Diskkeeper 156/12/2023 ![]() ![]() That’s a LOT of unnecessary IOPs.” They estimate that the overall loss in SAN performance due to SAN fragmentation is around 25 per cent.Ĭondusiv’s new release, Diskeeper 15 Server, prevents fragmentation in real time at the logical disk layer, which increases IO density so more data can be processed in the same amount of time. If it sees, say 20 separate pieces at the logical disk layer, it will issue an input- output operation for every piece of the file. “A fragmented logical disk requires more IOPS than necessary to process any given file of workload. “The logical disk layer becomes fragmented whatever a SAN does at the physical disk layer,” Morin said. RAID controllers do not, however, prevent fragmentation at the logical software layer that Windows sees, with the result that SAN storage performance degrades over time. Morin said that SAN vendors – and many users – believe that RAID controllers fight file defragmentation by managing data at the physical disk layer. The problem is that once they hear fragmentation and Diskeeper they may yawn and tune out.” It’s a 10 minute conversation to get them to understand it’s a top down approach about IO reduction. “As soon as we mention fragmentation or Diskeeper, customers tend to think of an old bottom-up technology, an issue at the Windows File system. “It’s really an education challenge,” Morin said. Morin acknowledged that there is a real marketing challenge bringing Diskeeper to SANs. “On servers it had limited use for local and direct attached servers, but we have now expanded it to SAN storage.” “People that have used Diskeeper in the past used it mainly for laptops or desktops,” said Brian Morin, Condusiv’s SVP, Global Marketing. The company has a long history of fragmentation protection products, with over 45 million licenses sold, but in the SAN space, that legacy closes as many doors as it opens. Accordingly, the new version of their server fragmentation product has the first fragmentation protection for SAN storage connected to physical servers.Ĭondusiv is a 33 year old company – the twelfth oldest software company in the world – but until 2012 it was known as Diskeeper. Burbank CA-based Condusiv Technologies thinks that’s simply ignoring a problem, which conveniently also requires a customer to purchase more storage. Most SAN vendors think that SAN fragmentation isn’t an issue. Brian Morin, Condusiv’s SVP, Global Marketing ![]()
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