Changeset 217d0fb in mainline

Timestamp:

2025-05-06T21:56:36Z (5 weeks ago)

Author:

Miroslav Cimerman <mc@…>

Children:

13c2365

Parents:

c2f0160

Message:

hrctl: add notes about failing an extent

File:

• uspace/app/hrctl/hrctl.c (modified) (2 diffs)

uspace/app/hrctl/hrctl.c

@@ -71 +71 @@
     "\n"
     "  -m, --modify volume                       Modify a volume, options:\n"
-    "          -f, --fail index                  fail an extent, or\n"
+    "          -f, --fail index                  fail an extent (DANGEROUS), or\n"
     "          -h, --hotspare device             add hotspare.\n"
     "\n"
@@ -88 +88 @@
     "\t\thrctl -s\n"
     "\n"
-    "Volume service names are automatically prepended with \"devices/\" prefix.\n"
+    "Notes:\n"
+    "  Volume service names are automatically prepended with \"devices/\" prefix.\n"
+    "  Simulating an extent failure with -m volume -f index is dangerous. It marks\n"
+    "  metadata as dirty in other healthy extents, and therefore invalidates\n"
+    "  the specified extent.\n"
     "\n"
     "Limitations:\n"