Before accepting this page as a reference, I strongly suggest you to review the article I wrote about SPBM again. You can  find the page here.

• Stretched Cluster – In Site RAID1
• The data is also written to both sites, and the site is also maintained in RAID1, (3 servers per site)

• Storage Type -> VSAN
• Primary level of failures to tolerate -> 1
• Secondary level of failures to tolerate -> 1
• Failure tolerance Method -> RAID-1 (Mirroring – Performance)

• Stretched Cluster – In Site RAID5
• The data is also written to both sites, and the site is also maintained in the RAID5. (4 servers per site)

• Storage Type -> VSAN
• Primary level of failures to tolerate -> 1
• Secondary level of failures to tolerate -> 1
• Failure tolerance Method –> RAID-5/6 (Erasure Coding) – Capacity

• Stretched Cluster – In Site RAID6
• The data is written to both sites, and the site is also maintained in the RAID6. (6 servers per site)

• Storage Type -> VSAN
• Primary level of failures to tolerate -> 1
• Secondary level of failures to tolerate -> 2
• Failure tolerance Method –> RAID-5/6 (Erasure Coding) – Capacity

• Data Locality Preferred – RAID1
• Data is held on the Preferred site and is maintained as RAID1, and no data is retained on the other site.

• Storage Type -> VSAN
• Primary level of failures to tolerate -> 0
• Secondary level of failures to tolerate -> 1
• Data locality –> Preferred Fault Domain (Stretched)
• Failure tolerance Method -> RAID-1 (Mirroring – Performance)

• Data Locality Preferred – RAID5
• Data is held on the Preferred site and is maintained as RAID5, no data is retained on the other site.

• Storage Type -> VSAN
• Primary level of failures to tolerate -> 0
• Secondary level of failures to tolerate -> 1
• Data locality –> Preferred Fault Domain (Stretched)
• Failure tolerance Method –> RAID-5/6 (Erasure Coding) – Capacity

• Data Locality Preferred – RAID6
• Data is kept on the Preferred site and is maintained as RAID6, no data is retained on the other site.

• Storage Type-> VSAN
• Primary level of failures to tolerate -> 0
• Secondary level of failures to tolerate -> 2
• Data locality –> Preferred Fault Domain (Stretched)
• Failure tolerance Method –> RAID-5/6 (Erasure Coding) – Capacity

• Data Locality Secondary – RAID1
• Data is held on the Secondary site and is maintained as RAID1, and no data is retained on the other site.

• Storage Type -> VSAN
• Primary level of failures to tolerate -> 0
• Secondary level of failures to tolerate -> 1
• Data locality –> Secondary Fault Domain
• Failure tolerance Method -> RAID-1 (Mirroring – Performance)

• Data Locality Secondary – RAID5
• Data is held on the Secondary site and is maintained as RAID5, and no data is retained on the other site.

• Storage Type -> VSAN
• Primary level of failures to tolerate -> 0
• Secondary level of failures to tolerate -> 1
• Data locality –> Secondary Fault Domain
• Failure tolerance Method –> RAID-5/6 (Erasure Coding) – Capacity

• Data Locality Secondary – RAID 6
• Data is held on the Secondary site and is maintained as RAID6, and no data is retained on the other site.

• Storage Type -> VSAN
• Primary level of failures to tolerate -> 0
• Secondary level of failures to tolerate -> 2
• Data locality –> Secondary Fault Domain
• Failure tolerance Method –> RAID-5/6 (Erasure Coding) – Capacity