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| manuals:bachelorservers [2020/03/25 12:41] – deul | manuals:bachelorservers [2020/11/26 22:01] (current) – deul |
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| ===== Servers for bachelor students ===== | ===== Servers for bachelor students ===== |
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| {{ :manuals:bach_servers.png?300|}}Leiden Observatory provides three powerful compute servers that bachelor students will use for their research projects. Each server has 96 CPU cores, 500 GB of internal memory, 50 TB of disk storage, and runs the Linux operating system ''RedHat'' version 7. Students are expected to use their own laptop or desktop computer (or possibly some other device) to connect to one of the servers via the internet. This page provides information on how to connect to the servers, and some basic information on how to use them. More general information about the computer environment and the software used by Leiden Observatory can be found [[:sterrewacht_strw|here]]. | The Bachelor servers will be incorporated into the [[manuals:virtualdesktopserver|Virtual Desktop Cluster]] |
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| | One by one the bach1, bach2 and bach3 servers will be added to the Virtual Desktop Cluster following this schedule:. |
| | * bach3 will be migrated first, migration date 25 nov 2020. /data2 verplaatst naar /net/vdesk/bach3/ |
| | * bach2 will be migrated second, migration date 27 nov 2020. /data2 verplaatst naar /net/vdesk/bach2/ |
| | * bach1 will be migrated third, migration date 1 dec 2020. /data2 verplaatst naar /net/vdesk/bach1/ |
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| | On the date given above you will not have access to the system starting 08:00 hours. We will be migrating the data from bach[1-3]'s ''/data2'' disk to the Virtaul Desktop Cluster ''/data2'' disk under the directory ''/data2/bach[1-3]''. Which is visible on all machines as ''/net/vdesk/data2''. At the end of the day all data should be moved and we will start the conversion of the ''bach[1-3]'' machine into ''vdesk[4-6]''. |
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| | Please start using {{https://vdesk.strw.leidenuniv.nl}} |
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| | ---- |
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| | =====Old access information===== |
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| | {{ :manuals:bach_servers.png?300|}}Leiden Observatory provides three powerful compute servers that bachelor students will use for their research projects. Each server has 96 CPU cores, 500 GB of internal memory, 50 TB of disk storage, and runs the Linux operating system ''RedHat'' version 7. Students are expected to use their own laptop or desktop computer (or possibly some other device) to connect to one of the servers via the internet. This page provides information on how to connect to the servers, and some basic information on how to use them. More general information about the computer environment and the software used by Leiden Observatory can be found [[:sterrewacht_strw|here]]. In particular, students are familiarise themselves with the [[linux:disk_quota| disk quota system]] in place on the /home disk to avoid connection issues. |
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| Note that students need a Leiden Observatory computer account (which is **not** the same as an ULCN account) to be able to connect to the servers. | Note that students need a Leiden Observatory computer account (which is **not** the same as an ULCN account) to be able to connect to the servers. |
| ==== Storing and accessing your project data ==== | ==== Storing and accessing your project data ==== |
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| Project data can be stored on one of the three 50 TB disk storages connected to the bach servers (see schematic drawing below). From any of the bach servers (or any Linux computer on the Leiden Observatory network), you can access any of the three storages via the ''/net/<server>/data2'' path, where ''<server>'' is the name of the server that the storage is connected to (bach1, bach2, or bach3, without the .strw.leidenuniv.nl part). For example, you can have a session running on bach1 and store/access your data on the storage connected to bach3 using the ''/net/bach3/data2'' path. To keep the data from many users organized, please open a terminal and create a sub-directory with your Leiden Observatory username to store your data in. For example: | Project data can be stored on one of the three 50 TB disk storages connected to the bach servers (see schematic drawing below). **It is important that you avoid storing project data in your /home directory as the amount of storage you have on the /home disk is [[linux:disk_quota| limited]].** If your exceed your quota on the /home disk, you will be unable to connect to the Sterrewacht computers. From any of the bach servers (or any Linux computer on the Leiden Observatory network), you can access any of the three storages connected to the bach servers via the ''/net/<server>/data2'' path, where ''<server>'' is the name of the server that the storage is connected to (bach1, bach2, or bach3, without the .strw.leidenuniv.nl part). For example, you can have a session running on bach1 and store/access your data on the storage connected to bach3 using the ''/net/bach3/data2'' path. To keep the data from many users organized, please open a terminal and create a sub-directory with your Leiden Observatory username to store your data in. For example: |
| <code> | <code> |
| mkdir /net/bach3/data2/jklaassen | mkdir /net/bach3/data2/jklaassen |
