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Re: port-alpha/48697: Sysinst compute illegal disk geometry and newfs is bound to fail.
The following reply was made to PR port-alpha/48697; it has been noted by GNATS.
From: "Michael L. Hitch" <mhitch%montana.edu@localhost>
To: "Naruaki.Etomi" <nullnilaki%gmail.com@localhost>
Subject: Re: port-alpha/48697: Sysinst compute illegal disk geometry and
newfs is bound to fail.
Date: Wed, 2 Apr 2014 14:23:35 -0600 (MDT)
On Thu, 3 Apr 2014, Naruaki.Etomi wrote:
> sd0 at scsibus0 target 1 lun 0: <FUJITSU, MAU3073NC, 2904> disk fixed
> sd0: 69809 MB, 49158 cyl, 4 head, 727 sec, 512 bytes/sect x 142969680 sectors
> sd0: sync (12.50ns offset 127), 16-bit (160.000MB/s) transfers, tagged
> # disklabel sd0
> # /dev/rsd0c:
> type: SCSI
> disk: MAU3073NC
> bytes/sector: 512
> sectors/track: 863
> tracks/cylinder: 4
> sectors/cylinder: 3452
> cylinders: 49158
> total sectors: 142969680
> rpm: 15000
> interleave: 1
> trackskew: 216
> cylinderskew: 111
> headswitch: 0 # microseconds
> track-to-track seek: 0 # microseconds
> drivedata: 0
Ah, it looks like maybe sysinst is computing the size of the disk by
multiplying the sectors/cylinder times cylinders - but the sectors/track
in the disk label is not correct. The drive reports 727 sectors/track.
If sysinst had used the total sectors from the disklabel, it would have
been ok. I would presume that Tru64 had set the sectors/track and
sectors/cylinder to those values.
Michael L. Hitch mhitch%montana.edu@localhost
Operations Consulting, Information Technology Center
Montana State University, Bozeman, MT USA
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