Disk Elasticity and Storage Efficiency

Storage is elastic. How do I know you ask? Yesterday I visited a customer who is using the Storwize product to do Real-time Compression on their primary storage. The customer is Allianz and has been using the product for over a year. They see 75% compression on their users home directory data. To give you an idea, Allianz is an insurance company and generates TONS of spreadsheets, 14TB worth of spreadsheets (okay, not all 14TB… Read more »

How Much Backup Capacity Does Deduplication Really Save?

There is a lot of discussion around data deduplication for backup these days. (I wish I could deduplicate all the turkey I ate last week.) In fact, Gartner claims that “…by 2012, deduplication will be applied to 75% of backups.” And when asked “Why?” the response was “…deduplication is too compelling to ignore.” But I say “prove it”. So I put together some backup capacity numbers for storing data on tape (non-compressed and compressed) versus… Read more »

The Side Effects of Backup on Server Virtualization

Server virtualization has changed the IT landscape dramatically. It has become a magic potion curing a number of ills in the physical server world such as low individual CPU utilization and excess use of space, power and cooling in the data center. However, like all potions that cure what ails you, there can be side effects. You need to be careful of what the Witch Doctor orders.

When I speak with customers who have aggressively… Read more »