Hello, With the command "mount -t gfs /dev/sd6 /mnt " on Node1 and Node2 I get 2 different errors. Node 1 : error "mount:/dev/sd6 already mounted or /mnt busy" Node 2 : error "mount:permission denied" Find the strace of Node1 below. /dev/sda6 is not mounted anywhere else, Nor is it in the /etc/ftab. /mnt is not mounted. Do help me on this Thanks Shailesh Strace give the follwoing dump : execve("/bin/mount", ["mount", "-t", "gfs", "/dev/sda6", "/root/10.10.20.49/"], [/* 23 vars */]) = 0 uname({sys="Linux", node="localhost.localdomain", ...}) = 0 brk(0) = 0x986e000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=130890, ...}) = 0 old_mmap(NULL, 130890, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7fd1000 close(3) = 0 open("/lib/tls/libc.so.6", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\320\216"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=1454802, ...}) = 0 old_mmap(0x854000, 1223900, PROT_READ|PROT_EXEC, MAP_PRIVATE| MAP_DENYWRITE, 3, 0) = 0x854000 old_mmap(0x979000, 16384, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED| MAP_DENYWRITE, 3, 0x124000) = 0x979000 old_mmap(0x97d000, 7388, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED| MAP_ANONYMOUS, -1, 0) = 0x97d000 close(3) = 0 old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7fd0000 mprotect(0x979000, 4096, PROT_READ) = 0 mprotect(0x84b000, 4096, PROT_READ) = 0 set_thread_area({entry_number:-1 -> 6, base_addr:0xb7fd0aa0, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0 munmap(0xb7fd1000, 130890) = 0 brk(0) = 0x986e000 brk(0x988f000) = 0x988f000 open("/usr/lib/locale/locale-archive", O_RDONLY|O_LARGEFILE) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=48521008, ...}) = 0 mmap2(NULL, 2097152, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7dd0000 close(3) = 0 umask(022) = 022 open("/dev/null", O_RDWR|O_LARGEFILE) = 3 close(3) = 0 getuid32() = 0 geteuid32() = 0 lstat64("/etc/mtab", {st_mode=S_IFREG|0644, st_size=299, ...}) = 0 stat64("/sbin/mount.gfs", 0xbfe18ab0) = -1 ENOENT (No such file or directory) rt_sigprocmask(SIG_BLOCK, ~[TRAP SEGV RTMIN RT_1], NULL, 8) = 0 mount("/dev/sda6", "/root/10.10.20.49/", "gfs", MS_MGC_VAL, NULL) = -1 EBUSY (Device or resource busy) rt_sigprocmask(SIG_UNBLOCK, ~[TRAP SEGV RTMIN RT_1], NULL, 8) = 0 open("/usr/share/locale/locale.alias", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=2528, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7dcf000 read(3, "# Locale name alias data base.\n#"..., 4096) = 2528 read(3, "", 4096) = 0 close(3) = 0 munmap(0xb7dcf000, 4096) = 0 open("/usr/share/locale/en_US.UTF-8/LC_MESSAGES/util-linux.mo", O_RDONLY) = -1 ENOENT (No such file or directory) open("/usr/share/locale/en_US.utf8/LC_MESSAGES/util-linux.mo", O_RDONLY) = -1 ENOENT (No such file or directory) open("/usr/share/locale/en_US/LC_MESSAGES/util-linux.mo", O_RDONLY) = -1 ENOENT (No such file or directory) open("/usr/share/locale/en.UTF-8/LC_MESSAGES/util-linux.mo", O_RDONLY) = -1 ENOENT (No such file or directory) open("/usr/share/locale/en.utf8/LC_MESSAGES/util-linux.mo", O_RDONLY) = -1 ENOENT (No such file or directory) open("/usr/share/locale/en/LC_MESSAGES/util-linux.mo", O_RDONLY) = -1 ENOENT (No such file or directory) write(2, "mount: /dev/sda6 already mounted"..., 60mount: /dev/sda6 already mounted or /root/10.10.20.49/ busy ) = 60 umask(077) = 022 open("/etc/mtab", O_RDONLY|O_LARGEFILE) = 3 umask(022) = 077 fstat64(3, {st_mode=S_IFREG|0644, st_size=299, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7dcf000 read(3, "/dev/sda3 / ext3 rw 0 0\nnone /pr"..., 4096) = 299 read(3, "", 4096) = 0 close(3) = 0 munmap(0xb7dcf000, 4096) = 0 exit_group(32) = ? Process 28812 detached -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster