LUN masking

LUN masking is a data storage technique used in computer networks to control which servers can access specific storage resources, known as LUNs (Logical Unit Numbers). Think of it as a security system for storage devices: it ensures that only authorized servers can see or use certain data. This helps to protect sensitive information, optimize performance, and manage resources effectively within a shared storage environment. By restricting access, LUN masking ensures that only the right servers have the right permissions, maintaining both data integrity and security.