Hi!
I'm about to integrate support for LVM mirrors into the configuration
management system I'm maintaining for a client. This system has a "scan"
function that retrieves the current configuration and compares it
against a database.
My problem is that I'm unable to get the allocation info for the parts
of a mirrored volume under SLES 10 (lvm2 RPM is at 2.02.17, even
OpenSuSE 10.3 has only lvm2 2.02.25).
lvdisplay --maps only gives me:
--- Segments ---
Logical extent 0 to 24:
Type mirror
Mirrors 2
Mirror size 25
Mirror log volume testlv0_mlog
Mirror region size 512.00 KB
Mirror original:
Logical volume testlv0_mimage_0
Logical extents 0 to 24
Mirror destinations:
Logical volume testlv0_mimage_1
Logical extents 0 to 24
This is lacking the names of the PVs. (Has this been implemented in the
meantime? It would be useful - nudge, nudge...)
BTW, a simple volume *has* this information:
--- Segments ---
Logical extent 0 to 31:
Type linear
Physical volume /dev/sda3
Physical extents 1261 to 1292
I'm unable to convince lvdisplay to give me any information on, e.g.,
testlv0_mimage_0. And pvdisplay --maps does not display allocation maps
up to 2.02.27, AFAIK.
So does anybody have a way to find out on which PV the mirror parts are?
Short of installing our own lvm2 RPM, of course. Or parsing the raw LVM
config info on the disks...
Thanks for any hint,
Lupe Christoph
--
| There is no substitute for bad design except worse design. |
| /me |