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the number of accessible cylinders less than the all cylinders

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pissallio

IS-IT--Management
Oct 2, 2004
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# prtvtoc /dev/rdsk/c0t1d0s2
* /dev/rdsk/c0t1d0s2 partition map
*
* Dimensions:
* 512 bytes/sector
* 248 sectors/track
* 19 tracks/cylinder
* 4712 sectors/cylinder
* 7508 cylinders
* 7506 accessible cylinders

The number of accessbile cylinders is 7506 , less than 7508.
why ? Where the remaining 2 cylinders go ?
 
As far as I know, Solaris reserves two cylinders for it's own use, operations management, housekeeping etc.
 
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