services:cephfs
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services:cephfs [2023/06/12 20:15] pdonnell |
services:cephfs [2024/01/05 20:05] (current) ljflores Need sudo unless you are running as root. |
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| ====== CephFS ====== | ====== CephFS ====== | ||
| - | There are a few CephFS file systems available in the sepia lab. These reside on the [[services:longrunningcluster|Long Running Cluster]]. Access to this Ceph cluster is available for any machine on the VPN. You can and should (!!) mount these file systems on your laptop or development machine. This reduces load on some shared machines, like [[services:teuthology|teuthology]], and usually provides faster access depending on your client or network. | + | There are a few CephFS file systems available in the sepia lab. These reside on the [[services:longrunningcluster|Long Running Cluster]]. |
| - | Below we ssh to the ''reesi001.front.sepia.ceph.com'' machine. When given access to the [[:vpnaccess|sepia VPN]], the ssh key you shared should allow accessing this machine. | + | Access to this Ceph cluster is available for any machine on the [[:vpnaccess|sepia VPN]]. You can and **should** mount these file systems on your laptop or development machine. This reduces load on some shared machines, like [[services:teuthology|teuthology]], and usually provides faster access depending on your client or network. However, for everyday use, you may prefer to access CephFS from a machine co-located with the other lab infrastructure, such as a [[:devplayground|Developer Playground]] machine, where OSD latency/bandwidth will be optimal. |
| + | |||
| + | In the scripts/commands below, we will ssh to the ''reesi001.front.sepia.ceph.com'' machine. When [[:vpnaccess#requesting_access|given access to the sepia VPN]], the ssh key you shared should allow accessing this machine. | ||
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| genmount / /scratch scratch | sudo tee -a /etc/fstab | genmount / /scratch scratch | sudo tee -a /etc/fstab | ||
| genmount / /postfile postfile | sudo tee -a /etc/fstab | genmount / /postfile postfile | sudo tee -a /etc/fstab | ||
| + | </code> | ||
| + | |||
| + | The fstab changes will cause these file systems to mount on boot. After adding these entries for the first time, you need to manually mount them: | ||
| + | |||
| + | <code bash> | ||
| + | sudo mount /teuthology | ||
| + | sudo mount /scratch | ||
| + | sudo mount /postfile | ||
| </code> | </code> | ||
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| <code bash> | <code bash> | ||
| - | ln -s /teuthology /a | + | sudo ln -s /teuthology /a |
| </code> | </code> | ||
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| The [[https://docs.ceph.com/en/latest/man/8/ceph-post-file/|ceph-post-file]] utility dumps results in this file system. Users are encouraged to use this utility to share artifacts with Ceph developers. | The [[https://docs.ceph.com/en/latest/man/8/ceph-post-file/|ceph-post-file]] utility dumps results in this file system. Users are encouraged to use this utility to share artifacts with Ceph developers. | ||
| + | |||
| + | ==== The home FS ==== | ||
| + | |||
| + | There is a "home" file system which hosts the home directories of users of teuthology and potentially other development nodes. Its access is restricted to administrators. | ||
services/cephfs.1686600952.txt.gz · Last modified: 2023/06/12 20:15 by pdonnell
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