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Search results for Tune and Tweak NFS for Top Performance

Unix+clones Tune and Tweak NFS for Top Performance
Post date: June 25, 2005, 20:06 Category: Optimizing Views: 118
Tutorial quote: As promised in our previous NFS article, we will now explore mount options in a bit more detail. We will also talk about differences between NFS implementations among various UNIX flavors, and the wonderful capability automatic mounting provides.
Debian Setting Up A Highly Available NFS Server
Post date: April 1, 2006, 00:04 Category: Network Views: 23
Tutorial quote: In this tutorial I will describe how to set up a highly available NFS server that can be used as storage solution for other high-availability services like, for example, a cluster of web servers that are being loadbalanced. If you have a web server cluster with two or more nodes that serve the same web site(s), than these nodes must access the same pool of data so that every node serves the same data, no matter if the loadbalancer directs the user to node 1 or node n. This can be achieved with an NFS share on an NFS server that all web server nodes (the NFS clients) can access.

As we do not want the NFS server to become another "Single Point of Failure", we have to make it highly available. In fact, in this tutorial I will create two NFS servers that mirror their data to each other in realtime using DRBD and that monitor each other using heartbeat, and if one NFS server fails, the other takes over silently. To the outside (e.g. the web server nodes) these two NFS servers will appear as a single NFS server.

In this setup I will use Debian Sarge (3.1) for the two NFS servers as well as for the NFS client (which represents a node of the web server cluster).
Unix+clones Postfix performance tuning
Post date: May 21, 2005, 07:05 Category: Optimizing Views: 82
Tutorial quote: Postfix is fast out of the box, but like other packages, you can usually tune it to work even faster. Furthermore, there are situations where Postfix may not perform as well as you expected, whether because of hardware or software limitations on the server system or other adverse conditions, such as a big influx of spam or undeliverable mail. This article shows you how to find and analyze the most common performance problems.
Unix+clones Encrypted NFS with OpenSSH
Post date: May 21, 2005, 15:05 Category: Network Views: 44
Tutorial quote: NFS is a widely deployed, mature, and understood protocol that allows computers to share files over a network. The main problems with NFS are that it relies on the inherently insecure UDP protocol, transactions are not encrypted, hosts and users cannot be easily authenticated, and its difficulty in firewalling. This article provides a solution to most of these problems for Linux clients and servers. These principles may also be applied to any UNIX server with ssh installed. This article assumes basic knowledge of NFS and firewalling for Linux.
Gentoo RAID over NFS
Post date: June 17, 2005, 07:06 Category: Network Views: 120
Tutorial quote: This is a HowTo to create a RAID over NFS. In this case RAID5, but can be easily adopted for other RAID levels.
Linux NFS over CIPE-VPN tunnels
Post date: May 23, 2005, 12:05 Category: Network Views: 60
Tutorial quote: The Network File System (NFS) is a standard protocol for sharing file services with Linux and Unix computers. It is a distributed file system that enables local access to remote disks and file systems and is based on the client\server architecture. Although easy to configure, it is typically used only to transfer data over an intranet or LAN because of its transparency and security potholes when exposed to the risks of the Internet. However, it still can be employed -- without compromising security -- to share files over the Internet by configuring it to run on a Virtual Private Network (VPN) connection. This article will show you how to set up NFS to run over a CIPE-VPN connection between two Linux systems.
Unix+clones Considerations for the system architect: Performance
Post date: April 20, 2005, 06:04 Category: Miscellaneous Views: 85
Tutorial quote: For many developers and engineers, performance is often an afterthought. But when a product functions as designed and has proven stability and the right feature mix, success in the marketplace often depends upon performance. Architectural decisions define the ultimate feasible performance of any product. In this article, learn how performance-monitoring technology initially developed for mainframes can help you improve your own code's performance.
Unix+clones X Window Manager Benchmarks (E17 on Top)
Post date: June 9, 2005, 10:06 Category: Benchmarks Views: 130
Tutorial quote: I've been focusing on some stability issues of late in E17, but more importantly - speed. I've been doing a little profiling and shaving off cycles where I can find readily optimizable code. I have E17 starting in 0.52 seconds (from execute to usable desktop). Considering that involves loading and rendering and scaling a complex multi-leayered desktop background, loading multiple useful modules (pager, ibar, start, dropshadow, cpufreq handler, clock, etc.), then that's not too bad.

Now I'm a numbers man. I like numbers. I don't like vague "it's faster than X" or "that's slower than this" statements without numbers to back it up. I also like to play fair. Also given there are no "performance suites" i know of that measure window manager performance, I wrote a quick and dirty one.
Unix+clones Squeeze Your Gigabit NIC for Top Performance
Post date: June 24, 2005, 21:06 Category: Optimizing Views: 135
Tutorial quote: Many new workstations and servers are coming with integrated gigabit network cards, but quite a few people soon discover that they can't transfer data much faster than they did with 100 Mb/s network cards. Multiple factors can affect your ability to transfer at higher speeds, and most of them revolve around operating system settings. In this article we will discuss the necessary steps to make your new gigabit-enabled server obtain close to gigabit speeds in Linux, FreeBSD, and Windows.
Unix+clones How to setup your keyboard's extra keys in X11
Post date: December 29, 2005, 01:12 Category: Desktop Views: 40
Tutorial quote: Well, it's the day after christmas and like me, you got this new keyboard with all those sweet little buttons on top. How to configure that you may ask? Let's explore this together