Cluster exceptions: Difference between revisions

Latest revision as of 18:43, 19 February 2026

These are exceptions to the "each cluster is separate" rule.

UID/GID is shared from Cluster 2 to Cluster 3 but not strictly enforced.
disks from Cluster 2 are exported read-only to Cluster 7 during the transition from 2 to 7.
we will experiment with nfs exports from cluster 2/7 to Cluster 8 aka coreHPC. Research only.
we tried nfs export from Cluster 2 to Cluster 3 shared/wynton. This was a disaster. Jobs running on wynton overloaded our nfs servers and made them unusable. This will probably happen when we export to cluster 8, but it is worth a try.
currently all www gateways are hosted on cluster 2. We will establish a www server on cluster 7 as soon as we can. We are also investigating hosting some of our www traffic on cluster 8.

No other exceptions known.

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 These are exceptions to the "each cluster is separate" rule.
-* UID/GID is shared from [[Cluster 2]] to [[Cluster 3]].
+* UID/GID is shared from [[Cluster 2]] to [[Cluster 3]] but not strictly enforced.
-* /nfs/db, /nfs/work and /nfs/home are exported from [[Cluster 2]] to [[Cluster 3]].
+* disks from [[Cluster 2]] are exported read-only to [[Cluster 7]] during the transition from 2 to 7.
-* There is some crossover between [[Cluster 0]] and [[Cluster 1]].
+* we will experiment with nfs exports from cluster 2/7 to [[Cluster 8]] aka coreHPC.  Research only.
-* There is one ssh hole in Cluster 2, which will be closed very soon.
+* we tried nfs export from [[Cluster 2]] to [[Cluster 3]] shared/wynton. This was a disaster. Jobs running on wynton overloaded our nfs servers and made them unusable. This will probably happen when we export to cluster 8, but it is worth a try.
+* currently all www gateways are hosted on cluster 2. We will establish a www server on cluster 7 as soon as we can.  We are also investigating hosting some of our www traffic on cluster 8.
 No other exceptions known.
 [[Category:Cluster]]
 [[Category:Internal]]