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Product Characteristics Use when Avoid when
Persistent Disk
  • Availibility: Zonal, Instance
  • Capacity:
    • HDD: 64Tb
    • Persistent SSD: 64Tb
    • Local SSD: 3Tb
  • Price (varies by location):
    • HDD: $0.04
    • Persistent SSD: $0.170
    • Local SSD: $0.080
  • Transactional: no
  • Consistency: Strong
  • IOPS R/W:
    • HDD: 3 000 / 15 000
    • Persistent SSD: 3 000 / 15 000 - 40 000
    • Local SSD: 400 000 / 280 000
   
Google Cloud Storage
  • Availibility: Multi Regional, Regional (*) zonal, however replicated across regions
  • Capacity: Unlimited
  • Price (varies by location):
    • Multi Regional $0.026
    • Regional $0.02
    • Nearline $0.01
    • Coldline $0.007 
  • Transactional: No
  • Consistency: Strong
   
Google Cloud Bigtable
  • Availibility: Zonal
  • Capacity: 
  • Unlimited
  • Price: $0.17 per GB/month
  • Transactional: No
  • Consistency: Eventual
   
Google Cloud Datastore
  • Availibility: Fully managed: Global or Multiregional
  • Capacity: Unlimited
  • Price: $0.18
  • Transactional: Yes
  • Consistency: Strong for row, eventual for queries 
- Need to scale for read prformance
- Data is hierarchical with key/value 
- Need strong support for transactions, use instead SQL or Spanner
- Need support non hierarchical or unstructured data, use instead BigTable or Storage
- Need analytics (OLAP) / BI / data warehousing, use instead BigQuery
- Need to store Blobs > 10MB, use instead Storage
- Need to frequent reads and writes by key 
Google Cloud SQL
  • Availibility: Zonal
  • Capacity: Limited with storage
  • Price:
  • Transactional: Yes
  • Consistency: Strong
   
Google Cloud Spanner
  • Availibility: Multi Regional
  • Capacity: 
  • Price:
  • Transactional: Yes
  • Consistency: Strong
   
Google BigQuery
  • Availibility: Multi Regional
  • Capacity:
  • Price:
  • Transactional: No
  • Consistency: Eventual