some comments on geom(8)
Poul-Henning Kamp
phk at phk.freebsd.dk
Thu May 20 03:42:41 PDT 2004
These are merely comments and not binding in any way.
The idea behind the gctl_*(9) api was to avoid class specific code
in userland to the extent possible and to converge on a common command
set for geom classes to make life easier and more intuitive for
administrators.
For a simple operation like "create", I have a hard time seeing why
we need class specific code in userland.
I would expect to be able to type:
create stripe ad0s1 ad1s1
into geom(8) and see it construct a g_ctl containing:
verb "create"
class "stripe"
nprovider "2"
provider0 "ad0s1"
provider1 "ad1s1"
which I would expect the geom_stripe class in the kernel to understand.
If I had typed
create stripe -stripe 64 ad0s1 ad1s1
It would be:
verb "create"
class "stripe"
nprovider "2"
provider0 "ad0s1"
provider1 "ad1s1"
stripe "64"
Similar
destroy foobar
should examine the XML status to find the class of the "foobar"
generate something like:
verb "destroy"
class "foo"
target "foobar"
But as I said: these are non-binding comments, do it which ever
way makes sense to you guys.
Poul-Henning
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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