Surviving The Worst: Disaster Recovery For OpenStack
Surviving the Worst:Disaster Recovery for OpenStackRonen Kat, IBM Research – HaifaAyal Baron, Red HatPartially sponsored by
AgendaWhat is disaster recoveryDisaster Recovery trailerVolume storage replication in CinderCall for action. the road to disaster recovery2
History Good things are happening in OpenStack Meetups Following the 3rd OpenStack Israel meetup, IBM Research and Red Hat got together. OpenStack Disaster Recovery initiative A new initiative led by Red Hat & IBM Research to design how you can do DisasterRecovery for OpenStack workloadsPlan calls for open and pluggable architecture and APIs,allowing integrating products and enablement withthe disaster recovery framework News from Hong-Kong. Three Disaster Recovery sessions in the IceHouse summit 3Disaster Recovery in OpenStack Users session - full-house attendance (Michael Factor)Cinder design summit session on volume replication (Avishay Traeger)Un-conference session – received a lot of community interest and vendor buy-in(Avishay Traeger, Ayal Baron)
What is Disaster Recovery? According to Wikipedia, Disaster Recovery (DR) is "the process, policies andprocedures . . . for recovery . . . of technology infrastructure . . . after a natural orhuman-induced disaster.”Implication: Surviving4a disaster requires geographic dispersion
What is Disaster Recovery? According to Wikipedia, Disaster Recovery (DR) is "the process, policies andprocedures . . . for recovery . . . of technology infrastructure . . . after a natural orhuman-induced ation
What is Disaster Recovery? According to Wikipedia, Disaster Recovery (DR) is "the process, policies andprocedures . . . for recovery . . . of technology infrastructure . . . after a natural orhuman-induced disaster.” Up front (good path)– Planning– Copy– Testing DetectionOops!X Recovery– Infrastructure– ApplicationDR CopyPrimary DC6PeriodicTestSecondary DC
Recovery Point Objective and Recovery Time ObjectiveBackupRestoreAsynchronous SynchronousreplicationreplicationWeeks DaysHours Minutes SecondsRecovery Point Objective(RPO)How far back in time adisaster takes one’s data7High AvailabilityHot siteSeconds Minutes Hours Days WeeksRecovery Point Time(RTO)How long until operationalafter a disaster
Jump to the DemoOpenStack Disaster Recovery TrailerFeaturing:Backup/restore based disaster recoveryHeat based deployment on target cloud8
State of the Art: OpenStack Disaster RecoverySingle clouddeploymentGeo-Independent clouddeploymentsCinder volumereplicationGlancemulti locationsSwift global clusterNova cells andregionsHighAvailability9DisasterRecovery
The Disaster Recovery Infrastructure Puzzle for OpenStack10
Storage Replication for OpenStackGoal:Enable cloud administrators to provide data resiliency levels in a transparent no-hasslemanner to end usersMethod:Enable Cinder to manage replication of volumesMechanism:Data replication is performed by the storage backends or using host based replicationsolutionsControl:Replication will be managed via volume types, transparently (beyond selecting a volumetype) to the user (both in terms of visibility and maintenance)11
Storage Replication for OpenStack – Key PointsThe storage adminWill pre-setup the infrastructure which Cinder volume drivers can discoverCinder volume drivers will reportIf they can perform volume replication, and with whomThe supported minimal and maximal Recovery Point Objective ObjectivesCloud administrator will defineVolume types with a targeted Recovery Point ObjectiveTarget Cinder availability zone for replicated volumeThe end-userWill select an appropriate volume type for its data volumesCinder scheduler will orchestrate the placement of the volume with the appropriate resiliency(replication) definitions12
Storage Replication for OpenStack – Restrictions in IcehouseCinder scheduler will support volume replication for a single OpenStack Cinder deploymentWill not coordinate replication across multiple OpenStack Cinder installationsNo actions can be taken on the secondary copy except for promoting it to primaryThat is, can’t attach, detach, snapshot, backup, etc.All actions are available when volume is promoted13
The Road from Disaster to Recovery.We are just scratching the surface and encourage erRecoveryMailing list: disaster-recoveryVolume Replication Links:Blueprint: https://blueprints.launchpad.net/cinder/ spec/volume-mirroringDesign: ontinuous-volume-replication-v2Disaster Recovery talk at Icehouse summit: https://ibm.biz/BdRiFMDisaster Recovery Enablement in OpenStack dhatstack.com14
Storage Replication for OpenStack – Restrictions in Icehouse Cinder scheduler will support volume replication for a single OpenStack Cinder deployment Will not coordinate replication across multiple OpenStack Cinder installations No actions can be taken on the secondary copy except for promoting it to primary
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NetWorker Server disaster recovery roadmap This guide provides an aid to disaster recovery planning an detailed step-by-step disaster recovery instructions. The following figure shows the high-level steps to follow when performing a disaster recovery of the NetWorker Server. Figure 1 Disaster recovery roadmap Bootstrap and indexes
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4.2 State Disaster Recovery policy 4.3 County and Municipal Recovery Relationships 4.4 Recovery Plan Description 4.5 Recovery Management Structure and Recovery Operations 4.6 Draft National Disaster recovery Framework (February 5, 2010) 4.6.1 Draft Purpose Statement of the National Disaster Recovery Framework
