> For the complete documentation index, see [llms.txt](https://documentation.tjhsst.edu/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://documentation.tjhsst.edu/obsolete/arcturus.md).

# Arcturus

{% hint style="warning" %}
This page contains information on systems that are in happy retirement from the Computer Systems Lab.
{% endhint %}

**Arcturus** is a big big SPARC server. Simply put, arcturus is a high-performance computing (HPC) server. It is also a Sun Ray server for HPC projects (separate from the primary Sun Ray FailOver Group (FOG)).

## Technical Specifications

| Field             | Value                                            |
| ----------------- | ------------------------------------------------ |
| **Server Type**   | Sun SPARC Enterprise M4000                       |
| **CPU**           | 4x SPARC64-VI (2 cores, 2 threads/core) @2.15GHz |
| **RAM**           | 16 GB on 2 boards (max 128 GB on 4 boards)       |
| **Hard Disks**    | 2x 73GB 2.5in 10K SAS, RAID 1                    |
| **OS**            | Solaris 10                                       |
| **Purchase Date** | Winter 2008                                      |

### Notes

***IMPORTANT:*** The power supplies are not redundant unless they are running at 208V and configured to be redundant. We are currently running them at 120V. Do not unplug either power cord without powering arcturus off first!

## History

Arcturus was received as part of the [2008 Sun AEG](/machines/history/2008-sun-aeg.md).

## Trivia

Arcturus replaced [Moloch](/obsolete/moloch.md). While it does not have hot swap CPU and memory boards like moloch did, just about every other part except the DVD player is hot-swappable, even the PCIe and PCI-X slots. It also pulls less power than moloch (idle vs. idle). Arcturus' CPUs can be upgraded to the newer SPARC64-VII (2.4 Ghz, 4 core, 2 threads/core) processors should we ever want to and can afford to.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://documentation.tjhsst.edu/obsolete/arcturus.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.