Likewise, if something was not write intensive, or not being updated, this could
be a good idea because it is a lower cost solution. But it still relies on the
primary storage being available because until we’ve moved all of that data to
our other area, if this failed, we’ve lost everything. We have to be careful
where we use snapshots.
We wouldn’t typically use this for write intensive applications and we wouldn’t
use it to protect us against primary storage failure. But it gives us a consistent
usable copy of data that we can use to take a backup or do some form of data
It’s low cost because we only replicate or copy changed data.