of Whelan, Patrick Sent: Tuesday, October 16, 2012 9:57 AM To: email@example.com<mailto:firstname.lastname@example.org> Subject: [Veritas-bu] Incremental backup question Hi All, I suppose the answer is obvious, but I'm having trouble getting my head around it. What happens to an incremental backup whose dependent full has expired. For example A full backup is run and expires in 90 days. 89 Days later an cumulative incremental is run and expires in 30 days. Two days later the Full expires. Is the incremental still useful? If so, to what extent. 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