[blivet:rhel7-master 4/6] Add mdrun method to just start, not assemble, an array. (#1090009)

mulhern amulhern at redhat.com
Fri Dec 12 15:59:45 UTC 2014


Related: rhbz#1090009

Signed-off-by: mulhern <amulhern at redhat.com>
---
 blivet/devicelibs/mdraid.py | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/blivet/devicelibs/mdraid.py b/blivet/devicelibs/mdraid.py
index 11e06d7..ae8fa4d 100644
--- a/blivet/devicelibs/mdraid.py
+++ b/blivet/devicelibs/mdraid.py
@@ -257,6 +257,20 @@ def mddeactivate(device):
     except MDRaidError as msg:
         raise MDRaidError("mddeactivate failed for %s: %s" % (device, msg))
 
+def mdrun(device):
+    """Start a possibly degraded array.
+
+       :param str device: the device to be assembled
+
+       :raises :class:`~.errors.MDRaidError`: on failure
+    """
+    args = ["--run", device]
+
+    try:
+        mdadm(args)
+    except MDRaidError as msg:
+        raise MDRaidError("mdrun failed for %s: %s" % (device, msg))
+
 def process_UUIDS(info, UUID_keys):
     """ Extract and convert expected UUIDs to canonical form.
         Reassign canonicalized UUIDs to corresponding keys.
-- 
1.9.3



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