![]() 6 Accessing Data in On-Premise Storage Systems 6Ĩ Local Storage Most common for laptops, desktops, mobile devices, server OS boot disks Typically formatted with a file system Invaluable to manage a single device (or maybe a few with LVM) Varying levels of availability, durability, scalability, etc, supported All limited to a single node E.g., Ext4, XFS, NTFS, HFS+, BtrFS, ZFS E.g., Cannot support VM or container migration, support 1000s of applications, etc, etc In your research, think about the real benefits of further optimizing local storage How many pressing problems are left to be solved? Only incremental gains? Common to be used as a building block in higher level storage systems 8ĩ Shared Storage Supports any kind of client device Independent Scaling of clients Supports any type of network and network/file protocol Network Independent Scaling of storage bandwidth and capacity SSD Fast Disk Slow Disk Tape Supports any kind of storage device 9ġ0 Block Shared Storage Used to dominate, now mostly shrinking.except FC continues to have very low latency, and so finding new life with Flash storage systems iscsi still very popular for VMs iscsi/fc/fcoe (and others) FibreChannel/Ethernet Typically in pairs for H/A SSD Fast Disk Slow Disk Tape 10ġ1 Parallel and Scale-out File Systems Scalability (all dimensions) Performance (all dimensions) Support general applications and middleware Make managing billions of files, TB/s of bandwidth, and PBs of data *easy* Commercial Proprietary File Access Protocol Infiniband/Ethernet Scale-out as needed HPC. ![]()
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