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OSNEXUS QuantaStor SAN/NAS Solution Designer

Server/Cluster Specification
Select the number of servers per high-availability cluster, choose single server for non-HA configurations.
Our general recommendation is to have a 1:1 ratio where a GB of RAM is added to the server for each TB of usable capacity. For most backup and archive configurations the required RAM requirements are lower and a reduced ratio may be used.
Number of identical clusters. Each cluster gets the full storage pool design below, so the pool capacities are per cluster.
Reserved drive slots indicates the percentage of drive bays per cluster to remain empty for future expansion. This is helpful for starting the cluster with a larger number of servers that are partially populated.

Storage Pool Configuration
Pool 1
Usable capacity of this pool per cluster. The number of devices and enclosures is sized automatically to reach it.
Log devices boost write performance by committing a copy of all data writes to fast NVMe/SSD storage first which enables the system flush data out to HDD devices asynchronously and more efficiently in larger blocks.
Read cache devices act as an SSD extension of the RAM based read cache. Usually the RAM based read cache is sufficient but some use cases like video playback can greatly benefit from the additional read cache capacity.
Metadata offload devices serve as storage for pointers used to locate data blocks on the drives.
Compression % indicates the amount of additional usable capacity is gained due to data compression. If the data is pre-compressed such as images, video or pre-encrypted files set this to 0%.
Reserved free-space should be at least 10% to avoid performance degradation as the system reaches its maximum designed capacity. Lower amounts such as 5% are acceptible for archive configurations. Systems configured for database and virtualization use cases should account for a 20% or larger free space overhead to ensure no loss of performance.

License Summary
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Rack Summary

Solution Summary
Setting Value
Clusters
Servers
Storage Enclosures
Total Rack Space
Total Usable Capacity
Total Usable w/ Compression
Total Raw Capacity
Total Pool Count
Estimated Power Req
Estimated Power Cost/mo
Estimated HW Cost
HW Price/TB (raw)

Pool Summary

Server Specification

Disk Enclosure Specification
Click here for SAS cabling diagrams

Device Specification

Solution Design URL