ISC 2.2.1 + Fujitsu 1.2Gb drive + AHA 1740 EISA SCSI

[Conor P. Cahill]

cm at jet.uucp (colin manning) writes:
>The Fujitsu 2266 has 1029 cylinders. Although the fdisk table only
>caters for disks with up to 1024 cylinders, ISC's documentation says
>that it will use the additional cylinders, if you try to allocate
>them when partitioning the disk during installation. I had a mail
>msg some time back from someone who said that this does not work, and
>furthermore that by attempting to use cylinders >1024, the system will wrap
>around to cylinder 0 and clobber the start of your disk (which would
>be *serious*).

The wrap-around problem is not related to 1024 cylinders.  It is some 
function of disk size and as far as I know only happens on 1.2GB or 
higher drives.  Last I heard ISC knew about the problem and was working
on it, but that was months ago.  Perhaps it has been solved by now.

>Anyone else experienced such problems ? It would seem unlikely to me
>that ISC would state that such a facility works if there is a bug of
>this order of magnitude in it.

The facility for using more than 1024 cyls does work.  We have used it 
several times with no problems.  Our 680MB drives have 1543 cyls.

-- 
Conor P. Cahill            (703)430-9247        Virtual Technologies, Inc.
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