I recently bought a 3 TB harddisk which I inserted into a external USB drive enclosure and connected it to linux debian.
Unfortunately it now shows up 2 separate physical drives: one with 2.19TB and one with 801 GB.
I have no idea why.
I upgraded to wheezy and kernel 3.2.48 but no difference.
Here is my dmesg output:
[ 4133.260187] usb 2-4: new high-speed USB device number 2 using ehci_hcd
[ 4133.414995] usb 2-4: New USB device found, idVendor=1bcf, idProduct=0c31
[ 4133.415003] usb 2-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 4133.415008] usb 2-4: Product: USB to Serial-ATA bridge
[ 4133.415012] usb 2-4: Manufacturer: Sunplus Innovation Technology
[ 4133.582155] Initializing USB Mass Storage driver...
[ 4133.582259] scsi8 : usb-storage 2-4:1.0
[ 4133.582316] usbcore: registered new interface driver usb-storage
[ 4133.582317] USB Mass Storage support registered.
[ 4134.582266] scsi 8:0:0:0: Direct-Access Generic External 0200 PQ: 0 ANSI: 4
[ 4134.584004] scsi 8:0:0:1: Direct-Access Generic External 0200 PQ: 0 ANSI: 4
[ 4134.584682] sd 8:0:0:0: Attached scsi generic sg6 type 0
[ 4134.584887] sd 8:0:0:1: Attached scsi generic sg7 type 0
[ 4134.586143] sd 8:0:0:0: [sdg] 4294967295 512-byte logical blocks: (2.19 TB/1.99 TiB)
[ 4134.587706] sd 8:0:0:1: [sdh] 1565565872 512-byte logical blocks: (801 GB/746 GiB)
[ 4134.594994] sd 8:0:0:0: [sdg] Write Protect is off
[ 4134.595005] sd 8:0:0:0: [sdg] Mode Sense: 38 00 00 00
[ 4134.601930] sd 8:0:0:1: [sdh] Write Protect is off
[ 4134.601933] sd 8:0:0:1: [sdh] Mode Sense: 38 00 00 00
[ 4134.608790] sd 8:0:0:0: [sdg] No Caching mode page present
[ 4134.612126] sd 8:0:0:0: [sdg] Assuming drive cache: write through
[ 4134.615642] sd 8:0:0:1: [sdh] No Caching mode page present
[ 4134.619021] sd 8:0:0:1: [sdh] Assuming drive cache: write through
[ 4134.631010] sd 8:0:0:0: [sdg] No Caching mode page present
[ 4134.634342] sd 8:0:0:0: [sdg] Assuming drive cache: write through
[ 4134.652110] sd 8:0:0:1: [sdh] No Caching mode page present
[ 4134.655459] sd 8:0:0:1: [sdh] Assuming drive cache: write through
[ 4134.687317] sdg: unknown partition table
[ 4134.687749] sdh: unknown partition table
[ 4134.710370] sd 8:0:0:0: [sdg] No Caching mode page present
[ 4134.713674] sd 8:0:0:0: [sdg] Assuming drive cache: write through
[ 4134.716994] sd 8:0:0:0: [sdg] Attached SCSI disk
[ 4134.717241] sd 8:0:0:1: [sdh] No Caching mode page present
[ 4134.720764] sd 8:0:0:1: [sdh] Assuming drive cache: write through
[ 4134.720768] sd 8:0:0:1: [sdh] Attached SCSI disk
Now I could just create two separate partitions and add them to one lvm assembly but since I have no idea why this is happening I first want to know why.