With managed RAID arrays, you just define LUNs that get mapped to a connected host (whether they are connected via SCSI/iSCSI/SAS or FC).
These generally come up as SCSI disk devices that are, for all intents and purposes, normal disks (the RAID/multipath driver takes care of the usable disk device)
So the pre-existing volumes are mapped to the host (we can also create new volumes from free space in the RAID-set) then you can format/mount them as normal volumes, within the host.
You generally can't go and identify serial/types of the individual disks (from the host) as the array normally virtualizes the LUNs across many disks, but the array does give a unique SCSI array and volume identifier.
I have 29TB of Raw disk I'm scrubbing now (using a trial of a commercial program). I've re-created it with RAID10-sets and 2TB LUNs so it processing 1/2 the addressable space to scrub with decent overall performance. It's running for 4 days, using 2 Windows servers and I'm just over 1/2 way through
Most business are getting paranoid about removing old arrays intact, as they sometimes get on eBay, so they are requiring them to be scrubbed with a reasonably decent scheme and artifacts (which will be a profile dump of the Array and reports from the data scrub software) of completion.
In the past I've happily run this with DBAN (and saved reports), but because it doesn't sometimes pick up the disk adapter I need to run it within an OS.