"usage: "cmd" [--stripe-count|-c <stripe_count>]\n" \
" [--stripe-index|-i <start_ost_idx>]\n" \
" [--stripe-size|-S <stripe_size>]\n" \
+ " [--layout|-L <pattern>]\n" \
" [--pool|-p <pool_name>]\n" \
" [--ost|-o <ost_indices>]\n" \
" [--component-end|-E <comp_end>]\n"
"\t respectively)\n" \
"\tstart_ost_idx: OST index of first stripe (-1 default)\n" \
"\tstripe_count: Number of OSTs to stripe over (0 default, -1 all)\n" \
+ "\tlayout: stripe pattern type: raid0, mdt (default raid0)\n"\
"\tpool_name: Name of OST pool to use (default none)\n" \
"\tost_indices: List of OST indices, can be repeated multiple times\n"\
"\t Indices be specified in a format of:\n" \
" [[!] --gid|-g|--group|-G <gid>|<gname>]\n"
" [[!] --uid|-u|--user|-U <uid>|<uname>] [[!] --pool <pool>]\n"
" [[!] --projid <projid>]\n"
- " [[!] --layout|-L released,raid0]\n"
+ " [[!] --layout|-L released,raid0,mdt]\n"
" [[!] --component-count [+-]<comp_cnt>]\n"
" [[!] --component-start [+-]N[kMGTPE]]\n"
" [[!] --component-end|-E [+-]N[kMGTPE]]\n"
int lsa_stripe_off;
__u32 lsa_comp_flags;
int lsa_nr_osts;
+ int lsa_pattern;
__u32 *lsa_osts;
char *lsa_pool_name;
};
{
return (lsa->lsa_stripe_size != 0 || lsa->lsa_stripe_count != 0 ||
lsa->lsa_stripe_off != -1 || lsa->lsa_pool_name != NULL ||
- lsa->lsa_comp_end != 0);
+ lsa->lsa_comp_end != 0 || lsa->lsa_pattern != 0);
}
static int comp_args_to_layout(struct llapi_layout **composite,
return rc;
}
+ /* Data-on-MDT component setting */
+ if (lsa->lsa_pattern == LLAPI_LAYOUT_MDT) {
+ /* In case of Data-on-MDT patterns the only extra option
+ * applicable is stripe size option. */
+ if (lsa->lsa_stripe_count) {
+ fprintf(stderr, "Option 'stripe-count' can't be "
+ "specified with Data-on-MDT component: %i\n",
+ lsa->lsa_stripe_count);
+ return -EINVAL;
+ }
+ if (lsa->lsa_stripe_size) {
+ fprintf(stderr, "Option 'stripe-size' can't be "
+ "specified with Data-on-MDT component: %llu\n",
+ lsa->lsa_stripe_size);
+ return -EINVAL;
+ }
+ if (lsa->lsa_nr_osts != 0) {
+ fprintf(stderr, "Option 'ost-list' can't be specified "
+ "with Data-on-MDT component: '%i'\n",
+ lsa->lsa_nr_osts);
+ return -EINVAL;
+ }
+ if (lsa->lsa_stripe_off != -1) {
+ fprintf(stderr, "Option 'stripe-offset' can't be "
+ "specified with Data-on-MDT component: %i\n",
+ lsa->lsa_stripe_off);
+ return -EINVAL;
+ }
+ if (lsa->lsa_pool_name != 0) {
+ fprintf(stderr, "Option 'pool' can't be specified "
+ "with Data-on-MDT component: '%s'\n",
+ lsa->lsa_pool_name);
+ return -EINVAL;
+ }
+
+ rc = llapi_layout_pattern_set(layout, lsa->lsa_pattern);
+ if (rc) {
+ fprintf(stderr, "Set stripe pattern %#x failed. %s\n",
+ lsa->lsa_pattern, strerror(errno));
+ return rc;
+ }
+ /* Data-on-MDT component has always single stripe up to end */
+ lsa->lsa_stripe_size = lsa->lsa_comp_end;
+ }
+
if (lsa->lsa_stripe_size != 0) {
rc = llapi_layout_stripe_size_set(layout,
lsa->lsa_stripe_size);
* the consistent "--stripe-size|-S" for all commands. */
{ .val = 's', .name = "size", .has_arg = required_argument },
#endif
+ { .val = 'L', .name = "layout", .has_arg = required_argument },
{ .val = 'S', .name = "stripe-size", .has_arg = required_argument },
{ .val = 'S', .name = "stripe_size", .has_arg = required_argument },
/* dirstripe {"mdt-count", required_argument, 0, 'T'}, */
if (strcmp(argv[0], "migrate") == 0)
migrate_mode = true;
- while ((c = getopt_long(argc, argv, "bc:dE:i:I:m:no:p:s:S:v",
+ while ((c = getopt_long(argc, argv, "bc:dE:i:I:m:no:p:L:s:S:v",
long_opts, NULL)) >= 0) {
switch (c) {
case 0:
}
}
break;
+ case 'L':
+ if (strcmp(argv[optind - 1], "mdt") == 0) {
+ /* Can be only the first component */
+ if (layout != NULL) {
+ fprintf(stderr, "error: 'mdt' layout "
+ "can be only the first one\n");
+ goto error;
+ }
+ if (lsa.lsa_comp_end > (1ULL << 30)) { /* 1Gb */
+ fprintf(stderr, "error: 'mdt' layout "
+ "size is too big\n");
+ goto error;
+ }
+ lsa.lsa_pattern = LLAPI_LAYOUT_MDT;
+ } else if (strcmp(argv[optind - 1], "raid0") != 0) {
+ fprintf(stderr, "error: layout '%s' is "
+ "unknown, supported layouts are: "
+ "'mdt', 'raid0'\n", argv[optind]);
+ goto error;
+ }
+ break;
case 'i':
if (strcmp(argv[optind - 1], "--index") == 0)
fprintf(stderr, "warning: '--index' deprecated"
param->lsp_stripe_size = lsa.lsa_stripe_size;
param->lsp_stripe_offset = lsa.lsa_stripe_off;
param->lsp_stripe_count = lsa.lsa_stripe_count;
- param->lsp_stripe_pattern = 0;
param->lsp_pool = lsa.lsa_pool_name;
param->lsp_is_specific = false;
if (lsa.lsa_nr_osts > 0) {
static int name2layout(__u32 *layout, char *name)
{
- char *ptr, *lyt;
+ char *ptr, *layout_name;
*layout = 0;
for (ptr = name; ; ptr = NULL) {
- lyt = strtok(ptr, ",");
- if (lyt == NULL)
+ layout_name = strtok(ptr, ",");
+ if (layout_name == NULL)
break;
- if (strcmp(lyt, "released") == 0)
+ if (strcmp(layout_name, "released") == 0)
*layout |= LOV_PATTERN_F_RELEASED;
- else if (strcmp(lyt, "raid0") == 0)
+ else if (strcmp(layout_name, "raid0") == 0)
*layout |= LOV_PATTERN_RAID0;
+ else if (strcmp(layout_name, "mdt") == 0)
+ *layout |= LOV_PATTERN_MDT;
else
return -1;
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff