Eduardo Grosclaude wrote:
Ross, Nate, Tony, thanks for your promptly response
On Mon, Jul 28, 2008 at 2:51 PM, nate centos@linuxpowered.net wrote:
Eduardo Grosclaude wrote:
- 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@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@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@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
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