JSCalc

That’s the kind of question you think you could answer easily… Until you get down to trying it: How many GB is my pile of … Read More

You’ll see deduplication ratios of twenty-to-one or even fifty-to-one mentioned in storage team discussions. Those numbers sound great on a datasheet, but a ratio doesn’t … Read More

Having a plan but failing to follow through is even worse than not planning at all. You end up with half-finished data and a bad … Read More

How big should my backup repo be? You need to answer that question when you do any kind of data protection. Most of us get … Read More

For the infrastructure owner, this storage growth projection calculator is answering a very clear question. How many months before you run out of storage? How … Read More

Suppose you buy a one-terabyte drive. Format it. Your operating system says something less than that. Some portion of that discrepancy is because your OS … Read More

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