Solution Matrix

	Scale-Up	Scale-Out	Scale-Out
Solution	SAN / NAS Systems	Scale-Out Block & Object Storage	Scale-Out File Storage
File System	ZFS	Ceph	Gluster
Protocol Support	Block Storage (iSCSI / FibreChannel) File Storage (CIFS/NFS/SMB)	Block Storage (iSCSI) Object Storage (S3/Swift)	File Storage (CIFS/NFS)
Key Features	Snapshots, Bit-rot protection & correction, Remote Replication, Compression, Encryption	High-availability, Compression, Encryption	Single-namespace NAS, High-availability
Minimum System Count	1 system	3 systems per cluster	3 systems per cluster
Benefits	Lower latency / Lower $/TB hardware costs	Greater expandability within a single namespace	Greater expandability within a single namespace
Workload	Virtualization / Databases / High-performance Compute / Archive / Media Editing	Virtualization / Archive / Unstructured Data	Archive only
High-availability Architecture	Use Remote-replication	Erasure-coding, Replicas	Erasure-coding, Replicas
Performance	Between 400MB/sec and 1.6GB/sec, depending on block size and number of disk adding SSD will increase IOPS to 10k-20k, all-flash systems will deliver 100k+ sustained R/W IOPS	Between 400MB/sec and 1.2GB/sec, depending on block size adding servers will boost performance	Adding systems or SSDs will boost performance. Small 3x system configurations will deliver between 400MB/sec and 1.2GB/sec sequential throughput depending on block size and number of concurrent client connections. Erasure-coding is recommended for best write performance and replica mode is recommended for best read performance.
Grids	SAN/NAS configurations can scale up to 432 TB raw by adding HDD to a 36-bay storage server	Scale-Out configurations can scale up to multi-petabyte in size by adding new servers to the QS grid	Scale-Out configurations can scale up to multi-petabyte in size by adding new servers to the QS grid
Reference Configuration	SAN/NAS Storage Servers	Scale-out Block Storage Scale-out Object Storage	Scale-out NAS Archive Storage