JSCalc

When a drive fails in a RAID array, you’re fine… until it doesn’t. Then you start asking: Will my array remain operational? How long will … Read More

This leads us to RAID 10, which is an arrangement of storage that’s built on top of two more basic ideas: mirroring (a complete copy … Read More

If rebuild time is too long for single parity RAID arrays and data loss is not an option, then you will want to look at … Read More

RAID 5 is neither all redundant nor all useable, but it’s the best compromise. A RAID 5 setup use multiple drives (three or more) and … Read More

Raid 1 is a simple way to provide drive redundancy. It will mirror your data across disks. Each disk contain the same data. If any … Read More

Redundancy isn’t built-in. RAID 0 doesn’t do any mirror copies or parity calculations. It’s a pure speed/capacity play. Gamers who has massive game collections, video … Read More

The figure printed on the box is a little lie baked into every memory card, SSD and hard drive. That 1 TB drive isn’t really … Read More

How much space does a set of disks actualy have? That’s the initial question any builder has when thinking about building a disk pool (a … Read More

Every network administrator asks themselves this question sometime: How big a pool should I set? And if there’s a busy hour in my day, will … Read More

Over time, routing tables fills with extra routes. Whenever you bring up a new subnet, all the routers along the way has to check, advertise, … Read More