To provide the world with a next generation storage platform for unstructured data, enabling deployment of mobile applications, virtualization solutions, and software. To support the on-going development of relevant critical path standards and open source technologies.

 AFS is: A global file system name space (/afs) A family of file system RPCs used to manipulate the contents of the name space A class of client and server implementations that provide access to the name space  OpenAFS is: One of the oldest open source communities One of the largest open source projects The most widely deployed implementation of AFS

 Andrew File System Part of the Carnegie Mellon University and IBM Andrew Project of the 1980s First reference to “Cloud Storage” in early papers I.P. owned by IBM not Carnegie Mellon  AFS commercialized by Transarc / IBM Shifted focus to DCE DFS  Open source era began in 2000

 Large active team. 40 devs in last 12 months. 249 since formation.  Nearly 1 million lines of code and documentation.  Approaching 10,000 contributions.  Basic COCOMO effort analysis 217 person years $23 million

Platform Specific Redirection Authentication and Privacy Geographic Data Replication & Data Integrity Distributed Administration & Disconnected Operation Atomic Publishing Model One File System for All Clients Global Accessibility and Federation Platfiorm & Location Independence

OS Apps AFS Cache Client Device Desktop, Laptop, Mobile AFS cache stores recently accessed file, directory and location data reducing network traffic AFS Client Location Server File Server Data File Server Data OS Apps AFS Client AFS Cache Client Device Authenticated Callbacks notify clients of changes to data, metadata and lock status Separate location and data servers allow for strong scalability and seamless maintenance Replication of data volumes ensure high availability and disaster recovery Rich security services provide secure access on open networks and federated collaboration Portable cross platform client

 Each has an owner  Each belongs to a specific cell which determines which protection database is used for access control  Each can be migrated, replicated and backed up independently  Each can mount other volumes within the same or different cells

 The fastest RPC is the one that is never sent  AFS caches data and metadata to avoid repetitive fetches from the file servers  Cached info: Object Status (size, timestamps, data version) Per user permissions Lock state Unix mode bits / attributes Accessed data extents (offset, length)

 For each read-write object and each read- only volume a callback promise is registered with the file server the data was accessed on.  When any change occurs to the state of the object or volume, the file server notifies all registrants that some change *might* have occurred.  It is up to the client to decide if updated data is required.

 Bullets

 Enhanced user interface integration  Troubleshooting wizards  Integrated update service  OS Vendor certification Microsoft Windows only

 Features File Browser Integrated document viewing Open documents with third party applications Save documents from third party applications Integrated authentication User to User Document Sharing Service  Core Application Frameworks available for integration in custom apps

 Capable of monitoring multiple cells  Collects server performance data  Performs cell consistency checks  Alert generation  Cell introspection  Browser and mobile application

 Integrated Turnkey Storage Appliances offering a superset of OpenAFS functionality

 24-7 Crisis Resolution Services  Troubleshooting and Configuration Services  On-site and remote training classes for system administrators and end users  Custom feature development  Services provided for both OpenAFS and YFS

1 st Gen 2012 Q1 1 st Gen Base file system platform Large volume support GSS Authentication AES-256 RFC3962 encryption High scalability R/W replication IPv6 Parallel reads Unicode directories Disaster recovery capabilities No single points of failure Departmental file servers Byte range locks Authenticated Fine Grained Coherency Many-to-One Authn to Authz Ids Arbitrary file system import Automated client update services Automated Troubleshooting Tools Mobile clients and SDKs for custom applications Integrated Monitoring and Management Interface

1 st Gen2 nd Gen 2012 Q12013 Q1 1 st Gen2 nd Gen Advanced volume storage Data integrity De-duplication Compression Self-healing Snapshots & clones Storage pools Additional features TCP transport Disconnected clients Event driven server arch. Multiple data streams Extended Attributes Peer to peer data sharing Hypervisor Integration Base file system platform Large volume support GSS Authentication AES-256 RFC3962 encryption High scalability R/W replication IPv6 Parallel reads Unicode directories Disaster recovery capabilities No single points of failure Departmental file servers Byte range locks Authenticated Fine Grained Coherency Many-to-One Authn to Authz Ids Arbitrary file system import Automated client update services Automated Troubleshooting Tools Mobile clients and SDKs for custom applications Integrated Monitoring and Management Interface

1 st Gen2 nd Gen 2012 Q12013 Q1 Consumer storage appliance YFS hosted storage services and facilities build out using YFS rack servers 1 st Gen2 nd Gen Advanced volume storage Data integrity De-duplication Compression Self-healing Snapshots & clones Storage pools Additional features TCP transport Disconnected clients Event driven server arch. Multiple data streams Extended Attributes Peer to peer data sharing Hardware encryption module YFS hosted storage services and facilities build out using YFS rack servers Base file system platform Large volume support GSS Authentication AES-256 RFC3962 encryption High scalability R/W replication IPv6 Parallel reads Unicode directories Disaster recovery capabilities No single points of failure Departmental file servers Byte range locks Authenticated Fine Grained Coherency Many-to-One Authn to Authz Ids Arbitrary file system import Automated client update services Automated Troubleshooting Tools Mobile clients and SDKs for custom applications Integrated Monitoring and Management Interface

1 st Gen2 nd Gen 3 rd Gen 2012 Q12013 Q Q1 Consumer storage appliance YFS hosted storage services and facilities build out using YFS rack servers 1 st Gen2 nd Gen 3 rd Gen Advanced volume storage Data integrity De-duplication Compression Self-healing Snapshots & clones Storage pools Additional features TCP transport Disconnected clients Event driven server arch. Multiple data streams Extended Attributes Peer to peer data sharing Hypervisor Integration Hardware encryption module YFS hosted storage services and facilities build out using YFS rack servers Base file system platform Large volume support GSS Authentication AES-256 RFC3962 encryption High scalability R/W replication IPv6 Parallel reads Unicode directories Disaster recovery capabilities No single points of failure Departmental file servers Byte range locks Authenticated Fine Grained Coherency Many-to-One Authn to Authz Ids Arbitrary file system import Automated client update services Automated Troubleshooting Tools Mobile clients and SDKs for custom applications Integrated Monitoring and Management Interface Improved Package Management Namespaces Volumes Application deployment Hybrid cloud deployments Integrated Search Named Pipes

OEM Hardware Hardware RAID OEM Partner On-site Service Debian kFreeBSD (Linux with BSD Kernel) Microsoft OEM Storage Server 2008 R2 Volume Location DB + Protection DB File Server Salvager, Vol Mgmt, Backup Monitor

OEM Hardware Hardware RAID OEM Partner On-site Service Debian kFreeBSDMicrosoft OEM Storage Server 2008 Volume Location DB + Protection DB File Server Salvager, Vol Mgmt, Backup Monitor Pooled storage devices

Guest Host Hypervisor Virtual FS Guest Hypervisor Virtual FS Guest Hypervisor Virtual FS YFS cache Virtualized cache access

 iOS applications  Monitoring tools