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authorfuqiao <fuqiao@chinamobile.com>2016-01-28 10:05:33 +0800
committerfuqiao <fuqiao@chinamobile.com>2016-01-28 10:05:33 +0800
commitc3d65029c1f07fd11c5ec754b194ac1357b8e0ce (patch)
tree1353e16ebffe84ae16e914c263ae7f6aa3919dc4 /Requirement/virtual_facilities_HA_new.rst
parent96ea75a56d8bc93a51cbd8a6ecffdcc5456e3d8b (diff)
Remove all the old seperate sections. Will Reorganize and upload again
Will upload the seperate sections in the next patch. JIRA:HA-1
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-3 Virtualization Facilities (Host OS, Hypervisor)
-====================================================
-
-3.1 Requirements on Host OS and Hypervisor and Storage
-Requirements:
-- The hypervisor should support distributed HA mechanism
-- Hypervisor should detect the failure of the VM. Failure of the VM should be reported to
- the VIM within 1s
-- The hypervisor should report (and if possible log) its failure and recovery action.
- and the destination to whom they are reported should be configurable.
-- The hypervisor should support VM migration
-- The hypervisor should provide isolation for VMs, so that VMs running on the same
- hardware do not impact each other.
-- The host OS should provide sufficient process isolation so that VMs running on
- the same hardware do not impact each other.
-- The hypervisor should record the VM information regularly and provide logs of
- VM actions for future diagnoses.
-- The NFVI should maintain the number of VMs provided to the VNF in the face of failures.
- I.e. the failed VM instances should be replaced by new VM instances
-3.2 Requirements on Middlewares
-Requirements:
-- It should be possible to detect and automatically recover from hypervisor failures
- without the involvement of the VIM
-- Failure of the hypervisor should be reported to the VIM within 1s
-- Notifications about the state of the (distributed) storage backends shall be send to the
- VIM (in-synch/healthy, re-balancing/re-building, degraded).
-- Process of VIM runing on the compute node should be monitored, and failure of it should
- be notified to the VIM within 1s
-- Fault detection and reporting capability. There should be middlewares supporting in-band
- reporting of HW failure to VIM.
-- Storage data path traffic shall be redundant and fail over within 1 second on link
- failures.
-- Large deployments using distributed software-based storage shall separate storage and
- compute nodes (non-hyperconverged deployment).
-- Distributed software-based storage services shall be deployed redundantly.
-- Data shall be stored redundantly in distributed storage backends.
-- Upon failures of storage services, automatic repair mechanisms (re-build/re-balance of
- data) shall be triggered automatically.
-- The storage backend shall support geo-redundancy. \ No newline at end of file