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-   -   Configure LVM as mirrored AND linear? (http://www.linuxquestions.org/questions/linux-software-2/configure-lvm-as-mirrored-and-linear-897415/)

charlweed 08-15-2011 10:48 AM

Configure LVM as mirrored AND linear?
 
I'm looking for Magical Wonder Volumes.
I want to be able to add a physical drive to an existing filesystem, and PRESTO! That filesystem has more storage and/or redundancy. When one of the physical drives eventually fail, no problem, I’ve lost some redundancy, I just have to install a new drive before another one fails.
Let’s assume I have 4 physical drives.
Please, *What Is This Configuration? *

I’ve read "http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html-single/Logical_Volume_Manager_Administration/index.html"

But I am unclear if I can make a logical volume that is mirrored and linear.
Thank you so much

BTW
The last time I tried software RAID 1 (dm-x) under lvm, it was very fragile. Systemd could not start it, and then an update to mdadm put a stake through its heart. So I know that does not work.
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