KVM guest disk lvm information shows up in host LVM causing duplicate vg warnings
Issue
We have a KVM host that is passing through luns to it's guests. However, now the host is detecting duplicates with the LVM details on the host. What is the best way to avoid this on the host. Here is a 'pvs' output:
[root@acme-machine123 ~]# pvs
WARNING: Duplicate VG name rootvg: Existing AWwtva-U2mW-7oRJ-0UQv-DpJx-hdPF-emRwro (created here) takes precedence over leZrPz-1Woo-k1vs-fRmx-LNst-ll5C-NpAGdd
WARNING: Duplicate VG name rootvg: Existing AWwtva-U2mW-7oRJ-0UQv-DpJx-hdPF-emRwro (created here) takes precedence over 4uW3e3-EmFK-ZRy8-Higy-Bgpv-z8A0-3myyQr
WARNING: Duplicate VG name rootvg: Existing AWwtva-U2mW-7oRJ-0UQv-DpJx-hdPF-emRwro (created here) takes precedence over 2rV6jc-WazT-NCav-L0VN-axCi-R7YF-uBrEMl
WARNING: Duplicate VG name rootvg: Existing AWwtva-U2mW-7oRJ-0UQv-DpJx-hdPF-emRwro (created here) takes precedence over 6bZZsq-Jbg4-eyVv-ejTi-A2S2-U2o2-YNQjcS
WARNING: Duplicate VG name rootvg: Existing AWwtva-U2mW-7oRJ-0UQv-DpJx-hdPF-emRwro (created here) takes precedence over ljjbTQ-MOi6-TN6V-U04g-j4m8-Juc4-D3UUZS
WARNING: Duplicate VG name rootvg: Existing AWwtva-U2mW-7oRJ-0UQv-DpJx-hdPF-emRwro (created here) takes precedence over h8CM2S-onoe-ly90-l6VP-97pq-ag7N-7cv8sH
WARNING: Duplicate VG name rootvg: Existing AWwtva-U2mW-7oRJ-0UQv-DpJx-hdPF-emRwro (created here) takes precedence over h8CM2S-onoe-ly90-l6VP-97pq-ag7N-7cv8sH
WARNING: Duplicate VG name rootvg: Existing AWwtva-U2mW-7oRJ-0UQv-DpJx-hdPF-emRwro (created here) takes precedence over ljjbTQ-MOi6-TN6V-U04g-j4m8-Juc4-D3UUZS
WARNING: Duplicate VG name rootvg: Existing AWwtva-U2mW-7oRJ-0UQv-DpJx-hdPF-emRwro (created here) takes precedence over 6bZZsq-Jbg4-eyVv-ejTi-A2S2-U2o2-YNQjcS
WARNING: Duplicate VG name rootvg: Existing AWwtva-U2mW-7oRJ-0UQv-DpJx-hdPF-emRwro (created here) takes precedence over 2rV6jc-WazT-NCav-L0VN-axCi-R7YF-uBrEMl
WARNING: Duplicate VG name rootvg: Existing AWwtva-U2mW-7oRJ-0UQv-DpJx-hdPF-emRwro (created here) takes precedence over 4uW3e3-EmFK-ZRy8-Higy-Bgpv-z8A0-3myyQr
WARNING: Duplicate VG name rootvg: Existing AWwtva-U2mW-7oRJ-0UQv-DpJx-hdPF-emRwro (created here) takes precedence over leZrPz-1Woo-k1vs-fRmx-LNst-ll5C-NpAGdd
PV VG Fmt Attr PSize PFree
/dev/mapper/mpathbp2 rootvg lvm2 a-- 34.78g 1.81g
/dev/mapper/mpathcp2 rootvg lvm2 a-- 34.78g 1.81g
/dev/mapper/mpathdp2 rootvg lvm2 a-- 34.78g 1.81g
/dev/mapper/mpathep2 rootvg lvm2 a-- 34.78g 1.81g
/dev/mapper/mpathfp1 appvg lvm2 a-- 104.97g 24.97g
/dev/mapper/mpathgp2 rootvg lvm2 a-- 34.78g 1.81g
/dev/mapper/mpathhp2 rootvg lvm2 a-- 34.78g 1.81g
/dev/mapper/mpathip1 appvg lvm2 a-- 104.97g 104.97g
/dev/mapper/mpathjp1 appvg lvm2 a-- 104.97g 104.97g
/dev/mapper/mpathkp1 appvg lvm2 a-- 124.97g 124.97g
/dev/mapper/mpathlp1 appvg lvm2 a-- 204.97g 204.97g
/dev/mapper/mpathmp1 appvg lvm2 a-- 134.97g 134.97g
/dev/sda2 rootvg lvm2 a-- 278.66g 221.69g
Note there are 6 guests on this host.
Environment
Red Hat Enterprise Linux
6.4
Virtualization -- KVM
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