Virtual Log File – Video
Virtual Log Files (VLFs) in SQL Server are smaller, manageable segments of the physical transaction log file used to track database changes for recovery and consistency. When a transaction log grows, SQL Server divides it into VLFs to simplify log management, with each VLF handling a portion of the log records. The number and size of VLFs depend on the log file’s initial size and growth increments, and having too many or too few can impact performance—excessive VLFs cause fragmentation, …