Re: How to create a large filesystem?

[jnemeth%victoria.tc.ca@localhost (John Nemeth)]

On Jul 14, 11:20am, Simon Burge wrote:
} Martti Kuparinen wrote:
} 
} > How can I create (preferably only one large 5+ TB) filesystem on this disk?
} > 
} > NetBSD 5.0_RC2 (GENERIC) #1: Fri Feb 20 04:49:20 EET 2009
} > ...
} > sd0 at scsibus0 target 0 lun 0: <DELL, PERC 5/i, 1.03> disk fixed
} > sd0: fabricating a geometry
} > sd0: 5586 GB, 5720064 cyl, 64 head, 32 sec, 512 bytes/sect x 11714691072 
} > sectors
} > sd0: fabricating a geometry
} > sd0: mbr partition exceeds disk size
} > sd0: GPT GUID: 95027669-f71d-4a6f-9312-a1c4e5746c7e
} > dk0 at sd0: 4d4bdea5-b403-4de4-bf43-891756465be0
} > 
} > # disklabel sd0
} > a: 3124756480         0     4.2BSD      0     0    0
} > d: 3124756480         0     unused      0     0    0
} > # disklabel dk0
} > disklabel: ioctl DIOCGDINFO: Inappropriate ioctl for device
} > 
} > # newfs /dev/sd0a
} > newfs: /dev/sd0a: open for read: Device busy
} > # newfs /dev/sd0d
} > newfs: /dev/sd0d: open for write: Device busy
} > # newfs /dev/dk0
} > newfs: /dev/dk0: open for write: Device busy
} 
} I don't have access to the systems anymore, but you should be able to
} newfs the raw device (rsd0d) directly.  You may have to use a -s param
} to force the correct size.  Something like:
} 
}       newfs -s 3124756480 /dev/rsd0d

     He could, but then he should probably do 'dkctl delwedge dk0' and
'gpt destroy sd0' first to get rid of the dk0 and the gpt on sd0.

} might work.  The largest FS I used this with was about 27TB.  I never
} did get to play with wedges though...

     Wedges aren't that difficult, but the process probably isn't
documented very well.  You do need to read the man pages for gpt and
dkctl.

}-- End of excerpt from Simon Burge