[linux-lvm] LVM /dev and /proc problems and change proposal
dale at inet.net.nz
Sun Jun 25 10:01:30 UTC 2000
> But It dissallows the user to do it and there's still plenty of free namespace
> to find a meaningfull name for the Volume Group.
I'm refering to the future when a new device gets added that just might
clash with a volume group name that a user has chosen. And we don't know
what users are going to call their volume groups and we don't know what
device names will be created in the future.
> There's a preprocessor definition LVM_DIR_PREFIX in the code, which
> supports this already.
So I see. The simplest solution is to change this default prefix, and have the
lvm stuff self-contained in its own subdirectory. Even without the name
clash this is just tidier, already /dev is very wide but not very deep.
> I don't like both, because they break the hierarchy of LVs (like virtual
> partitions) contained in VGs (like virtual disks containing physical disks).
Fair enough :-) Just throwing some ideas around.
Can I `propose' that simply by changing the default (LVM_DIR_PREFIX) in the
original LVM code and we begin `standardizing' now the LVM directories.
/dev/lvm/ (all previuos
+-- lvm [c:109,0] (need to change constant LVM_DIR in "liblvm.h" too]
+-- group [c:109,0]
+-- lvol1 [b:58,0]
+-- lvol2 [b:58,1]
> > Also I think there should be a sub-directory for lvm itself in /proc
> > ie. /proc/lvm/lvm instead of /proc/lvm.
> Already on the TODO list.
> I share your point of view in regard to /proc.
The need for /proc/lvm/... is simular to that for /dev/lvm/...
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