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author	svn <svn@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>	2009-02-12 15:03:32 +0000
committer	svn <svn@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>	2009-02-12 15:03:32 +0000
commit	f8811ab131263f01a9205fe074dbcf526c736fcf (patch)
tree	8840bc1c9408a9b1858554755a4b1ea9f1f11a49 /sample/testunit
parent	891a4f7620fb5331b9b4dfe162cf0d5477419125 (diff)

* 2009-02-13

git-svn-id: http://svn.ruby-lang.org/repos/ruby/branches/ruby_1_9_1@22266 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

Diffstat (limited to 'sample/testunit')

0 files changed, 0 insertions, 0 deletions

/* * mdadm - manage Linux "md" devices aka RAID arrays. * * Copyright (C) 2001-2002 Neil Brown <neilb@cse.unsw.edu.au> * * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * Author: Neil Brown * Email: <neilb@cse.unsw.edu.au> * Paper: Neil Brown * School of Computer Science and Engineering * The University of New South Wales * Sydney, 2052 * Australia */ #include "mdadm.h" #include "dlink.h" #if ! defined(__BIG_ENDIAN) && ! defined(__LITTLE_ENDIAN) #error no endian defined #endif #include "md_u.h" #include "md_p.h" int Examine(mddev_dev_t devlist, int brief, int scan, int SparcAdjust) { /* Read the raid superblock from a device and * display important content. * * If cannot be found, print reason: too small, bad magic * * Print: * version, ctime, level, size, raid+spare+ * prefered minor * uuid * * utime, state etc * * If (brief) gather devices for same array and just print a mdadm.conf line including devices= * if devlist==NULL, use conf_get_devs( */ int fd; time_t atime; mdp_super_t super; int d; char *c; int rv = 0; int err; int spares = 0; struct array { mdp_super_t super; void *devs; struct array *next; } *arrays = NULL; for (; devlist ; devlist=devlist->next) { fd = open(devlist->devname, O_RDONLY); if (fd < 0) { if (!scan) fprintf(stderr,Name ": cannot open %s: %s\n", devlist->devname, strerror(errno)); err = 1; } else { err = load_super(fd, &super); close(fd); } if (err && (brief||scan)) continue; if (err) rv =1; switch(err) { case 1: fprintf(stderr, Name ": cannot find device size for %s: %s\n", devlist->devname, strerror(errno)); continue; case 2: /* fprintf(stderr, Name ": %s is too small for md: size is %ld sectors\n", devlist->devname, size); */ fprintf(stderr, Name ": %s is too small for md\n", devlist->devname); continue; case 3: fprintf(stderr, Name ": Cannot seek to superblock on %s: %s\n", devlist->devname, strerror(errno)); continue; case 4: fprintf(stderr, Name ": Cannot read superblock on %s\n", devlist->devname); continue; case 5: fprintf(stderr, Name ": No super block found on %s (Expected magic %08x, got %08x)\n", devlist->devname, MD_SB_MAGIC, super.md_magic); continue; case 6: fprintf(stderr, Name ": Cannot interpret superblock on %s - version is %d\n", devlist->devname, super.major_version); continue; } /* Ok, its good enough to try, though the checksum could be wrong */ if (brief) { struct array *ap; char *d; for (ap=arrays; ap; ap=ap->next) { if (compare_super(&ap->super, &super)==0) break; } if (!ap) { ap = malloc(sizeof(*ap)); ap->super = super; ap->devs = dl_head(); ap->next = arrays; arrays = ap; } d = dl_strdup(devlist->devname); dl_add(ap->devs, d); } else { printf("%s:\n",devlist->devname); printf(" Magic : %08x\n", super.md_magic); printf(" Version : %02d.%02d.%02d\n", super.major_version, super.minor_version, super.patch_version); if (super.minor_version >= 90) printf(" UUID : %08x:%08x:%08x:%08x\n", super.set_uuid0, super.set_uuid1, super.set_uuid2, super.set_uuid3); else printf(" UUID : %08x\n", super.set_uuid0); atime = super.ctime; printf(" Creation Time : %.24s\n", ctime(&atime)); c=map_num(pers, super.level); printf(" Raid Level : %s\n", c?c:"-unknown-"); if (super.level <= 0) printf(" Device Size : %u%s\n", super.size, human_size((long long)super.size<<10)); printf(" Raid Devices : %d\n", super.raid_disks); printf(" Total Devices : %d\n", super.nr_disks); printf("Preferred Minor : %d\n", super.md_minor); printf("\n"); atime = super.utime; printf(" Update Time : %.24s\n", ctime(&atime)); printf(" State : %s\n", (super.state&(1<<MD_SB_CLEAN))?"clean":"dirty"); printf(" Active Devices : %d\n", super.active_disks); printf("Working Devices : %d\n", super.working_disks); printf(" Failed Devices : %d\n", super.failed_disks); printf(" Spare Devices : %d\n", super.spare_disks); if (calc_sb_csum(&super) == super.sb_csum) printf(" Checksum : %x - correct\n", super.sb_csum); else printf(" Checksum : %x - expected %lx\n", super.sb_csum, calc_sb_csum(&super)); if (SparcAdjust) { /* 2.2 sparc put the events in the wrong place * So we copy the tail of the superblock * up 4 bytes before continuing */ __u32 *sb32 = (__u32*)&super; memcpy(sb32+MD_SB_GENERIC_CONSTANT_WORDS+7, sb32+MD_SB_GENERIC_CONSTANT_WORDS+7+1, (MD_SB_WORDS - (MD_SB_GENERIC_CONSTANT_WORDS+7+1))*4); printf (" --- adjusting superblock for 2.2/sparc compatability ---\n"); } printf(" Events : %d.%d\n", super.events_hi, super.events_lo); if (super.events_hi == super.cp_events_hi && super.events_lo == super.cp_events_lo && super.recovery_cp > 0 && (super.state & (1<<MD_SB_CLEAN)) == 0 ) printf("Sync checkpoint : %d KB (%d%%)\n", super.recovery_cp/2, super.recovery_cp/(super.size/100*2)); printf("\n"); if (super.level == 5) { c = map_num(r5layout, super.layout); printf(" Layout : %s\n", c?c:"-unknown-"); } if (super.level == 10) printf(" Layout : near=%d, far=%d\n", super.layout&255, (super.layout>>8) & 255); switch(super.level) { case 0: case 4: case 5:


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