swapctl.2 (2010 09)

swapctl(2) swapctl(2)

exit(1);

}

/* list the swap device configured above */

swent.ste_path = path;

swt.swt_n = 1;

swt.swt_flags = SW_PRIMARY | SW_NEXTBOOT;

swt.swt_ent = &swent;

rv = swapctl(SC_LIST, (void *)&swt);

if (rv != 1) { /* returns the number of swap devices returned */

printf("swapctl/SC_LIST returned: %d \n", rv);

perror("swapctl/SC_LIST failed");

exit(2);

}

printf("Primary swap for next boot: %s \n", swent.ste_path);

/* Remove the above configured primary swap */

swp.sr_flag = SW_PRIMARY | SW_NEXTBOOT;

swp.sr_name = path; /* same path as used for SC_ADD */

swp.sr_start = 0; /* same start as used for SC_ADD */

swp.sr_length = 0; /* same length as used for SC_ADD */

swp.sr_priority = 1;

rv = swapctl(SC_REMOVE, (void *)&swp);

if (rv) {

perror("swapctl/SC_REMOVE failed");

exit(3);

}

return 0;

}

WARNINGS

If swapctl() is used for conﬁguring primary swap, other methods for conﬁguring primary swap like

lvlnboot, vxvmboot, and system conﬁguration ﬁles (see lvlnboot (1M), vxvmboot (1M), and system(4)),

and PA HP-UX boot loader mechanism will become ineffective. In other words, if a device is conﬁgured

for primary swap using

swapctl(), then other device(s) that are conﬁgured for primary swap using the

above mentioned methods will not be effective.

The

lvlnboot, vxvmboot, and system conﬁguration ﬁle methods for conﬁguring swap are deprecated

and will be obsoleted in future releases.

AUTHOR

swapctl() was developed by HP.