Netbackup Master and Media Servers running Windows 2008r2, version 7604 (one media server running 7504), to DataDomain
Hi all,
I have a very large Netapp file share (its our primary fileshare, which also contains all of our user's home directories, etc), and it is imperitive that this gets backed up. The full backup is 13TB, containing approximately 20 million files, and its been a thorn for quite a while, and just getting worse as it grows. My current method for backing this up is NDMP, as that used to allow a backup within an acceptible window. But, NDMP has proven to be very inconsistent lately, ranging from about 20mb/s to 80mb/s. The last incremental backup of this data was 2.7tb and took 58 hours to complete! People make heavy changes to this data daily, and I've been bitten because the backup has been running while folks have changed things, so no restore is available.
I am able to also use Accelerator, by pointing the backup to a cif, and running ms-windows policy type on it. But, Accelerator doesnt seem to do much good. The job details do indicate that it is enabled, but it cannot use change jounal for this (unsupported for non-local volumes). The benefit of this method is that I can break the job into multiple streams, create an individual policy for each data set, etc, but each one runs so slowly, it negates any benefit.
I'm not wanting to revert back to adding a Synthetic schedule into the mix, but I'm willing to try it.
Are any of you dealing with such issues, and can tell me what works best for you? Not that it will be best for our environment (details of which I'll gradly provide), but I've tried multiple things, tuning paramenters, etc, and may need a new direction here.
Thank you!
Todd
