Typically, a RAID array will appear to the operating system as a single disk. JBOD is an alternative to using a RAID configuration. Rather than configuring a storage array to use a RAID level, the disks within the array are either spanned or treated as independent disks.
Evernote is a cross-platform, freemium app designed for note taking, organizing, and archiving. It is developed by the Evernote Corporation, a private company headquartered in Redwood City, California.
In the free version the searching takes place on the servers of evernote! The search does not scan all notes on the servers through your slow mobile-connection. So only the single note that you search and open is transferred (and some metadata).