Reading Time: 3 minutes If you use SSD disks connected to a RAID controller like the Dell PERC (common in most Dell PowerEdge server), is common that the disks may be not recognized as SSD on the upper level. Because this type of RAID card cannot have a┬ápass-thought feature (or VSAN friendly in VMware world) and is threated as a common virtual disk. If the purpose is just add the SSD as a cache system, you can use the integrated (in most recentrly PERC) feature: CacheCade is used to improve random read performance of the Hard Disk Drive (HDD) […]