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cluster:93 [2011/01/11 15:38] hmeij |
cluster:93 [2011/01/11 15:47] hmeij |
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There are no changes to the Dell cluster (petaltail/ | There are no changes to the Dell cluster (petaltail/ | ||
- | If we like the HP management tools, in the future we may ingest cluster petaltail/ | + | If we like the HP management tools, in the future we may ingest cluster petaltail/ |
As always, suggestions welcome. | As always, suggestions welcome. | ||
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* We continually run out of disk space for our home directories. | * We continually run out of disk space for our home directories. | ||
- | * We wanted more nodes, | + | * We wanted more nodes, |
* All nodes should be on an Infiniband switch. | * All nodes should be on an Infiniband switch. | ||
* A single queue is preferred. | * A single queue is preferred. | ||
- | * Data (NFS) was to be served up via a secondary gigabit ethernet switch, hence not compete with administrative traffic. | + | * Data (NFS) traffic |
* (With the HP solution we will actually route data (NFS) traffic over the infiniband switch using OFED/MPI, a practice called [[http:// | * (With the HP solution we will actually route data (NFS) traffic over the infiniband switch using OFED/MPI, a practice called [[http:// | ||
* Linux (Redhat or CentOS) as operating system. | * Linux (Redhat or CentOS) as operating system. | ||
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The home directory disk space (5 TB) on the clusters is served up via NFS from one of our data center NetApp storage servers (named filer3). | The home directory disk space (5 TB) on the clusters is served up via NFS from one of our data center NetApp storage servers (named filer3). | ||
- | In order to do this, your old home directory content was copied over christmas-newyears break. | + | In order to do this, your old home directory content was copied over christmas-newyears break to greentail. Since then, it will be refreshed //weekly// from filer3 to greentail' |
+ | * When you create new files in your old home dirs they will show up on greentail' | ||
+ | * If you delete files in old home dirs, and they have already been copied over, the files will remain in your new home dirs. | ||
+ | * If you create new files in greentail' | ||
+ | * If you modify a file on greentail' | ||
To avoid a conflict between home dirs I strongly suggest you create a directory to store the files you will be creating on greentail, for example / | To avoid a conflict between home dirs I strongly suggest you create a directory to store the files you will be creating on greentail, for example / |