Hi Maria,
These PV conflicts you have, can these be minor major related?
It is common to encounter LVM disk conflicts using snapshot techniques, where special attentions has to be done with the minor major numbers, to avoid such conflicts.
Perhaps you can try exporting / importing the vg, to resolve the issues?
At spictera we created a way to take software based snapshots, which does not have such conflicts.
The snapshots are stored on the IBM Spectrum Protect backup server, and does not require a special hardware.
The total number of retentions is limited to what you set in the Spectrum Protect backup server retention policy, and are not limited to what the hardware can support.
The snapshot can be provisioned back to any location, at any time, using same or new structure.
The snapshot revert to previous snapshot using normal OS snapshot revert mechanism.
IBM - Spictera Brick - Instant Recovery for Spectrum ProtectRegards Tomas
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Tomas Dalebjörk
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Original Message:
Sent: Wed January 05, 2022 08:22 AM
From: MARIA JOSE RODRIGUEZ CANALES
Subject: FCTOOL and LVM causing trouble
Hello, it is my first time using FCtool to interact between SAP HANA and a Flash System. So far flashcopy backups are running successfully, but when I try to use the copy function to clone one system to another one, I am getting trouble with LVM in the target system. FlashCopy consistency group is created as well as flashcopy relationships. Once the flashcopy has ended, I can see in the Flash System that target flashcopy volumes are attached to the target system but when the fcagent tries to activate the VG it reports errors because of duplicated PV ids. After talking to the Linux expert, he tells me that the duplicated PVs are pointing to the same device because of the use of LVM.
Any help will be thank. I am completely lost.
Thanks
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MARIA JOSE RODRIGUEZ CANALES
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