X-Git-Url: https://code.grnet.gr/git/ganeti-local/blobdiff_plain/0c7d4422715c27c597da8bcc8baa3e886e36e246..1bf1ce3f9a72cdd4efadeb50d4ca7162e4239c13:/man/htools.rst diff --git a/man/htools.rst b/man/htools.rst index cc9ef39..ea9019f 100644 --- a/man/htools.rst +++ b/man/htools.rst @@ -12,6 +12,9 @@ SYNOPSIS **hbal** cluster balancer +**hcheck** + cluster checker + **hspace** cluster capacity computation @@ -21,6 +24,9 @@ SYNOPSIS **hscan** saves cluster state for later reuse +**hinfo** + cluster information printer + DESCRIPTION ----------- @@ -35,6 +41,9 @@ environment variable HTOOLS can be used to set the desired role. Installed as ``hbal``, it computes and optionally executes a suite of instance moves in order to balance the cluster. +Installed as ``hcheck``, it preforms cluster checks and optionally +simulates rebalancing with all the ``hbal`` options available. + Installed as ``hspace``, it computes how many additional instances can be fit on a cluster, while maintaining N+1 status. It can run on models of existing clusters or of simulated clusters. @@ -45,6 +54,9 @@ by Ganeti to compute new instance allocations and instance moves. 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. + COMMON OPTIONS -------------- @@ -203,6 +215,11 @@ support all options. Some common options are: on which the master daemon listens; otherwise, the default path used by Ganeti (configured at build time) is used. +-I|\--ialloc-src *path* + Backend specification: load data directly from an iallocator request + (as produced by Ganeti when doing an iallocator call). The iallocator + request is read from specified path. + \--simulate *description* Backend specification: instead of using actual data, build an empty cluster given a node description. The *description* parameter must be @@ -216,7 +233,7 @@ support all options. Some common options are: - 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.