06-17-2016 10:09 PM
I'm trying to find out what is using up all of the space on my 2 netbackup appliances. One master/media the other just a media server.
I've run nbdeployutil on the master server and the resulting report says capacity totals "97.47TB" which is pretty much right at how much data is stored on one appliance. However I have 2 appliances that should each have about 97ish TB of unique data on them.
I'm not sure if my setup is configured wrong or if the nbdeployutil just cant see into more than just the master server's media.
Both of my 2 appliances have about 120TB of space and are around 85% full each.
Any help would be most appreciated.
06-17-2016 10:31 PM
06-18-2016 04:44 AM
06-23-2016 09:49 AM
This is one of the major challenges when using dedup disk storage, and as far as I know there's no easy answer. I mostly deal with OST storage servers but have some experience with MSDP ones; the theory is very much the same.
If I understand your problem correctly, you're trying to figure who are the worst offenders that consume your usable capacity of the storage servers. Once you know that, you'll either improve their consumption somehow or find an alternate backup solution for them; or at least have some justification for purchasing more storage.
The first few thoughts right off the bat are:
Your last comment - "find out how many unique data units are assigned to an individual client" - the last time I checked there weren't any tools to find out how many blocks on disk were only referenced by a single client or backup set. We've had problems when an appliance was getting full and the business owner wanted us to tell them which clients should be removed and expunged from backup to free up enough disk space to handle the remaining clients. We spent many weeks with our veritas account and support teams, thought we had found some, expunged many backups with some risk to data protection, and barely made a dent in our usage. In the end the business conceded and picked up another appliance but at least we made a concerted effort.
I'm curious to know how this plays out for you, what your general findings are.