**hspace** {backend options...} [algorithm options...] [request options...]
[output options...] [-v... | -q]
-**hspace** --version
+**hspace** \--version
Backend options:
{ **-m** *cluster* | **-L[** *path* **] [-X]** | **-t** *data-file* |
-**--simulate** *spec* }
+**\--simulate** *spec* | **-I** *path* }
Algorithm options:
-**[ --max-cpu *cpu-ratio* ]**
-**[ --min-disk *disk-ratio* ]**
+**[ \--max-cpu *cpu-ratio* ]**
+**[ \--min-disk *disk-ratio* ]**
**[ -O *name...* ]**
Request options:
-**[--disk-template** *template* **]**
+**[\--disk-template** *template* **]**
-**[--standard-alloc** *disk,ram,cpu* **]**
+**[\--standard-alloc** *disk,ram,cpu* **]**
-**[--tiered-alloc** *disk,ram,cpu* **]**
+**[\--tiered-alloc** *disk,ram,cpu* **]**
Output options:
-**[--machine-readable**[=*CHOICE*] **]**
+**[\--machine-readable**[=*CHOICE*] **]**
**[-p**[*fields*]**]**
RAM).
INI_MEM_OVERHEAD, FIN_MEM_OVERHEAD
- The initial and final memory overhead--memory used for the node
- itself and unacounted memory (e.g. due to hypervisor overhead).
+ The initial and final memory overhead, i.e. memory used for the node
+ itself and unaccounted memory (e.g. due to hypervisor overhead).
INI_MEM_EFF, HTS_INI_MEM_EFF
The initial and final memory efficiency, represented as instance
example, the cluster might still have 100GiB disk free, but with no
memory left for instances, we cannot allocate another instance, so
in effect the disk space is unallocable. Note that the CPUs here
- represent instance virtual CPUs, and in case the *--max-cpu* option
+ represent instance virtual CPUs, and in case the *\--max-cpu* option
hasn't been specified this will be -1.
ALLOC_USAGE
The options that can be passed to the program are as follows:
---disk-template *template*
- The disk template for the instance; one of the Ganeti disk templates
- (e.g. plain, drbd, so on) should be passed in.
+\--disk-template *template*
+ Overrides the disk template for the instance read from the cluster;
+ one of the Ganeti disk templates (e.g. plain, drbd, so on) should be
+ passed in.
---max-cpu=*cpu-ratio*
+\--spindle-use *spindles*
+ Override the spindle use for the instance read from the cluster. The
+ value can be 0 (for example for instances that use very low I/O), but not
+ negative. For shared storage the value is ignored.
+
+\--max-cpu=*cpu-ratio*
The maximum virtual to physical cpu ratio, as a floating point number
greater than or equal to one. For example, specifying *cpu-ratio* as
**2.5** means that, for a 4-cpu machine, a maximum of 10 virtual cpus
make sense, as that means other resources (e.g. disk) won't be fully
utilised due to CPU restrictions.
---min-disk=*disk-ratio*
+\--min-disk=*disk-ratio*
The minimum amount of free disk space remaining, as a floating point
number. For example, specifying *disk-ratio* as **0.25** means that
at least one quarter of disk space should be left free on nodes.
--l *rounds*, --max-length=*rounds*
+-l *rounds*, \--max-length=*rounds*
Restrict the number of instance allocations to this length. This is
not very useful in practice, but can be used for testing hspace
itself, or to limit the runtime for very big clusters.
--p, --print-nodes
+-p, \--print-nodes
Prints the before and after node status, in a format designed to allow
the user to understand the node's most important parameters. See the
man page **htools**(1) for more details about this option.
are reported by RAPI as such, or that have "?" in file-based input
in any numeric fields.
--S *filename*, --save-cluster=*filename*
+-S *filename*, \--save-cluster=*filename*
If given, the state of the cluster at the end of the allocation is
saved to a file named *filename.alloc*, and if tiered allocation is
enabled, the state after tiered allocation will be saved to
either hspace itself (with different parameters) or for example
hbal, via the ``-t`` option.
--t *datafile*, --text-data=*datafile*
+-t *datafile*, \--text-data=*datafile*
Backend specification: the name of the file holding node and instance
information (if not collecting via RAPI or LUXI). This or one of the
other backends must be selected. The option is described in the man
which is to be contacted via LUXI (an internal Ganeti protocol). The
option is described in the man page **htools**(1).
---simulate *description*
+\--simulate *description*
Backend specification: similar to the **-t** option, this allows
overriding the cluster data with a simulated cluster. For details
about the description, see the man page **htools**(1).
---standard-alloc *disk,ram,cpu*
+\--standard-alloc *disk,ram,cpu*
This option overrides the instance size read from the cluster for the
*standard* allocation mode, where we simply allocate instances of the
same, fixed size until the cluster runs out of space.
- The specification given is similar to the *--simulate* option and it
+ The specification given is similar to the *\--simulate* option and it
holds:
- the disk size of the instance (units can be used)
An example description would be *100G,4g,2* describing an instance
specification of 100GB of disk space, 4GiB of memory and 2 VCPUs.
---tiered-alloc *disk,ram,cpu*
+\--tiered-alloc *disk,ram,cpu*
This option overrides the instance size for the *tiered* allocation
mode. In this mode, the algorithm starts from the given specification
and allocates until there is no more space; then it decreases the
the instance count for these two modes are not related one to
another.
---machine-readable[=*choice*]
+\--machine-readable[=*choice*]
By default, the output of the program is in "human-readable" format,
i.e. text descriptions. By passing this flag you can either enable
(``--machine-readable`` or ``--machine-readable=yes``) or explicitly
disable (``--machine-readable=no``) the machine readable format
described above.
--v, --verbose
+-v, \--verbose
Increase the output verbosity. Each usage of this option will
increase the verbosity (currently more than 2 doesn't make sense)
from the default of one.
--q, --quiet
+-q, \--quiet
Decrease the output verbosity. Each usage of this option will
decrease the verbosity (less than zero doesn't make sense) from the
default of one.
--V, --version
+-V, \--version
Just show the program version and exit.
UNITS
projects / ganeti-local / blobdiff