Date: Thu, 30 May 2013 10:52:04 -0400 From: Douglas Gilbert <dgilbert@interlog.com> To: Riccardo Veraldi <riccardo.veraldi@gmail.com> Cc: freebsd-scsi@freebsd.org Subject: Re: troubles with Seagate (EMC2) disk Message-ID: <51A76794.2080500@interlog.com> In-Reply-To: <51A72605.4050303@gmail.com> References: <51A72605.4050303@gmail.com>
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On 13-05-30 06:12 AM, Riccardo Veraldi wrote: > Hello, > I have a Seagate ST350000 CLAR500 disk. > > it is attached to my Sun Blade 1000 running FreeBSD 9.1 > > I need to label it, create partition and move te root /usr/ var and swap from > the main boot disk which has corrupted blocks. > > so this disk will become my boot disk. > > the problem is that I cannot partition it or even access it in anyway > > dd: /dev/da6: Invalid argument > 1+0 records in > 0+0 records out > 0 bytes transferred in 0.000700 secs (0 bytes/sec) > > this is the disk information: > > da6 at isp0 bus 0 scbus2 target 1 lun 0 > da6: <SEAGATE ST350000 CLAR500 FDBD> Fixed Direct Access SCSI-3 device > da6: 100.000MB/s transfers WWNN 0x2000001862133c8d WWPN 0x2100001862133c8d > PortID 0xe4 > da6: Command Queueing enabled > da6: 476940MB (961745856 520 byte sectors: 255H 63S/T 59865C) > > the problem is that disk byte sectors are 520 and not 512 > > is there a way to reformat it to 512 byte sectors ? > > is there a way to make it usable ? > > the SCSI III disk has a FC - AL interface (Internal Sun Blade 1000 Caddy). In my sg3_utils package (see http://sg.danny.cz/sg/sg3_utils.html ) there is a utility called sg_format. If you are sure that you do not want the existing data on that disk, try: sg_format --format --size=512 /dev/da6 Doug Gilbert
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