VMware vSphere ESXi cluster VMFS datastore foundations explained. скачать в хорошем качестве

VMware vSphere ESXi cluster VMFS datastore foundations explained.

VMFS (Virtual Machine File System) datastores are logical containers on block storage (like SAN/iSCSI LUNs) formatted with VMware's high-performance, clustered file system, designed specifically to store virtual machine files (VMDKs, templates, etc.) and allow multiple ESXi hosts to access them simultaneously, enabling features like vMotion and high availability. They present storage abstractly, hiding underlying hardware details, and use locking mechanisms for data consistency when multiple hosts access the same storage. || Key Characteristics __Clustered File System: Allows several ESXi hosts to read and write to the same datastore concurrently, crucial for shared storage environments. __Block-Level Storage: VMFS runs on block storage devices (like LUNs) rather than network file shares (like NFS). __VM-Optimized: High-performance design for large virtual disk files (VMDKs) and metadata. __Logical Container: Abstracts physical storage, presenting it as a unified, manageable volume for VMs. __Metadata Management: Tracks VM files, directories, and links, updating consistently during VM operations (power on/off, vMotion, etc.). || How it Works __Storage Provisioning: A physical storage device (LUN) is presented to ESXi hosts. __VMFS Formatting: The LUN is formatted with the VMFS file system. __Datastore Creation: This formatted volume becomes a VMFS datastore, a logical pool of storage. __VM Storage: Virtual machine files are stored within this datastore. __Host Access: Multiple ESXi hosts can access and use the same VMFS datastore for their virtual machines. || VMFS Versions __VMFS5 & VMFS6: Common versions, with VMFS6 (introduced with vSphere 6.5) offering features like automatic space reclamation (UNMAP) and larger block sizes for bigger files. ITSA VMware Read-Only Mode Hands-On Lab Rentals. RENT LAB @ITSA: Link https://www.itsa.cloud/contact RENT LAB @EBAY: Link https://ebay.us/m/iwfbqs Learn more at: https://www.ITSA.Cloud