----- Original Message ----- > Here is my brain-teaser of the day. I'm wondering if somebody can > help me figure out how this works and why somebody would set things > up > this way. It's possible that I'm just confused, too. >
It looks like someone misconfigured it to me. Probably assumed they named sda as groundwork and sde groundworkp1, while not fully understanding multipathing. I'm just guessing but it would seem like things written to vgnagios will work fine if it only writes data to the first PV underneath. But as soon as it writes to the "second" PV, /dev/mapper/groundworkp1, it will start hosing data already written on the "first". I forget which path /dev/m* path I used to use, but I remember using the name that multipath gave it during setup such as dm-0 in fstab. LVM probably only looks at the UUID of the device you give it to give it's blessing and doesn't care about particulars. So since the partition has a different UUID than the drive itself, LVM thinks everything is dandy. Damion _______________________________________________ Tech mailing list [email protected] https://lists.lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
