[linux-lvm] Max. devices supported in LVM.
Heinz J . Mauelshagen
mauelshagen at sistina.com
Wed Nov 13 03:56:02 UTC 2002
On Tue, Nov 12, 2002 at 03:26:10PM -0700, Govindan, Thiru wrote:
> What are the max. number of devices that can be supported in
> LVM. Can I add as many devices as possible ?? what is the limiting factor ?.
> Also what are the max. VGs and volumes that can be created.
With LVM1, a grand total of 256 VGs+LVs are supported, because of fixed major
device numbers used. IOW: you can have up to 256 LVs in just 1 VG or up
to 256 VGs with 1 LV each (not that usefull ;)
LVM2 will remove that constraint in Linux 2.5 by using dynamic major numbers
shortly. In Linux 2.5 that constraint will disapear anyway soon.
Heinz -- The LVM Guy --
*** Software bugs are stupid.
Nevertheless it needs not so stupid people to solve them ***
Heinz Mauelshagen Sistina Software Inc.
Senior Consultant/Developer Am Sonnenhang 11
Mauelshagen at Sistina.com +49 2626 141200
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