I'm trying to create 45 LVM snapshots on one of my dev machines. I have about 7TB of disk to work with, but I keep having wierd issues. I can't seem to make more than 30 snapshots. At about 15-20 snapshots they stop being created reliably and as I get to 30 snapshots I stop getting snapshots and start getting COW table sized logical volumes that are in no way snapshots. Some of these snapshots cause kernel panics on RHEL 5 when I try to remove them. If anyone wants to take a look, I have included a script that reproduces the issue. It works on both RHEL 5 and Ubuntu 7.04. The script only requires a few gigabytes of storage, so I don't think the problem has to do with my large volume of storage. I filed a support ticket with redhat, but I figured I'd float it here to see if anyone has any suggestions/experience. Shaun Kruger
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