Tech Target: Mavis Tire goes SANLess with SIOS DataKeeper

With DBAs rewarded for server performance and SAN specialists rewarded for server capacity, there can be a tug of war. Mavis Tire goes SANLess with SIOS DataKeeper. SIOS Technology releases a survey about high availability and SAN.

An IT department can become a battleground when different job functions are given competing goals. Performance and capacity are a set of competing goals that turn up again and again. These goals can pit SQL Server database administrators (DBAs) against storage area network (SAN) specialists. When pressure comes down from management and both start to scramble, they find they’ve been asked to achieve incompatible goals.

“SAN guys are measured by how much they can say they’ve saved with storage space,” said Geoff Hiten, principal SQL Server consultant for management and consulting firm Intellinet Corp. With SQL Server databases, space is money, and so the incentive is strong to push SAN specialists to optimize for greater capacity. According to Hiten, this means SAN specialists have to “micro-optimize for their areas.” That micro-optimization can reduce overall database performance.

In contrast, DBAs are judged based on the performance they can get out of a server. Since the DBA manages the server in its entirety, having the server optimized for something other than performance or a balance of performance and capacity becomes their responsibility. This leads to contention between the SAN specialist, who has been given the incentive to favor capacity over performance, while the DBA needs performance before capacity to do his job. But favoring capacity at the expense of performance becomes a problem for everyone, not just the DBA, when it slows down the server.

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