Broken LVM

[GyroTech]

I have been using an LVM spanning multiple drives just to dump files on 
for a while and it's been great. Unfortunately, one of the drives has 
died a death (not even BIOS detects it any more) and I can't figure out 
how I remove the PV from the VG :

# pvdisplay
   /dev/mapper/Error|lvm2|LVMDriveSpan|pv1: read failed after 0 of 4096 
at 0: Input/output error
   /dev/mapper/Error|lvm2|LVMDriveSpan|pv1: read failed after 0 of 4096 
at 123518189568: Input/output error
   /dev/mapper/Error|lvm2|LVMDriveSpan|pv1: read failed after 0 of 4096 
at 0: Input/output error
   Couldn't find device with uuid 'ZLFY1R-TA5z-gpY5-Yezh-0lxZ-47h6-du9VDm'.
   /dev/mapper/Error|lvm2|LVMDriveSpan|pv1: read failed after 0 of 4096 
at 0: Input/output error
   Couldn't find device with uuid 'ZLFY1R-TA5z-gpY5-Yezh-0lxZ-47h6-du9VDm'.
   /dev/mapper/Error|lvm2|LVMDriveSpan|pv1: read failed after 0 of 4096 
at 0: Input/output error
   /dev/mapper/Error|lvm2|LVMDriveSpan|pv1: read failed after 0 of 4096 
at 0: Input/output error
   Couldn't find device with uuid 'ZLFY1R-TA5z-gpY5-Yezh-0lxZ-47h6-du9VDm'.
   /dev/mapper/Error|lvm2|LVMDriveSpan|pv1: read failed after 0 of 4096 
at 0: Input/output error
   Couldn't find device with uuid 'ZLFY1R-TA5z-gpY5-Yezh-0lxZ-47h6-du9VDm'.
   --- Physical volume ---
   PV Name               /dev/mapper/hdd1
   VG Name               LVMDriveSpan
   PV Size               152.66 GB / not usable 0
   Allocatable           yes (but full)
   PE Size (KByte)       4096
   Total PE              39081
   Free PE               0
   Allocated PE          39081
   PV UUID               nc8g3X-d7SW-CPnO-7mpy-nS5N-VkVI-40ZLxv

   --- Physical volume ---
   PV Name               unknown device
   VG Name               LVMDriveSpan
   PV Size               115.04 GB / not usable 0
   Allocatable           yes (but full)
   PE Size (KByte)       4096
   Total PE              29449
   Free PE               0
   Allocated PE          29449
   PV UUID               ZLFY1R-TA5z-gpY5-Yezh-0lxZ-47h6-du9VDm

   --- Physical volume ---
   PV Name               /dev/mapper/hda6
   VG Name               LVMDriveSpan
   PV Size               31.71 GB / not usable 0
   Allocatable           yes (but full)
   PE Size (KByte)       4096
   Total PE              8118
   Free PE               0
   Allocated PE          8118
   PV UUID               JK9DZr-gZ6M-QgjY-2Nvl-DzDd-mMUU-0gq844

# vgremove LVMDriveSpan
   /dev/mapper/Error|lvm2|LVMDriveSpan|pv1: read failed after 0 of 4096 
at 0: Input/output error
   /dev/mapper/Error|lvm2|LVMDriveSpan|pv1: read failed after 0 of 4096 
at 123518189568: Input/output error
   /dev/mapper/Error|lvm2|LVMDriveSpan|pv1: read failed after 0 of 4096 
at 0: Input/output error
   Couldn't find device with uuid 'ZLFY1R-TA5z-gpY5-Yezh-0lxZ-47h6-du9VDm'.
   Couldn't find all physical volumes for volume group LVMDriveSpan.
   /dev/mapper/Error|lvm2|LVMDriveSpan|pv1: read failed after 0 of 4096 
at 0: Input/output error
   Couldn't find device with uuid 'ZLFY1R-TA5z-gpY5-Yezh-0lxZ-47h6-du9VDm'.
   Couldn't find all physical volumes for volume group LVMDriveSpan.
   /dev/mapper/Error|lvm2|LVMDriveSpan|pv1: read failed after 0 of 4096 
at 0: Input/output error
   /dev/mapper/Error|lvm2|LVMDriveSpan|pv1: read failed after 0 of 4096 
at 0: Input/output error
   Couldn't find device with uuid 'ZLFY1R-TA5z-gpY5-Yezh-0lxZ-47h6-du9VDm'.
   Couldn't find all physical volumes for volume group LVMDriveSpan.
   /dev/mapper/Error|lvm2|LVMDriveSpan|pv1: read failed after 0 of 4096 
at 0: Input/output error
   Couldn't find device with uuid 'ZLFY1R-TA5z-gpY5-Yezh-0lxZ-47h6-du9VDm'.
   Couldn't find all physical volumes for volume group LVMDriveSpan.
   Volume group "LVMDriveSpan" not found


The second device is obviously the one that failed and is actually 
/dev/hdc1 . Running pvremove /dev/hdc1 produces no output and doesn't 
change the results of pvdisplay so I doubt it's doing anything at all.
No data on the LVM matters, as it was just a temporary storage solution, 
but without being able to clear out the LVM data, I can't replace the 
faulty drive and re-create a new VG or LV as the two healthy partitons 
(/devhda6 and /dev/hdd1) both still want to belong to LVMDriveSpan.

Any thoughts on this??