Oracle Linux LVM issue

[nyck]

Hello,

I have been rebuilding an R900 this morning and have installed oracle linux 6.3, at the raid level there was sda which was a mirror and sdb a raid 5 setup. So during the install I just setup sda with LVM and left sdb alone as I always tend to do when I install Linux. So now the server is up and running and looking good apart from the fact you cannot see sdb when you run a pvs or a pvscan:-

pvs
PV VG Fmt Attr PSize PFree
/dev/sda2 rootvg lvm2 a-- 135.93g 23.93g

[root@lonlin4 ~]# pvscan
PV /dev/sda2 VG rootvg lvm2 [135.93 GiB / 23.93 GiB free]
Total: 1 [135.93 GiB] / in use: 1 [135.93 GiB] / in no VG: 0 [0 ]

So I ran an fdisk –l /dev/sdb and it’s there:-

fdisk -l /dev/sdb

Disk /dev/sdb: 1999.3 GB, 1999307276288 bytes
255 heads, 63 sectors/track, 243068 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000cb143

Device Boot Start End Blocks Id System
/dev/sdb1 1 243069 1952447488 fb VMware VMFS

Anyway I decide to run a pvcreate against it and I get the following error:-

pvcreate -ff /dev/sdb
Device /dev/sdb not found (or ignored by filtering).

So a bit stuck and wondering if you have any ideas on the above?

 

[iggsterman]

pvcreate /dev/sdb1
for WHOLE disk, like you are trying to do, you would have to zero out the disk with dd. I do not see any reason to use the whole disk, but YMMV.
Also, I'd lose -ff flag.