> 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/machines/history/2018-purchases.md). # 2018 Purchases ### Summary In the summer of 2018, the CSL purchased 6 new HP DL385 G6 servers: three to serve VMs and three as storage servers. They were delivered and installed at the beginning of the 2018-19 school year. ### Rationale Previously the storage backend had been a single disk array (Apocalypse) connected to [Valdes ](/machines/ceph/valdes.md)and [Barrel](/machines/ceph/barrel.md). With the introduction of Ceph for storage, these servers were deemed insufficient. [Ceph ](/technologies/storage/ceph.md)requires each OSD server to have its own dedicated drives, and with the Apocalypse array servers were not being assigned the right drives at startup. Therefore, DL385s with dedicated internal drives were deemed to be an optimal solution. As the production cluster was moved to these new servers, the Apocalypse array was repurposed as a backup Ceph cluster. At the same time as the storage servers purchase, three new DL385s were also purchased as VM hosts to increase the CSL's VM capacity and phase out older hardware. ### VM Servers * [Overlord](/machines/vm-servers/overlord.md) * [Waverider](/machines/vm-servers/waverider.md) * [Torch](/machines/vm-servers/torch.md) ### Storage Servers * [Karel](/machines/ceph/karel.md) * [Wumpus](/machines/ceph/wumpus.md) * [Stobar](/machines/ceph/stobar.md) --- # 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: ``` GET https://documentation.tjhsst.edu/machines/history/2018-purchases.md?ask= ``` The question should be specific, self-contained, and written in natural language. 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.