diff options
Diffstat (limited to 'tools/src/misc')
| -rw-r--r-- | tools/src/misc/h5clear.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/tools/src/misc/h5clear.c b/tools/src/misc/h5clear.c index 31f7c17..ea3e072 100644 --- a/tools/src/misc/h5clear.c +++ b/tools/src/misc/h5clear.c @@ -61,6 +61,13 @@ static struct h5_long_options l_opts[] = { static void usage(const char *prog) { + fprintf(stdout, "h5clear clears superblock status flag field, removes metadata cache image, prints\n"); + fprintf(stdout, "EOA and EOF, or sets EOA of a file. It is not a general repair tool and should not\n"); + fprintf(stdout, "be used to fix file corruption. If a process doesn't shut down cleanly, the\n"); + fprintf(stdout, "superblock mark can be left that prevents opening a file without SWMR. Then,\n"); + fprintf(stdout, "h5clear can be used to remove this superblock mark so that the file can be inspected\n"); + fprintf(stdout, "and appropriate actions can be taken.\n"); + fprintf(stdout, "\n"); fprintf(stdout, "usage: %s [OPTIONS] file_name\n", prog); fprintf(stdout, " OPTIONS\n"); fprintf(stdout, " -h, --help Print a usage message and exit\n"); @@ -73,8 +80,8 @@ usage(const char *prog) fprintf(stdout, " C is >= 0; C is optional and will default to 1M when not set.\n"); fprintf(stdout, - " This option helps to repair a crashed file where the stored EOA\n"); - fprintf(stdout, " in the superblock is different from the actual EOF.\n"); + " This option helps to repair a crashed SWMR file when the stored\n"); + fprintf(stdout, " EOA in the superblock is different from the actual EOF.\n"); fprintf(stdout, " The file's EOA and EOF will be the same after applying\n"); fprintf(stdout, " this option to the file.\n"); fprintf(stdout, "\n"); |