Eduardo Grosclaude wrote: > > Ross, Nate, Tony, thanks for your promptly response > > > On Mon, Jul 28, 2008 at 2:51 PM, nate <centos at linuxpowered.net> wrote: > > > Eduardo Grosclaude wrote: > > > 4) Rebooted the installed system. Now "Duplicate PV" > shows at boot. Honestly > > > To me it sounds likely that the raid controller is shitty and > is presenting two sets of devices to the OS, one likely being > the "RAID" device and the other a more generic device(s). > > What does 'dmesg' say? Do you see more devices than you think > you should have on the system? > > dmesg says nothing about this, the message only appears at > console when booting or otherwise using the PVs: > > [root at myserver ~]# pvs > Found duplicate PV 8D7K2wg15HqD0l9HxZCz7QlDfpqJOhXT: using > /dev/sdb2 not /dev/sda2 > PV VG Fmt Attr PSize PFree > /dev/sdb2 VolGroup00 lvm2 a- 465,62G 0 > > [root at myserver ~]# lvs > Found duplicate PV 8D7K2wg15HqD0l9HxZCz7QlDfpqJOhXT: using > /dev/sdb2 not /dev/sda2 > LV VG Attr LSize Origin Snap% Move Log Copy% > LogVol00 VolGroup00 -wi-ao 150,00G > LogVol01 VolGroup00 -wi-ao 1,94G > LogVol02 VolGroup00 -wi-ao 313,69G > > > [root at myserver ~]# sfdisk -d > # tabla de particiones de /dev/sda > unit: sectors > > /dev/sda1 : start= 63, size= 208782, Id=83, bootable > /dev/sda2 : start= 208845, size=976543155, Id=8e > /dev/sda3 : start= 0, size= 0, Id= 0 > /dev/sda4 : start= 0, size= 0, Id= 0 > # tabla de particiones de /dev/sdb > unit: sectors > > /dev/sdb1 : start= 63, size= 208782, Id=83, bootable > /dev/sdb2 : start= 208845, size=976543155, Id=8e > /dev/sdb3 : start= 0, size= 0, Id= 0 > /dev/sdb4 : start= 0, size= 0, Id= 0 > > Awful--I expected to see just one device :P > > > There might be a disk from an old RAID1 set in there. > Don't think so, this machine was integrated here with new materials. > > Oops... system-config-lvm shows under 'Uninitialized entities': > /dev/sda > -> part 1 > -> part 2 > -> unpartitioned space > /dev/sdb > -> part 1 > -> unpartitioned space The sfdisk output looks OK, I think it's just an issue with system-config-lvm getting confused with the "leaky" sdb. > These shouldn't be appearing as two discs in the first > place-- but anaconda said I only had one unit... > Anyway, why the asymmetry? Did I screw the RAID volume > somehow? Or did I install plain on sda and this RAID never > worked as such? :P I think it's the on board RAID not abstracting the disks as it should. > The machine BIOS correctly describes the RAID volume at > start. Doesn't It smell like fake RAID? > Should I declare sdb invalid to the firmware program so as to > force resync? You could re-try the installation, or, hide /dev/sdb from lvm using filtering in lvm.conf. You can reboot with a live cd and run a checksum comparison on the volumes on each disk to verify if the RAID is working correctly. Maybe there is a BIOS option to hide drive 2? If you do a re-install and get the same result then you know it wasn't a mistake on your part though (unless you make it again!). -Ross ______________________________________________________________________ This e-mail, and any attachments thereto, is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution or copying of this e-mail, and any attachments thereto, is strictly prohibited. If you have received this e-mail in error, please immediately notify the sender and permanently delete the original and any copy or printout thereof.