Single Connect Sizing
SIZING CALCULATE
SECTION I: CPU SIZING
The optimum approach known in your previous designs should be calculated max 150 concurrent sessions (RDP / SSH mixed) per instance.
# | Services | Minimum CPU Core Consumption | Optimum CPU Core Consumption |
|---|---|---|---|
1 | OperatingSystem Netright-Tomcat Nssoapp Guacd SFTP Proxy Kron Tacacs Radiusd | 4 | 12 |
| Base Module + 200 SSH/Telnet Session OR 100 RDP/VNC OR 100 SFTP Proxy | 16 | 32 |
SECTION II: MEMORY SIZING
MINIMUM MEMORY CONSUMPTION
# | Services | Feature | Minimum Memory Consumption | Required For |
|---|---|---|---|---|
1 | OperatingSystem Netright-Tomcat NSSOAPP GUACD SFTP Proxy Kron Tacacs Radiusd | OS GUI SSH Proxy RDP Proxy SFTP Proxy Tacacs+ Server RADIUS Server | 16 GB | Base Software for all modules |
2 | PostgreSQL | Database | 8 GB | Database |
3 | SymmetricDS | Replication Tool | 4 GB | Replication |
4 | Buffer (%20) | All Module / OS | 4 GB | Buffer |
| | | | |
# | Totaly | | 32 GB | Total Calculated |
MODULE MEMORY CONSUMPTION
# | Module | Memory Consumption |
|---|---|---|
1 | SSH/Telnet Proxy | Each SSH Telnet session with 1 TPS (Transaction per second) requires 9 MB memory |
2 | RDP Proxy | Each RDP session requires 64 MB memory under normal user behavior (running and configuring applications. But not watching videos) |
3 | SFTP Proxy | Each SFTP session requires 30 MB memory during file upload/download |
EXAMPLE MEMORY CONSUMPTION CALCULATION
Memory sizing for 500 concurrent SSH sessions
# | Module | | Calculated |
|---|---|---|---|
1 | SSH Sessions | 500 Concurrent Sessions | 500 x 9 = 4500 MB |
| | | |
| | Total | 4.5 GB |
| | Buffer (20% of Total) | 1 GB |
| | Minimum Memory (Section II) | 32 GB |
| | Grand Total | 37.5 GB |
EXAMPLE MEMORY CONSUMPTION CALCULATION
Memory sizing for 300 concurrent SSH sessions and 50 concurrent RDP sessions
# | Module | | Calculated |
|---|---|---|---|
1 | SSH Sessions | 300 Concurrent Sessions | 300 x 9 = 2700 MB |
2 | RDP Sessions | 50 Concurrent Sessions | 50 x 64 = 3200 MB |
| | | |
| | Total | 5.9 GB |
| | Buffer (20% of Total) | 1.2 GB |
| | Minimum Memory (Section II) | 32 GB |
| | Grand Total | 39.1 GB |
SECTION III: STORAGE SIZING
STORAGE CONSUMPTION
# | Module | Minimum Memory Consumption | Description |
|---|---|---|---|
1 | Base System (OS, Apps) | 30 GB | |
2 | Database | 100 GB | It varies according to the number of concurrent sessions and usage intensity |
3 | Native Application Logs | 20 GB | |
EXAMPLE STORAGE CONSUMPTION CALCULATION
1 hour session video record's file size is approximately 38 MB.
# | Module | | Approximately Calculated |
|---|---|---|---|
| Video Record’s | 1 hour session | 38 MB |
1 | SSH/RDP Proxy | 300 sessions (Average session duration 1 hour) | 300 Sessions x 38 MB = 11.400 MB |
| | | |
| | Total | 11.5 GB |
SECTION IV: BANDWIDTH
BANDWIDTH CONSUMPTION
# | SESSIONS | Tx/Rx Total Bandwith (Avarage) |
|---|---|---|
1 | One SSH Session | 5 Kilobit per second |
2 | One RDP Session (without video) | 1 Megabit per second |
3 | One RDP Session (with video) | 64 Megabit per second |
4 | One SFTP Session | 14 Megabit per second |
5 | One TACACS Package | 5 Kilobit per second |
6 | One RADIUS Package | 1 Kilobit per second |
SECTION V : Example Calculation Nodes (It is assumed that each server is loaded with 150 Concurrent sessions)
"The optimum approach known in your previous designs should be calculated max 150 concurrent sessions (RDP / SSH mixed) per instance."
# | Module | Session | Calculated |
|---|---|---|---|
1 | RDP Proxy | 500 Concurrent Session | 500 x 9 MB = 4500 MB |
2 | SSH Proxy | 500 Concurrent Session | 500 x 64 MB = 32000 MB |
| | | |
| | Total | 36.5 GB |
| | Buffer (20% of total) | 7.3 GB |
| | Minimum Memory (SECTION II) | 32 GB (Per instance) x 6 = 192 GB |
| | Grand Total | 235.8 GB |
Calculated 500 RDP, 500 SSH Mixed Concurrent Session
| # of CPU Core ( Minimum / Optimum) | Memory |
|---|---|---|
SC Prod #1 | 16 / 32 | 6.1 GB 150 Concurrent RDP/SSH 1.3 GB 20% Buffer 32 GB Minimum Modules Memory 39.4 GB Grand Total |
SC Prod #2 | 16 / 32 | 6.1 GB 150 Concurrent RDP/SSH 1.3 GB 20% Buffer 32 GB Minimum Modules Memory 39.4 GB Grand Total |
SC Prod #3 | 16 / 32 | 6.1 GB 150 Concurrent RDP/SSH 1.3 GB 20% Buffer 32 GB Minimum Modules Memory 39.4 GB Grand Total |
SC Prod #4 | 16 / 32 | 6.1 GB 150 Concurrent RDP/SSH 1.3 GB 20% Buffer 32 GB Minimum Modules Memory 39.4 GB Grand Total |
SC Prod #5 | 16 / 32 | 6.1 GB 150 Concurrent RDP/SSH 1.3 GB 20% Buffer 32 GB Minimum Modules Memory 39.4 GB Grand Total |
SC Prod #6 | 16 / 32 | 6.1 GB 150 Concurrent RDP/SSH 1.3 GB 20% Buffer 32 GB Minimum Modules Memory 39.4 GB Grand Total |