HP-UX Reference (11i v3 07/02) - 1M System Administration Commands A-M (vol 3)

i
idisk(1M) idisk(1M)
(Integrity Systems Only)
2
EFI 100MB
HPUX 100%
The first entry specifies the number of partitions to create. The second specifies an EFI partition of 100
megabytes. The last entry specifies a HPUX partition consisting of all the remaining space on the disk
after the EFI partition has been created.
When creating partitions, the device file name must be that of the whole disk. Legacy device files must not
have any partition number bits set in the minor number. For legacy disk devices, the last eight bits of the
minor number represent the option bits.
For Integrity system disks, the last four option bits are used to indicate the partition number. Since there
are only four bits for partition number, only one to fifteen partitions are supported. For example, a device
node with a minor number of 0x008001 would indicate a disk at target eight, partition number one. A
minor number of 0x00500F would indicate a disk at target 5 partition fifteen. A minor number with no par-
tition bits set would indicate the whole disk (for example, 0x008000 would be the same disk as above but
represent the whole disk and not a partition).
Persistent device special files do not use or contain minor number information. A detailed description on
persistent device special files can be found in intro(7). Note: For partitions created by
idisk, device spe-
cial files must be created for each legacy hardware path to the disk and for the LUN hardware path using
insf or mksf (see intro(7) for details on legacy and agile modes). If legacy mode is disabled (see the
description of the -L option in rmsf(1M)), device special files must only be created for the LUN hardware
path.
Note
idisk has been ported to Windows NT 4.0 and 2000.
RETURN VALUE
Exit values are:
0 Successful completion.
>0 Error condition occurred.
EXAMPLES
Create the partitions specified in the above description file, printing only the primary partition information:
idisk -w -p -f ia64dsk.dat /dev/rdsk/c1t4d0
Create the partitions specified in the above description file, printing only the primary partition information
using a persistent device special file (see intro(7)):
idisk -w -p -f ia64dsk.dat /dev/rdisk/disk7
Create the partitions specified in the above description file, printing all available information (default),
redirecting input from stdin:
idisk -w -f - /dev/rdsk/c1t4d0 < ia64dsk.dat
Only read the disk, printing all tables (default) on the disk:
idisk /dev/rdsk/c1t4d0
Get the first and last usable block for partitioning on the disk:
idisk -b /dev/rdsk/c1t4d0
Destroy all partition information on the disk:
idisk -R /dev/rdsk/c1t4d0
Restore partition information from either a good primary or alternate header or table to the header or table
that is bad:
idisk -w -r /dev/rdsk/c1t4d0
AUTHOR
idisk was developed by HP.
324 Hewlett-Packard Company − 2 − HP-UX 11i Version 3: February 2007