Changes between Version 2 and Version 3 of GENIRacksHome/OpenGENIRacks/AdministrationGuide

Timestamp:

11/19/14 08:54:33 (9 years ago)

Author:

sdabideen@bbn.com

Comment:

--

GENIRacksHome/OpenGENIRacks/AdministrationGuide

@@ -262 +262 @@
 
 
+== Adding a Flavor ==
+
+Use the flavor-create subcommand of nova : nova flavor-create <ID> <RAM in MB> <disk space in GB> <num virtual cores>
+
+{{{
+nova flavor-create m1.super 7 32768 160 16
+nova flavor-list
++--------------------------------------+------------+-----------+------+-----------+------+-------+-------------+-----------+-------------+
+| ID                                   | Name       | Memory_MB | Disk | Ephemeral | Swap | VCPUs | RXTX_Factor | Is_Public | extra_specs |
++--------------------------------------+------------+-----------+------+-----------+------+-------+-------------+-----------+-------------+
+| 1                                    | m1.tiny    | 512       | 0    | 0         |      | 1     | 1.0         | True      | {}          |
+| 2                                    | m1.small   | 2048      | 20   | 0         |      | 1     | 1.0         | True      | {}          |
+| 3                                    | m1.medium  | 4096      | 40   | 0         |      | 2     | 1.0         | True      | {}          |
+| 4                                    | m1.large   | 8192      | 80   | 0         |      | 4     | 1.0         | True      | {}          |
+| 6                                    | default-vm | 2048      | 20   | 0         |      | 1     | 1.0         | True      | {}          |
+| 7                                    | m1.super   | 32768     | 160  | 0         |      | 16    | 1.0         | True      | {}          |
+| 76b049db-7f84-4fa0-8202-a31432af34d7 | m1.xlarge  | 16384     | 160  | 0         |      | 8     | 1.0         | True      | {}          |
++--------------------------------------+------------+-----------+------+-----------+------+-------+-------------+-----------+-------------+
+}}}
+
+== Managing Quotas ==
+Openstack enforces quotas at the slice (project) level and at the server level. 
+
+To view the default quotas, use the following command:
+{{{
+source /etc/novarc
+nova quota-defaults
+}}}
+
+To update the default quota, use the following command:
+{{{
+nova quota-class-update --key value default
+}}} 
+See here for more details:
+http://docs.openstack.org/user-guide-admin/content/cli_set_quotas.html
+
+There is also a notion of absolute limits on quota. The default quota
+cannot exceed the absolute limits. 
+To view the absolute limit quota, use the following command: 
+{{{
+nova absolute-limits
+}}}
+
+To change the value of the absolute-limits you must edit /etc/nova/nova.conf on the control node and restart the nova-api service. 
+For example, you can add these lines to set the number of cores and RAM:
+{{{
+quota_ram=512000
+quota_cores=150
+}}}
+
+Further, there is a notion of overcommitting in OpenStack and this too has a limit. 
+See here for details: http://docs.openstack.org/openstack-ops/content/compute_nodes.html
+
 
 === Cleanup Procedures ===
@@ -280 +333 @@
      sudo service gram-amv2 restart
 }}}
+
+