/*
- * mdctl - manage Linux "md" devices aka RAID arrays.
+ * mdadm - manage Linux "md" devices aka RAID arrays.
*
- * Copyright (C) 2001 Neil Brown <neilb@cse.unsw.edu.au>
+ * Copyright (C) 2001-2002 Neil Brown <neilb@cse.unsw.edu.au>
*
*
* This program is free software; you can redistribute it and/or modify
* Australia
*/
-#include "mdctl.h"
+#include "mdadm.h"
#define REGISTER_DEV _IO (MD_MAJOR, 1)
#define START_MD _IO (MD_MAJOR, 2)
#define STOP_MD _IO (MD_MAJOR, 3)
-int Build(char *mddev, int mdfd, int chunk, int level,
+int Build(char *mddev, int mdfd, int chunk, int level, int layout,
int raiddisks,
- int subdevs, char *subdev[])
+ mddev_dev_t devlist, int assume_clean)
{
/* Build a linear or raid0 arrays without superblocks
* We cannot really do any checks, we just do it.
* SET_ARRAY_INFO, ADD_NEW_DISK, RUN_ARRAY
*
*/
+ int verbose = 0;
int i;
int vers;
struct stat stb;
- if (raiddisks != subdevs) {
- fprintf(stderr, Name ": requested %d devices in array but listed %d\n",
- raiddisks, subdevs);
- return 1;
- }
+ int subdevs = 0;
+ mddev_dev_t dv;
/* scan all devices, make sure they really are block devices */
- for (i=0; i<subdevs; i++) {
- if (stat(subdev[i], &stb)) {
+ for (dv = devlist; dv; dv=dv->next) {
+ if (stat(dv->devname, &stb)) {
fprintf(stderr, Name ": Cannot find %s: %s\n",
- subdev[i], strerror(errno));
+ dv->devname, strerror(errno));
return 1;
}
if ((stb.st_mode & S_IFMT) != S_IFBLK) {
fprintf(stderr, Name ": %s is not a block device.\n",
- subdev[i]);
+ dv->devname);
return 1;
}
+ subdevs++;
}
+ if (raiddisks != subdevs) {
+ fprintf(stderr, Name ": requested %d devices in array but listed %d\n",
+ raiddisks, subdevs);
+ return 1;
+ }
+
+ if (layout == UnSet)
+ switch(level) {
+ default: /* no layout */
+ layout = 0;
+ break;
+ case 10:
+ layout = 0x102; /* near=2, far=1 */
+ if (verbose)
+ fprintf(stderr,
+ Name ": layout defaults to n1\n");
+ break;
+ case 5:
+ case 6:
+ layout = map_name(r5layout, "default");
+ if (verbose)
+ fprintf(stderr,
+ Name ": layout defaults to %s\n", map_num(r5layout, layout));
+ break;
+ case LEVEL_FAULTY:
+ layout = map_name(faultylayout, "default");
+
+ if (verbose)
+ fprintf(stderr,
+ Name ": layout defaults to %s\n", map_num(faultylayout, layout));
+ break;
+ }
+
+
vers = md_get_version(mdfd);
/* looks Ok, go for it */
- if (vers >= 90000) {
+ if (vers >= 9000) {
mdu_array_info_t array;
array.level = level;
array.size = 0;
array.raid_disks = raiddisks;
array.md_minor = 0;
if (fstat(mdfd, &stb)==0)
- array.md_minor = MINOR(stb.st_rdev);
- array.not_persistent = 0;
+ array.md_minor = minor(stb.st_rdev);
+ array.not_persistent = 1;
array.state = 0; /* not clean, but no errors */
+ if (assume_clean)
+ array.state |= 1;
array.active_disks = raiddisks;
array.working_disks = raiddisks;
array.spare_disks = 0;
array.failed_disks = 0;
+ if (chunk == 0)
+ chunk = 64;
array.chunk_size = chunk*1024;
+ array.layout = layout;
if (ioctl(mdfd, SET_ARRAY_INFO, &array)) {
fprintf(stderr, Name ": SET_ARRAY_INFO failed for %s: %s\n",
mddev, strerror(errno));
}
}
/* now add the devices */
- for (i=0; i<subdevs; i++) {
- if (stat(subdev[i], &stb)) {
+ for ((i=0), (dv = devlist) ; dv ; i++, dv=dv->next) {
+ if (stat(dv->devname, &stb)) {
fprintf(stderr, Name ": Wierd: %s has disappeared.\n",
- subdev[i]);
+ dv->devname);
goto abort;
}
- if ((stb.st_rdev & S_IFMT)!= S_IFBLK) {
+ if ((stb.st_mode & S_IFMT)!= S_IFBLK) {
fprintf(stderr, Name ": Wierd: %s is no longer a block device.\n",
- subdev[i]);
+ dv->devname);
goto abort;
}
- if (vers> 90000) {
+ if (vers>= 9000) {
mdu_disk_info_t disk;
disk.number = i;
disk.raid_disk = i;
disk.state = 6;
- disk.major = MAJOR(stb.st_rdev);
- disk.minor = MINOR(stb.st_rdev);
+ disk.major = major(stb.st_rdev);
+ disk.minor = minor(stb.st_rdev);
if (ioctl(mdfd, ADD_NEW_DISK, &disk)) {
fprintf(stderr, Name ": ADD_NEW_DISK failed for %s: %s\n",
- subdev[i], strerror(errno));
+ dv->devname, strerror(errno));
goto abort;
}
} else {
if (ioctl(mdfd, REGISTER_DEV, &stb.st_rdev)) {
- fprintf(stderr, Name ": REGISTER_DEV failed for %s.\n",
- subdev[i], strerror(errno));
+ fprintf(stderr, Name ": REGISTER_DEV failed for %s: %s.\n",
+ dv->devname, strerror(errno));
goto abort;
}
}
}
/* now to start it */
- if (vers > 90000) {
+ if (vers >= 9000) {
mdu_param_t param; /* not used by syscall */
- if (ioctl(mdfd, RUN_ARRAY, param)) {
+ if (ioctl(mdfd, RUN_ARRAY, ¶m)) {
fprintf(stderr, Name ": RUN_ARRAY failed: %s\n",
strerror(errno));
goto abort;
}
} else {
- int arg;
+ unsigned long arg;
arg=0;
while (chunk > 4096) {
arg++;
return 0;
abort:
- if (vers > 900000)
+ if (vers >= 9000)
ioctl(mdfd, STOP_ARRAY, 0);
else
ioctl(mdfd, STOP_MD, 0);
projects / thirdparty / mdadm.git / blobdiff