Home Data Center Untold Secrets about File System Defragmentation in Software-Defined Storage Environments

Untold Secrets about File System Defragmentation in Software-Defined Storage Environments

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Untold Secrets about File System Defragmentation in Software-Defined Storage Environments
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“There is no Spoon” – Neo, The Matrix

So what is file system defragmentation, in software-defined storage (SDS) environments?The idea of file system defragmentation is to lay out data in sequential order for faster access when searching in files. This works well with a piece of spinning rust (hard-disk drive) on its own, because the data is written into sectors and each sector has a “home address” on the drive. Those addresses are static and locate the data in 3 dimensions; cylinder, head, sector Data access latency is introduced by adjusting the disk head to the correct position to access the sector when it “flies by”.

RAID-level virtualization translates the addresses already into a virtual address scheme no longer matching the physical layout of a drive and so defragmentation is almost useless. It can slightly improve large writes by increasing the probability of “full strokes” for lower read-modify-write occurrences, therefore making less write penalty times.

Read the entire article here, Untold Secrets about File System Defragmentation in Software-Defined Storage Environments

Via the fine folks at DataCore Software.

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DataCore DataCore is the authority on real-time data. The company pioneered software-defined storage and is now bringing its technology to hyperconverged and workload optimization. DataCore empowers IT organizations to achieve always-available, high-performance and highly efficient data. Its patented technology eliminates storage bottlenecks with adaptive parallel I/O optimization, enables zero-downtime synchronous mirroring, and provides a true hardware-agnostic architecture — resulting in flexibility, resource efficiencies, and cost savings. DataCore software is the cornerstone of the next-generation, software-defined data center. DataCore’s value has been proven in more than 10,000 customer deployments across traditional, hyper-converged, cloud, and hybrid environments.

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