Difference between revisions of "Sysadmin"

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Columns: machine name, IPs, type (virtual, metal), purpose, dies, cores, RAM
 
Columns: machine name, IPs, type (virtual, metal), purpose, dies, cores, RAM
  
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== Compute (servers and clusters) ==
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== Compute Resources ==
  
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[https://wiki.cs.earlham.edu/index.php/Sysadmin:Computer_Resources Machines and VMs related information here!]
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{| class="wikitable"
 
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|+ CS machines and cluster machines
 
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! Machine name !! 159 Ip Address !! 10Gb Ip address !! Operating System !! Metal or Virtual !! Description !! RAM
 
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| Bowie || 159.28.22.5 || 10.10.10.15 || Debian 9 || Metal || hosts and exports user files; Jupyterhub; landing server || 198 GB
 
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| Smiley || 159.28.22.251 || 10.10.10.252 || Ubuntu 18.04 || Metal || VM host, not accessible to regular users
 
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| Web || 159.28.22.2 || 10.10.10.200 || Ubuntu 18.04 || Virtual || Website host || 8 GB
 
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| Auth || 159.28.22.39 || No 10Gb internet|| CentOS 7 || Virtual || host of LDAP user database || 4 GB
 
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| Code || 159.28.22.42 || 10.10.10.42 || Ubuntu 18.04 || Virtual || Gitlab host || 4 GB
 
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| Net || 159.28.22.1 || 10.10.10.100 || Ubuntu 18.04 || Virtual || network administration host for CS || 4 GB
 
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| Lovelace || 159.28.23.35 || 10.10.10.35 || CentOS 7 || Metal || Large compute server || 96 GB
 
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| Hopper || 159.28.23.1 || 10.10.10.1 || Debian 10 || Metal || landing server, NFS host for cluster || 64 GB
 
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| Sakurai || 159.23.23.3 || 10.10.10.3 || Debian 10 || Metal || Runs Backup || 12 GB
 
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| Miyamoto || 159.28.23.45 || No 10Gb currently || Debian 10 || Metal || Runs Backup || 16 GB
 
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| HopperPrime || 159.28.23.142 || 10.10.10.142 || Debian 10 || Metal || Runs Backup || 16 GB
 
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| Meier || 159.28.23.44 || No 10Gb currently || Debian 10 || Metal || Runs Backup || 16 GB
 
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| Monitor || 159.28.23.250 || No 10Gb internet || CentOS 7 || Metal || Server Monitoring || 16 GB
 
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| Bronte || 159.28.23.140 || No 10Gb internet || CentOS 7 || Metal || Large compute server || 115 GB
 
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| Layout 0 || 159.28.23.2 || 10.10.10.2 || CentOS 7 || Metal || Head Node || 32 GB
 
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| Layout 1 || None || None || CentOS 7 || Metal || Compute Node || 32 GB
 
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| Layout 2 || None || None || CentOS 7 || Metal || Compute Node || 32 GB
 
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| Layout 3 || None || None || CentOS 7 || Metal || Compute Node || 32 GB
 
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| Layout 4 || None || None || CentOS 7 || Metal || Compute Node || 32 GB
 
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| Whedon || 159.28.23.4 || No 10Gb internet|| CentOS 7 || Metal || Head Node || 230 GB
 
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| Pollock || 159.28.23.8 || 10.10.10.8 || CentOS 7 || Metal || Large compute server || 131 GB
 
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| Urey || 159.28.22.139 || No 10Gb internet || XCP-ng || Metal || Sysadmin Sandbox Environment || 16 GB
 
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|}
 
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CS machines:  
 
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bowie.cs.earlham.edu web.cs.earlham.edu auth.cs.earlham.edu code.cs.earlham.edu net.cs.earlham.edu
 
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Cluster Machines: lovelace.cluster.earlham.edu hopper.cluster.earlham.edu hopperprime.cluster.earlham.edu sakurai.cluster.earlham.edu bronte.cluster.earlham.edu whedon.cluster.earlham.edu pollock.cluster.earlham.edu layout.cluster.earlham.edu monitor.cluster.earlham.edu miyamoto.cluster.earlham.edu
 
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There are 6 machines currently not in use in the 6 spaces above Monitor on the Equitorial Guinea rack
 
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=== Specialized resources ===
 
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Specialized computing applications are supported on the following machines:
 
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* [[Sysadmin:GPGPU|GPU’s for AI/ML/data science]]: layout cluster
 
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* virtualization: smiley
 
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* containers: bowie
 
  
 
== Network ==
 
== Network ==
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[[Sysadmin:Layers of abstraction for filesystems|A word about what's happening between files and the drives they live on.]]
 
[[Sysadmin:Layers of abstraction for filesystems|A word about what's happening between files and the drives they live on.]]
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= New sysadmins =
 
= New sysadmins =
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These pages contain a lot of the most important information about our systems and how we operate.
 
These pages contain a lot of the most important information about our systems and how we operate.
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===Handy Tools===
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* [http://monitor.cluster.earlham.edu:8088/packages Porter's Package Explorer]
  
 
===Technical docs===
 
===Technical docs===
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* [[Sysadmin:Services:ClusterOverview|Cluster Overview]] and [[Sysadmin:Ccg-admin|additional details]]
 
* [[Sysadmin:Services:ClusterOverview|Cluster Overview]] and [[Sysadmin:Ccg-admin|additional details]]
 
* [[Sysadmin:Firewall|Firewall]] running on babbage.cs.e.e
 
* [[Sysadmin:Firewall|Firewall]] running on babbage.cs.e.e
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* [[Sysadmin:Setting_up_Lovelace_Lab_Machines|Setting up Lab Machines]]
  
 
===Common tasks===
 
===Common tasks===

Latest revision as of 08:32, 20 March 2024

This is the hub for the CS sysadmins on the wiki.

Overview

If you're visually inclined, we have a colorful and easy-to-edit map of our servers here!

Server room

Our servers are in Noyes, the science building that predates the CST. For general information about the server room and how to use it, check out this page.

Columns: machine name, IPs, type (virtual, metal), purpose, dies, cores, RAM

Compute Resources

Machines and VMs related information here!

Network

We have two network fabrics linking the machines together. There are three subdomains.

10 Gb

We have 10Gb fabric to mount files over NFS. Machines with 10Gb support have an IP address in the class C range 10.10.10.0/24 and we want to add DNS to these addresses.

1 Gb (cluster, cs)

We have two class C subnets on the 1Gb fabric: 159.28.22.0/24 (CS) and 159.28.23.0/24 (cluster). This means we have double the IP addresses on the 1Gb fabric that we have on the 10Gb fabric.

Any user accessing *.cluster.earlham.edu and *.cs.earlham.edu is making calls on a 1Gb network.

Intra-cluster fabrics

The layout cluster has an Infiniband infrastructure. Wachowski has only a 1Gb infrastructure.

Power

We have a backup power supply, with batteries last upgraded in 2019 (?). We’ve had a few outages since then and power has held up well.

HVAC

HVAC systems are static and are largely managed by Facilities.

See full topology diagrams here.

A word about what's happening between files and the drives they live on.

New sysadmins

These pages will be helpful for you if you're just starting in the group:

Note: you'll need to log in with wiki credentials to see most Sysadmin pages.

Additional information

These pages contain a lot of the most important information about our systems and how we operate.

Handy Tools

Technical docs

Common tasks

Group and institution information

Retrieved from "https://wiki.cs.earlham.edu/index.php?title=Sysadmin&oldid=18143"