vSAN 6.7 disk groups

- [Instructor] In this video I'll introduce … the concept of disk groups and I'll show you … some of the ways in which you can improve performance … and manage your overall capacity within your disk groups. … So here we see a cluster of ESXi hosts. … And the storage on each host is organized into disk groups. … We have hard disk drives which present … our persistent storage or … as they're called our capacity devices. … And then we have SSDs, providing a read cache … and a write buffer. … And so in this configuration, … and by the way you have lots of options here. … You can have up to seven capacity devices … or as little as one capacity device. … If you go with an all flash configuration … your capacity devices can be SSDs. … There's all different ways … that you can set up these disk groups. … So for this particular example, I've got one disk group … on each host with six traditional magnetic hard disks … as capacity devices and one SSD as the cache tier. … So the SSD is providing a read cache and a write buffer. …