**hscan**
saves cluster state for later reuse
+**hinfo**
+ cluster information printer
+
+**hroller**
+ cluster rolling maintenance scheduler
DESCRIPTION
-----------
-
``htools`` is a suite of tools designed to help with allocation/movement
of instances and balancing of Ganeti clusters. ``htools`` is also the
generic binary that must be symlinked or hardlinked under each tool's
Installed as ``hscan``, it scans the local or remote cluster state and
saves it to files which can later be reused by the other roles.
+Installed as ``hinfo``, it prints information about the current cluster
+state.
+
+Installed as ``hroller``, it helps scheduling maintenances that require
+node reboots on a cluster.
+
COMMON OPTIONS
--------------
- the cpu core count for the nodes
- the spindle count for the nodes
- An example description would be **preferred,B20,100G,16g,4,2**
+ An example description would be **preferred,20,100G,16g,4,2**
describing a 20-node cluster where each node has 100GB of disk space,
16GiB of memory, 4 CPU cores and 2 disk spindles. Note that all nodes
must have the same specs currently.