Published on August 6, 2007
Ratcheting Up Global Namespace Performance with Centralized Storage Caching
NAS and SAN Architectures File System 1 File System 1 File System 2 File System 3 Block-based SAN device File-based NAS device SAN Architecture NAS Architecture System 3 Space System 2 Space System 1 Space
NAS Lends Itself To Client Growth and Sharing File System 1 File-based NAS device Easily add clients with shared file system approach Eventually, new NAS devices are required, but they maintain unique file systems and must be managed independently 2 3
Global Name Spaces Ease NAS Expansion File-based NAS devices Global Name Space Easily add clients with global namespace approach Easily add file servers with global namespace approach File System 1 File System 2 File System 3 File System 4 File System 5 File System n
Caching and Namespace Performance Low Latency IOPS Throughput Global Namespace Disks Shared Namespace File System Performance Capacity Namespace performance Memory Caching performance
Walking the Directory Tree Global Namespaces Can Add to Performance Concerns Requested content: dog.file /quick /brown /fox /jumped Sample NFS directory lookup / quick / brown / fox / jumped / over / the / lazy / dog.file Additional NFS operation
Centralized Storage Caching Accelerates Global Name Spaces Application Servers Scalable Caching Appliance NFS File Systems with Global Namespace Legend High volume operations from cache Low volume operations to/from filers
High volume operations from cache
Low volume operations to/from filers
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Global Import/using Aliasing in .NET. ... we essentially want to split it up into three sections by using ... Define global namespace/variable within a ...
... a global namespace is used primarily by services in client/server applications. ... High performance computing ... Get set up Sign up ...
This metaphor illustrates the concept of namespaces. A namespace ... In the global namespace ... Bonus course Introduction to Git is yours when you take up ...
... fallback to global function/constant (PHP 5 >= 5.3.0) Inside a namespace, ... up. down. 9 markus at ...
... whether you use anything else from the module or not. There is also no performance ... up sys in your global namespace ... import module ... reload ...
One of the primary motivations for defining an XML namespace is to ... a namespace: one for global ... XML user, the XML Center provides you up-to ...
Can my DFS namespace keep up with the throughput/frequency of operations ... you see an additional performance counter set: 3. DFS Namespace Service API ...