V11 SP8
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Hyperconverged Storage Pool - Sizing

Sizing a reference architecture (R.A) designed specifically for data management, translates to a decision on number and capacity of HDD’s to be used at the server node level. This is because compute and network resources are predetermined to deliver required level of performance. The choice of server node is to be based on current disk capacity needs while also providing for future growth.

Following is a platform sizing table with total usable space for varying block sizes and HDD count and capacity.

Block Size

(Nodes/Block)

HDD's Per Node HDD's in Block HDD Size Raw Capacity per Block Usable Capacity
3 6 18 6 TB 108 TB 72 TB
8 TB 144 TB 96 TB
10 TB 180 TB 120 TB
12 36 6 TB 216 TB 144 TB
8 TB 288 TB 192 TB
10 TB 360 TB 240 TB
24 72 6 TB 432 TB 288 TB
8 TB 576 TB 384 TB
10 TB 720 TB 480 TB
6 6 36 6 TB 216 TB 144 TB
8 TB 288 TB 192 TB
10 TB 360 TB 240 TB
12 72 6 TB 432 TB 288 TB
8 TB 576 TB 384 TB
10 TB 720 TB 480 TB
24 144 6 TB 864 TB 576 TB
8 TB 1152 TB 768 TB
10 TB 1440 TB 960 TB

Total disk capacity requirement is dependent on such customer driven data protection Service Level Agreement (SLA) criteria as frequency of backups, rate of change of data, retention period and number of data replicas. The idea is to translate customer data protection requirements into disk capacity needs. Then, information from the above sizing and resiliency tables may be used to arrive at a platform configuration that meets requirements.