IBM Spectrum Scale Dino Quintero Puneet Chaudhary Brian Herr Steven Normann Marcelo Ramos Richard Rosenthal Robert Simon 4.2 AFM-based disaster recovery:

2020년 8월 9일 "Swift" 대응하며 AFM을 탑재 한 'IBM Spectrum Scale "을 채용. - Swift 서버에 11TB / Hour 의 데이터 전송. 최대의 과제는 고성능 속도 확보.

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Specific to AFM-based Async DR, RTO is the time taken for a fileset to become available for applications after a primary failure. AFM features (currently not documented) Mount wait timeout AFM by default waits for 8 seconds for the remote mount to happen Set mount wait timeout using command “mmfsadm afm mountWaitTimeout ” In memory value, not persitent across daemon restarts Set ACLs on RO (read-only) mode fileset. This topic describes IBM Spectrum Scale™ AFM-based Async Disaster Recovery functionality. Note: This feature is available only with IBM Spectrum Scale Advanced Edition . Our initial feedback from the field suggests that success of a disaster recovery solution depends on administration discipline, including careful design, configuration, and testing. Spectrum Scale Data Migration With AFM. A Cautionary Tale.

6 Mar 2019 This procedure documents how you can convert Spectrum Scale dependent filesets used for an AFM home cluster to independent filesets. to provide a multi-node, consistent cache of data located at another Spectrum Scale cluster.

Why DDN + Spectrum Scale • AFM • Replication with “independent writer” allows for manual disaster recovery with acceptable failover time. • Replication per fileset allows fine-grained control • High Performance – All Flash • GS14KX delivered the required performance – and allows for easy future expansion

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This includes: multi-cluster support, clustered NFS, cluster export services (CES) and protocol support (NFS, SMB, Object, and block), Active File Management (AFM), and AFM-based Asynchronous Disaster Recovery (AFM DR). Spectrum Scale (formerly known as GPFS) is a non-blocking filesystem that is used in high performance computing clusters, Oracle environments and many other environments where you want a high performance, shared filesystem that goes beyond what NFS or Samba can provide. IBM Spectrum Scale – AFM Discussion – Spectrum Scale User Group Meeting 2016 Argonne National Labs, June 10, 2016 – Scott Fadden International Technical Support Organization IBM Spectrum Scale (formerly GPFS) May 2015 SG24-8254-00 IBM Spectrum Scale V ersion 5.0.0 Concepts, Planning, and Installa tion Guide GC27-9219-03 IBM 2021-03-01 IBM Spectrum Scale™ – Active File Management (AFM) ROBO Other Datacenters Scale Cloud Global Namespace Shows entire file system, on flash, disk and tape, across all locations Pre-fetch or Pull on demand Files can be periodically pre-fetched in advance, or pulled on demand when needed WAN Caching Files you use most often are cached to your location for faster access and availability to Spectrum Protect Support For Spectrum Scale AFM (Spectrum Protect 7.1.3) SECONDARY Secondary Storage System Spectrum Scale Cluster PRIMARY Primary Storage System Spectrum Scale Cluster Production System Note: Spectrum Protect setup can be both backup or HSM on cache and home. For simplification Spectrum Protect components not added to figure IBM Spectrum Scale Cloud Data Sharing details — IBM Cloud Object Storage serves as • Central data repository • Data distribution point • Data is accessible for native cloud applications through IBM COS S3 API — Sharing can occur between object storage and many Spectrum Scale Clusters — Shared Data may originate in either the cloud or Spectrum Scale — Data may be moved or copied The course includes information on various Spectrum Scale features that enable remote access to the data that is stored in a cluster file system.

This includes: multi-cluster support, clustered NFS, cluster export services (CES) and protocol support (NFS, SMB, Object, and block), Active File Management (AFM), and AFM-based Asynchronous Disaster Recovery (AFM DR). Spectrum Scale (formerly known as GPFS) is a non-blocking filesystem that is used in high performance computing clusters, Oracle environments and many other environments where you want a high performance, shared filesystem that goes beyond what NFS or Samba can provide.
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2017年3月24日 もともとGPFS（Spectrum Scaleの旧名称） v3.5からあったんですけれども、 AFMという名前になったのはGPFS v4.1からで、弊社もGPFS 

Generic backend support including replication to COS or caching. NFSv4 as backend protocol Immutability and IAM modes External tools support for replication like rsync etc.. AFM DR with LTFS and TSM support. Title: IBM Spectrum Scale 4.2 Advanced File Management (AFM) for Object storage Native object storage is now part of the high performance global file system and provides NVMe access to object storage data.