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I live in Austin, TX and am active with the Capital Area Central Texas |
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Unix Society (CACTUS). IBM has a big operation here, and at one |
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point CACTUS had a presentation by some of the principals in the EVMS |
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project who were employed by IBM locally. IBM basically funded the |
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development of EVMS by paying these folks to work full time on it, and |
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the entire project was open sourced from the git-go. Kudos to IBM for |
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this one! |
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|
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The impression I got was that EVMS was never intended to be competitive |
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with LVM, but was rather intended to be an umbrella disk management |
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system which would handle RAID, LVM, partitioning, etc - anything in |
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Linux which involves management of disk utilization. There are |
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basically two parts to EVMS. One is the management system itself, which |
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presents a published API. This was the central part of the project, as |
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I understood it. The EVMS devs also wrote a GUI to interact with the |
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API, which was both a proof of concept and a usable interface. There |
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are also CLI tools to manage EVMS, yes? Same API. So basically EVMS |
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was always focused at a higher level of management than is LVM. |
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|
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I'm not sure, but it may be that EVMS is also capable of doing volume |
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management on AIX, too. |
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|
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On Wed, 2007-02-07 at 10:34 +0000, Duncan wrote: |
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> I haven't looked into EVMS, no. However, as I understand it, while |
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> EVMS |
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> and LVM2 were at one time built on different kernel mechanisms, when |
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> LVM2 |
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> was selected for merging into the mainline kernel (2.5 era I believe, |
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> 2002), EVMS decided rather than fight it, to take their already great |
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> management tools and make them work with the LVM2 framework as it was |
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> merged into the kernel. =8^) Thus, I believe EVMS is now simply what |
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> amounts to a GUI front-end to the LVM2 system as it exists in the |
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> kernel |
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> and lower level command-line tools. |
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> |
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|
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-- |
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