Although modern journaling filesystems are quite resilient, they will, on occasion, suffer an error in the underlying infrastructure. The reasons are many and include power fluctuations, hardware failures, and certain types of kernel failures. While the last is extremely rare in Debian stable releases, it does happen, especially ifthirdparty kernel modules that are not part of Debian are installed or ifthe kernel has been modified locally for some reason.
If you need dedicated infrastructure for maintaining Debian OS partitions, consider a UK Dedicated Server for greater control over disk partitioning, storage management, filesystem configuration, server administration, and Debian-based workloads.
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