@Harry-Lui said in What do you use for petabyte storage?:
A company is wanted 3 years of footage of NVR and I calculated they needed about 1.5PB of storage.
I see Dell EMC has a Isilon Scale-Out NAS Storage line that looks nice.
What devices do you use?
1.5 PB per 3 year, is 500 TB/year, 1370 GB/day, 57 GB/h which is 16 MB/sec.
Dell EMC has the ML3 tape library which fits 40x12 TB raw data per 3U and can be expanded to hold roughly 3 PB.
I would be inclined to use disk storage for say 30 days (~40TB) and then archive to tape.
I think a tape library is a must. Just keeping track of the tapes manually is too much of a hassle. The tape library also identifies the tapes by their unique bar codes when you insert them. The tapes sits in a magazine so if you have a few spare magazines you can remove them and put them in storage if you want to archive them longer.
With the data rate above you will fill up one magazine (20 tapes) on a single ML3 in half a year.
https://www.dell.com/en-us/work/shop/dell-emc-data-storage-and-backup/dell-emc-ml3-ml3e/spd/ml3-tape-library/