I'm very new to Linux, being mainly a Windows 7 user, so I may not understand Linux-specific commands without explanation.
I've decided to build a NAS running some form of Linux (probably FreeBSD or even FreeNAS) with SnapRAID for redundancy.
I currently have about ten 1TB and 2TB external drives, which I intend to take out of their enclosures and mount as normal HDDs via SATA. Most of these drives contain a large amount of data.
My question is this: Is it possible to "combine" the drives such that they appear to the OS and all programs to be a single logical drive (of around 13-14TB) without deleting the data? I assume this would be completed with LVM, but before I go spending a lot of money on NAS hardware I want to make sure this will work.