diff options
| -rw-r--r-- | Grow.c | 9 | ||||
| -rw-r--r-- | mdadm.c | 9 |
2 files changed, 18 insertions, 0 deletions
@@ -524,6 +524,15 @@ int Grow_reshape(char *devname, int fd, int quiet, char *backup_file, return 1; } + if (size >= 0 && + (chunksize || level!= UnSet || layout_str || raid_disks)) { + fprintf(stderr, Name ": cannot change component size at the same time " + "as other changes.\n" + " Change size first, then check data is intact before " + "making other changes.\n"); + return 1; + } + if (raid_disks && raid_disks < array.raid_disks && array.level > 1 && get_linux_version() < 2006032 && !check_env("MDADM_FORCE_FEWER")) { @@ -1417,9 +1417,18 @@ int main(int argc, char *argv[]) if (array_size >= 0) { /* alway impose array size first, independent of * anything else + * Do not allow level or raid_disks changes at the + * same time as that can be irreversibly destructive. */ struct mdinfo sra; int err; + if (raiddisks || level != UnSet) { + fprintf(stderr, Name ": cannot change array size in same operation " + "as changing raiddisks or level.\n" + " Change size first, then check that data is still intact.\n"); + rv = 1; + break; + } sysfs_init(&sra, mdfd, 0); if (array_size == 0) err = sysfs_set_str(&sra, NULL, "array_size", "default"); |