Source: Which tools and technologies are used to build the Stack Exchange Network?
Hardware list & prices
- 11 Dell R610 IIS web servers (9 shared for all production like SO, two for Meta and development):
- 2x Intel Xeon Processor E5640 @ 2.66 GHz Quad Core with 8 threads
- 32 GB RAM
- Windows Server 2012
- Two drives
- RAID 1
- 2x Intel 320 300GB SSD (RAID 1)
- 4x 1Gb network team
- Three Dell R720xd database servers (two in New York City, one in Oregon, using SQL AlwaysOn Clustering) (Global “Sites” DB & Stack Overflow dedicated):
- 2x Intel Xeon Processor E5-2680 @ 2.70 GHz
- 384 GB RAM
- 21 drives
- Mirrored Pair for OS
- 16+1 Intel 710 200GB SSD RAID10 for databases
- SQL Server 2012 SP1
- 2x 10Gb network team
- Three Dell R710 database servers (two in New York City, one in Oregon, using SQL AlwaysOn Clustering) (All other sites, Careers, Area 51, etc.):
- 2x Intel Xeon Processor X5680 @ 3.33 GH
- 288 GB RAM
- 6 drives
- Mirrored Pair for OS
- 4 Intel S3700 800GB SSD RAID10 for databases
- SQL Server 2012 SP1
- 2x 10Gb network team
- Two Dell R620 HAProxy/nginx servers:
- 2x Intel Xeon Processor E5-2650 @ 2.00 GHz
- 32 GB RAM
- CentOS 6.x
- 2 Dell R610 Redis servers:
- 2x Intel Xeon Processor E5640 @ 2.66 GHz
- 96 GB RAM
- CentOS
Price: 2826.00 USD
Total: 5652.00 USD
- 3x Dell R610 Service servers for tag engine/search:
- 2x Intel Xeon Processor E5660 @ 2.80 GHz
- 72 GB RAM
Price: 1789.00 USD (64Gb)
Total: 5367.00 USD (64Gb)
- One Dell R610 Linux backup server running NetBackup:
- 1x Intel Xeon Processor E5640 @ 2.66 GHz
- 32 GB RAM
- One Dell R610 Linux management server for log files:
- 1x Intel Xeon Processor E5640 @ 2.66 GHz
- 32 GB RAM
- One Dell R620 Orion monitoring server:
- 2x Intel Xeon Processor E5-2650 @ 2.00 GHz
- 32 GB RAM
- Two Dell R610 VMWare ESXi:
- 1x Intel Xeon Processor E5640 @ 2.66 GHz
- 16 GB RAM
- 2 Cisco 3945 routers
- 2 ASA 5525X firewalls
- 2 Cisco Nexus 5596 Cores in an active/active redundant configuration
Sources:
