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Full Discussion: HP-UX 11 - disk errors
Operating Systems HP-UX HP-UX 11 - disk errors Post 29391 by Optimus_P on Friday 4th of October 2002 05:26:25 PM
Old 10-04-2002
i thought it was only volume groups that can not be reduced. or was that only logical groups?

i really wanna say its the VG that is a static. IE: you can add and swap disks but you cant make it smaller w/ out removeing it and recreateing it.


mmmmmm makes me go back to my aix documention. i know its not hp-ux but its the only other os i have that uses a "smarter disk management system"
 

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WREN(3) 						     Library Functions Manual							   WREN(3)

NAME
wren, ata - hard disk interface SYNOPSIS
bind #H[drive] /dev bind #w[target[.lun]] /dev /dev/hd0disk /dev/hd0partition /dev/sd0disk /dev/sd0partition ... DESCRIPTION
The hard disk interfaces (wren, #w, is a SCSI disk; ata, #H, is an IDE or ATA disk) serve a one-level directory giving access to the hard disk partitions. The parameter to attach defines the numerical SCSI target and logical unit number or the IDE drive number to access. Both default to zero. Each partition name is prefixed by hd and the numeric drive identifier. The partition always exists and covers the entire disk. The size of each partition as reported by stat(2) is the number of bytes in the partition, so the size of is the size of the entire disk. The partition also always exists; it is the last block on the disk for SCSI, second to last for IDE. If it contains valid partition data, those partitions will be visible as well. Every time the device is bound, the partitions are updated to reflect any changes in the parti- tion file. The format of the partition file is the string plan9 partitions on a line, followed by partition specifications, one per line, consisting of a name and textual strings for the block start and limit for each partition on the disk. The program prep(8) writes the partition table for the disk; its use is preferred to writing it by hand. SEE ALSO
prep(8), scsi(3) SOURCE
/sys/src/9/port/devwren.c /sys/src/9/pc/devata.c WREN(3)
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