PRIVATE CLOUD REPLICATION AND RECOVERY

• US 20130263122A1
• Filed: 03/30/2012
• Published: 10/03/2013
• Est. Priority Date: 03/30/2012
• Status: Active Grant

• Current Assignee: 11 11 Systems, Inc.
• Original Assignee: Sungard Availability Services LP (Sungard Availability Services Capital, Inc.)
• Inventors: Levijarvi, Emmanuel S., Mitzev, Ognian S.
• Granted Patent: US 8,930,747 B2
• Time in Patent Office: Days
• US Class Current: 718/1
• CPC Class Codes: G06F 11/1415 at system level
• CPC Class Codes: G06F 11/1484 involving virtual machines
• CPC Class Codes: G06F 11/2028 eliminating a faulty processor or activating a spare
• CPC Class Codes: G06F 11/2041 with more than one idle spare processing component
• CPC Class Codes: G06F 11/2071 using a plurality of controllers

Abstract

Replication and recovery for a protected private cloud infrastructure that may include hosts, virtual machines (VMs) provisioned on the hosts, storage arrays and a management server. is periodically captured and made accessible to a recovery site. Upon a recovery event, replication of storage arrays is halted, and a number of target machines corresponding to the management server and the hosts to be recovered are assigned. The assigned management server and hosts are then bare provisioned by installing operating systems or hypervisors as specified by the metadata. Only then are recovery target machines connected to the replicated storage arrays so that virtual machines can be activated.

Claims

1. A method for recovery of a protected site, the protected site including hosts, virtual machines (VMs) provisioned on the hosts, storage arrays, and a management server, the method comprising:

prior to a recovery event,

operating the management server to permit a user to configure the hosts and storage arrays, and to provision the VMs on the hosts;

replicating the storage arrays to replicated storage arrays at a recovery site;

capturing metadata from the management server concerning configuration of the hosts and VMs to a metadata repository accessible to the recovery site;

is upon a recovery event,

stopping replication of the storage arrays to the replicated storage arrays;

accessing the metadata repository for importing a metadata subset that represents configuration for recovery target machines, the metadata subset representing only a portion of the metadata replicated from the management server;

assigning a number of target machines corresponding to the management server and hosts indicated by the metadata subset;

installing operating systems on the recovery target machines;

recovering the management server from the metadata subset to one of the recovery target machines;

recovering the hosts from the metadata subset to recovery target machines;

attaching recovery target machines to the replicated storage arrays; and

provisioning VMs from the metadata subset on the recovery target machines.

2. The method of claim 1 wherein the steps of

assigning a number of target machines corresponding to the management server and hosts,

installing operating systems on the recovery target machines,

recovering the management server,

recovering the hosts from the metadata subset to recovery target machines,

attaching recovery target machines to the replicated storage arrays, and

provisioning VMs from the metadata subset on the recovery target machines,

all occur in a sequence as stated and occur automatically without operator intervention.

3. The method of claim 1 wherein a user specifies a subset of the hosts, storage arrays and/or VMs upon a recovery event.

4. The method of claim 1 wherein the management server further permits a user to specify a subset of the hosts, storage arrays and/or VMs for replication as part of importing the metadata subset.

5. The method of claim 1 wherein the management server permits the user to reconfigure the hosts and/or VMs without interrupting operation of other hosts and/or VMs while the protected site is operating.

6. The method of claim 1 wherein replicating the storage arrays occurs continuously.

7. The method of claim 1 wherein replicating the storage arrays occurs continuously or on a scheduled basis.

8. The method of claim 1 wherein the recovery event is a time or disaster and/or time of test.

9. The method of claim 1 wherein the metadata comprises a representation of two is or more of:

information about the management server;

groupings of hosts and virtual machines;

information about hardware needed for a host, including type of host, or network configuration for the host;

virtual switch configuration, including physical network interfaces, used by the virtual switch to route network traffic outside of the host, or virtual network interface configuration used by management network traffic, or network configuration for the virtual network interface, or types of traffic which can flow over the virtual network interface, or groupings of virtual ports on a virtual switch;

physical network interface configuration;

virtual machine definitions;

or

esource pool definitions used to distribute CPU and memory resources.

10. An apparatus comprising:

a protected site including hosts, virtual machines (VMs) provisioned on the hosts, storage arrays, and a management server,

replicated storage arrays for replicating the storage arrays,

a metadata repository, accessible to a recovery site, for capturing configuration metadata received from hosts and VMs to a metadata repository accessible to the recovery site;

a recovery site including recovery target machines,

an import tool for accessing the metadata repository for importing a metadata subset that represents configuration for recovery target machines, the metadata subset representing only a portion of the metadata;

a recovery manager, for

stopping replication of the storage arrays;

mapping target machines corresponding to the management server and is hosts indicated by the metadata subset;

installing operating systems on the recovery target machines;

recovering the management server from the metadata subset to one of the recovery target machines;

recovering the hosts from the metadata subset to recovery target machines;

attaching recovery target machines to the replicated storage arrays; and

provisioning VMs from the metadata subset on the recovery target machines.

11. The apparatus of claim 10 wherein the recovery manager

assigns a number of target machines corresponding to the management server and hosts,

installs operating systems on the recovery target machines,

recovers the management server,

recovers the hosts from the metadata subset to recovery target machines,

attaches recovery target machines to the replicated storage arrays, and

provisions VMs from the metadata subset on the recovery target machines,

in a defined sequence as stated and automatically without operator intervention.

12. The apparatus of claim 10 wherein the recovery manager receives input from a is user specifies a subset of the hosts, storage arrays and/or VMs upon a recovery event.

13. The apparatus of claim 10 wherein the recovery manager server further permits a user to specify a subset of the hosts, storage arrays and/or VMs for replication as part of the metadata subset.

14. The apparatus of claim 10 wherein the recovery manager permits a user to reconfigure the hosts and/or VMs without interrupting operation of other hosts and/or VMs while the protected site is operating.

15. The apparatus of claim 10 wherein replicating the storage arrays occurs continuously until halted, and then restarted after the recovery site is operational.

16. The apparatus of claim 10 wherein replicating metadata from the management server occurs on a scheduled basis.

17. The apparatus of claim 10 wherein the recovery event is a time or disaster and/or time of test.

18. The apparatus of claim 10 wherein the metadata comprises a representation of two or more of:

information about the management server;

groupings of hosts and virtual machines;

information about hardware needed for a host, including type of host, or network configuration for the host;

virtual switch configuration, including physical network interfaces, used by the virtual switch to route network traffic outside of the host, or virtual is network interface configuration used by management network traffic, or network configuration for the virtual network interface, or types of traffic which can flow over the virtual network interface, or groupings of virtual ports on a virtual switch;

physical network interface configuration;

virtual machine definitions;

or

resource pool definitions used to distribute CPU and memory resources.

19. A programmable computer system product for recovery of a protected data processing site, the protected site including hosts, virtual machines (VMs) provisioned on the hosts, storage arrays, and a management server, the programmable computer system product comprising one or more data processing machines that execute instructions retrieved from a storage media, the instructions for:

prior to a recovery event,

operating the management server to permit a user to configure the hosts and storage arrays, and to provision the VMs on the hosts;

replicating the storage arrays to replicated storage arrays at a recovery site;

capturing metadata from the management server concerning configuration of the hosts and VMs to a metadata repository accessible to the recovery site;

upon a recovery event,

stopping replication of the storage arrays to the replicated storage arrays;

accessing the metadata repository for importing a metadata subset that represents configuration for recovery target machines, the metadata subset representing only a portion of the metadata replicated from the management server;

assigning a number of target machines corresponding to the management server and hosts indicated by the metadata subset;

installing operating systems on the recovery target machines;

recovering the management server from the metadata subset to one of the recovery target machines;

recovering the hosts from the metadata subset to recovery target machines;

attaching recovery target machines to the replicated storage arrays; and

provisioning VMs from the metadata subset on the recovery target machines.