A storage container is a defined subset of available storage within a storage pool. Storage Containers allow you to apply rules or transformations such as compression to a data set.

• Logical segmentation of SP containing groups of VM’s/files (vDisks).
• Typically have 1:1 mapping with datastore

VMware

Storage presented via NFS (default) or iSCSI

AHV

Storage presented via iSCSI

Hyper-V

Storage presented via SMB

Storage Pool

• Group of physical devices (PCIe SSD, SSD, HDD) that can span multiple nodes.
• Typically only a single pool.

vDisk

• Any file over 512KB on DSF

• Composed of extents which are groups/stored on disk as extent group

Extent

• 1MB piece of logically contiguous data which consists of n number of contiguous blocks
• Written/Read/Modified on sub-extent basis (aka slice)
• May be trimmed when moving into the cache

Extent Group

• 1MB or 4MB piece of physically contiguous stored data
• Stored as a file and owned by CVM
• Dynamically distributed among groups to provide striping across nodes/disks