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John R. Dunning wrote: |
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> From: Bryan Green <bgreen@××××××××.gov> |
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> A longer term solution is to do some combination of remodularizing vfs and |
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> recasting the lustre stuff so as to depend less on getting its fingers into |
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> the guts. I once spent some time looking into that, and I do believe it's |
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> possible, but it would take some work, and would really need to be done in |
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> concert with the rest of the core kernel guys, and I ran out of time to pursue |
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> it. In the meantime, the more the gentoo community can resist the temptation |
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> to patch the kernel (at least the vfs parts of it), the easier it will be to |
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> add lustre. |
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|
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> Based on what you've said, I wouldn't fool around with SLES, I'd just figure |
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> out what close-to-vanilla kernel you want to start from (picking one you think |
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> you can live with for a while) and do some part of what I described above. |
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> You might have a somewhat easier time of it if you started with 2.6.18, as I |
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> believe there's a cfs-supplied patchset for that one. If you want to start |
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> from a gentoo 2.6.18 one, I suspect your task will be to start with vanilla, |
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> make that work, then work out how to re-apply the gentoo patches. Re getting |
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> cfs to help, my bet would be that you'll have an easier time getting the |
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> gentoo community to create patches that are amenable to going on top of a |
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> lustre-ized vanilla kernel (and relying on cfs to support vanilla kernels) |
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> than you will getting cfs to generate patches to go on top of gentoo. If you |
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> watch the lustre lists, you'll see more people asking for vanilla than are |
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> asking for gentoo. |
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|
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I've just got a couple comments on this. |
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|
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* The gentoo-sources patches are almost all upstream and based on the |
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W.X.Y.Z "stable release" patchsets, except for 2-3 cases that probably |
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aren't relevant to clusters. As a result, Gentoo folks would be |
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reasonably well off just running vanilla-sources, which groups them in |
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with everyone else wanting Lustre on a vanilla kernel. |
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|
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* Normally I would recommend hardened-sources for anything resembling a |
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server, but you should have all your nodes and file servers blocked off |
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from the Internet anyway so that's a non-issue. |
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|
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Thanks, |
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Donnie |