I dont think it is hardware failure. These are brand new servers, and I got the same behaviour on all of them I installed. It is not a clicking noise, rather a very fast "crackling" noise. We are using RAID1, so the different speeds of the drives can be a problem. On the same machine I tried to create a file system and copy data with an without LVM. I got the noise only when I use LVM. I suspect stripping over the same disk could casue something like this, but I have one PV per physical disk, and dont specify the -i and -I option when I do lvcreate. I will do some further tests. Thanks for your time, Norbert Vegh > That nasty click is an IDE drive resetting itself. Failure may be > moments away. In the hardware RAID you described, it may be a bit > harder to isolate which drive is dying ... you may actually have to > get your head next to each one to find it. > > The problem then is that you need to evacuate that PV (which may be the > whole array from your description of the setup) and replace the faulty > drive. You may be able to take less drastic action, depending upon the > capabilities of your RAID card. > > If you are mirroring, you can also get this if one of the drives in the > mirror is slower than the other (also happens if you are striping, but > you said that you weren't). > > While drives can live for months this way, they drag your system > performance to the ground and eventually fail anyway. Get out > while you can still save your data! > > > Michael Kellen > _______________________________________________ linux-lvm mailing list linux-lvm@sistina.com http://lists.sistina.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
