How it works...
The first part of our process is to decide whether or not we actually need a SAN at all. If the database will remain relatively small, capable of residing easily on local hard drives for several years, we don't need a SAN just yet.
While it might seem arbitrary, setting 3 TB as a cutoff for local storage comes with a few justifications. First, consider the local drives. Even if they were capable of saturating a 6 Gb/s disk controller, 3 TB would require over an hour to transfer to another local storage device. If that weren't a bottleneck, there is still the network. With a 10 Gb/s NIC and assuming no overhead, that's 40 minutes of transfer at full speed.
That directly affects the speed of backups, synchronization, emergency ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access