Date: Fri, 06 Nov 1998 21:45:38 +0300 From: Garry Paul Cramins <gc9773@batelco.com.bh> To: freebsd-questions@FreeBSD.ORG Subject: JAZ 1GB: scsiformat parameters Message-ID: <364343D2.7A8D5970@batelco.com.bh>
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While setting up my jaz drive I destroyed the information (stored on
the disk) that contains the parameters for formatting my disk. The
"new" output of "scsiformat sd0" is:
iomega
jaz 1GB
J.86
Mode data length: 0
Medium type: 128
Device Specific Parameter: 2
Block descriptor length: 2
Density code: 131
Number of blocks: 24
Reserved: 105
Block length: 7302501
PS: 0
Reserved: 1
Page code: 39
Page length: 97
Number of Cylinders: 2105450
Number of Heads: 97
Starting Cylinder-Write Precompensation: 8003633
Starting Cylinder-Reduced Write Current: 4669984
Drive Step Rate: 8224
Landing Zone Cylinder: 2105376
Reserved: 8
RPL: 0
Rotational Offset: 32
Reserved: 32
Medium Rotation Rate: 18990
Reserved: 56
Reserved: 54
I know the cylinders/heads/sectors info but have no clue as to what
the proper parameters are for the other fields, and, as I only have one
disk (I use it to back up my hard drive) I cannot extract this
information from another. Does anyone have this information? I tried
iomega's website but they did not have this info online. Next
question: Once I have this information, how do I tell scsiformat to use
the new info for formatting the disk. I have edited mode pages (write
verify, etc.) but am uncertain as to how you might change the drive
parameters. Any help would be appreciated.
Garry Cramins
gc9773@batelco.com.bh
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