AH... I missed a key word.. "minimum"
minimum 1:10 ratio of SSD capacity to HDD - http://www.yellow-bricks.com/2013/09/09/vmware-vsphere-virtual-san-design-considerations/
It is a recommended practice to have a minimum 1:10 ratio of SSD capacity to HDD capacity in each disk group. In other words, when you have 1TB of HDD capacity, it is recommended to have at least 100GB of SSD capacity. Note that VMware’s recommendation has changed since BETA, new recommendation is:
Unless you already did, please read VMware vSphere Virtual SAN design considerations... which may answer most of your questions.
André
AH... I missed a key word.. "minimum"
minimum 1:10 ratio of SSD capacity to HDD - http://www.yellow-bricks.com/2013/09/09/vmware-vsphere-virtual-san-design-considerations/
It is a recommended practice to have a minimum 1:10 ratio of SSD capacity to HDD capacity in each disk group. In other words, when you have 1TB of HDD capacity, it is recommended to have at least 100GB of SSD capacity. Note that VMware’s recommendation has changed since BETA, new recommendation is:
AP, Thanks for this document, it is a good resource.
Thère IS Also a good book about vsan, you should get It.
I always had the same questions as well about minimum. Would like to be at VMworld to see about the all flash VSAN lecture.