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Solution sizing

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Storage sizing

This section describes the number of studies and the corresponding infrastructure requirements.

The storage requirements that are listed in the following table assume that existing data is 1 year’s worth plus projected growth for 1 year of study in the primary system (tier 1, 2). Additional storage needs for projected growth for 3 years beyond the first 2 years are listed separately.

Small Medium Large

Annual studies

<250K studies

250K–500K studies

500K–1 million studies

Tier 1 Storage

IOPS (average)

1.5K–5K

5K–15K

15K–40K

IOPS (peak)

5K

20K

65K

Throughput

50–100MBps

50–150MBps

100–300MBps

Capacity data center 1
(1 year of old data and 1 year of new study)

70TB

140TB

260TB

Capacity data center 1
(additional need for 4 years for new study)

25TB

45TB

80TB

Capacity data center 2
(1 year of old data and 1 year of new study)

45TB

110TB

165TB

Capacity data center 2
(additional need for 4 years for new study)

25TB

45TB

80TB

Tier 2 Storage

IOPS (average)

1K

2K

3K

Capacity data center 1

320TB

800TB

2000TB

Compute sizing

The table below lists the compute requirements for small, medium, and large medical imaging systems.

Small Medium Large

Annual studies

<250K studies

250K–500K studies

500K–1 million studies

Data Center 1

Number of VMs

21

27

35

Total virtual CPU (vCPU) count

56

124

220

Total memory requirement

225GB

450GB

900GB

Physical server (blades) specs
(assume 1 vCPU -=1 core)

4 x servers with 20 cores and 192GB RAM each

8 x servers with 20 cores and 128GB RAM each

14 x servers with 20 cores and 128GB RAM each

Data Center 2

Number of VMs

15

17

22

Total vCPU count

42

72

140

Total memory requirement

179GB

243GB

513GB

Physical server (blades) specs
(assume 1 vCPU = 1 core)

3 x servers with 20 cores and 168GB RAM each

6 x servers with 20 cores and 128GB RAM each

8 x servers with 24 cores and 128GB RAM each

Networking and Cisco UCS infrastructure sizing

The table below lists the networking and Cisco UCS infrastructure requirements for small, medium, and large medical imaging systems.

Small Medium Large

Data Center 1

Number of storage node ports

2 converged network adapters (CNAs); 2 FCs

2 CNAs; 2 FCs

2 CNAs; 2 FCs

IP network switch ports (Cisco Nexus 9000)

48-port switch

48-port switch

48-port switch

FC switch (Cisco MDS)

32-port switch

32-port switch

48-port switch

Cisco UCS chassis count

1 x 5108

1 x 5108

2 x 5108

Cisco UCS Fabric Interconnect

2 x 6332

2 x 6332

2 x 6332

Data Center 2

Cisco UCS chassis count

1 x 5108

1 x 5108

1 x 5108

Cisco UCS Fabric Interconnect

2 x 6332

2 x 6332

2 x 6332

Number of storage node ports

2 CNAs; 2 FCs

2 CNAs; 2 FCs

2 CNAs; 2 FCs

IP network switch ports (Cisco Nexus 9000)

48-port switch

48-port switch

48-port switch

FC switch (Cisco MDS)

32-port switch

32-port switch

48-port switch