Jayroller

I'm having some problem trying to convert HP SAS drive from 520 to 512 block size using sg_format, Make:HP Model:HMRP4000S can anyone see where I'm going wrong? root@Tower:~# sg_format -v --fmtpinfo=0 --format --size=512 /dev/sg3 HGST HMRP4000S5xnN7.2 3P00 peripheral_type: disk [0x0] PROTECT=1 << supports protection information>> Unit serial number: PBHR336X LU name: 5000cca03b608d44 mode sense (10) cdb: 5a 00 01 00 00 00 00 00 fc 00 Mode Sense (block descriptor) data, prior to changes: Mode sense number of blocks maxed out, set longlba mode sense (10) cdb: 5a 10 01 00 00 00 00 00 fc 00 Mode Sense (block descriptor) data, prior to changes: <<< longlba flag set (64 bit lba) >>> Number of blocks=7814037168 [0x1d1c0beb0] Block size=520 [0x208] mode select (10) cdb: 55 11 00 00 00 00 00 00 22 00 mode select (10): transport: Host_status=0x03 [DID_TIME_OUT] Driver_status=0x00 [DRIVER_OK] MODE SELECT command: Sense category: -1 root@Tower:~# any help would be great.