http://www.cyberciti.biz/tips This is a Linux sys admin journal by Vivek about sys admin work, Linux tips & tricks, hacks, news and more. Fri, 03 Feb 2012 22:45:35 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 http://www.cyberciti.biz/tips/linux-unix-parallel-nfs.html http://www.cyberciti.biz/tips/linux-unix-parallel-nfs.html#comments Thu, 13 Nov 2008 12:17:31 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=3519 NFS is pretty old file sharing technology for UNIX based system and storage systems. However, it suffers from performance issues. NFSv4.1 address data access issues by adding a new feature called parallel NFS (pNFS) - a method of introducing Data Access Parallelism. The end result is ultra fast file sharing for clusters and high availability configurations.

The Network File System (NFS) is a stalwart component of most modern local area networks (LANs). But NFS is inadequate for the demanding input- and output-intensive applications commonly found in high-performance computing -- or, at least it was. The newest revision of the NFS standard includes Parallel NFS (pNFS), a parallelized implementation of file sharing that multiplies transfer rates by orders of magnitude. ]]> http://www.cyberciti.biz/tips/linux-unix-parallel-nfs.html/feed 2 http://www.cyberciti.biz/tips/centos-rhel-poor-nfs-write-performance.html http://www.cyberciti.biz/tips/centos-rhel-poor-nfs-write-performance.html#comments Fri, 22 Aug 2008 09:41:58 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=2759 A few days ago I noticed that NFS performance between a web server node and NFS server went down by 50%. NFS was optimized and the only thing was updated Red Hat kernel v5.2. I also noticed same trend on CentOS 5.2 64 bit edition.]]> http://www.cyberciti.biz/tips/centos-rhel-poor-nfs-write-performance.html/feed 4 http://www.cyberciti.biz/tips/apache-223-corrupt-file-download-issue.html http://www.cyberciti.biz/tips/apache-223-corrupt-file-download-issue.html#comments Sat, 01 Dec 2007 10:26:01 +0000 Vivek Gite http://www.cyberciti.biz/tips/apache-223-corrupt-file-download-issue.html http://www.cyberciti.biz/tips/apache-223-corrupt-file-download-issue.html/feed 8 http://www.cyberciti.biz/tips/ubuntu-linux-nfs-client-configuration-to-mount-nfs-share.html http://www.cyberciti.biz/tips/ubuntu-linux-nfs-client-configuration-to-mount-nfs-share.html#comments Sun, 04 Jun 2006 08:09:49 +0000 Vivek Gite http://www.cyberciti.biz/tips/ubuntu-linux-nfs-client-configuration-to-mount-nfs-share.html NFS (Network File System) client allows you to access shared directory from Linux client. The computer sharing the directory is called the NFS server (it can be NAS server too) and the computers or devices connecting to that server are called clients. The clients need to use the mount command to access the shared directory.]]> http://www.cyberciti.biz/tips/ubuntu-linux-nfs-client-configuration-to-mount-nfs-share.html/feed 31