nixCraft » hard disk 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 Linux: Should You Use Twice the Amount of Ram as Swap Space?http://www.cyberciti.biz/tips/linux-swap-space.html http://www.cyberciti.biz/tips/linux-swap-space.html#comments Wed, 19 Nov 2008 08:50:49 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=3586 Linux and other Unix-like operating systems use the term "swap" to describe both the act of moving memory pages between RAM and disk, and the region of a disk the pages are stored on. It is common to use a whole partition of a hard disk for swapping. However, with the 2.6 Linux kernel, swap files are just as fast as swap partitions. Now, many admins (both Windows and Linux/UNIX) follow an old rule of thumb that your swap partition should be twice the size of your main system RAM. Let us say I've 32GB RAM, should I set swap space to 64 GB? Is 64 GB of swap space really required? How big should your Linux / UNIX swap space be? ]]> http://www.cyberciti.biz/tips/linux-swap-space.html/feed 58 Record Labels To Sue SourceForge Open Source Project Hosting Platformhttp://www.cyberciti.biz/tips/record-labels-sue-vuze-limewire-sourceforge.html http://www.cyberciti.biz/tips/record-labels-sue-vuze-limewire-sourceforge.html#comments Sun, 16 Nov 2008 08:35:05 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=3548 Consider this ... the stupidest example of law. From the blog post:
French record labels have received the green light to sue four US-based companies that develop P2P applications, including the BitTorrent client Vuze, Limewire and Morpheus. Shareaza is the fourth application, for which the labels are going after the open source development platform SourceForge.
]]> http://www.cyberciti.biz/tips/record-labels-sue-vuze-limewire-sourceforge.html/feed 1 Seagate Barracuda: 1.5TB Hard Drive Launchedhttp://www.cyberciti.biz/tips/seagates-barracuda-15tb-hard-disk.html http://www.cyberciti.biz/tips/seagates-barracuda-15tb-hard-disk.html#comments Tue, 21 Oct 2008 18:53:46 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=3149 Wow, this is a large size desktop hard disk for storing movies, tv shows, music / mp3s, and photos. You can also load multiple operating systems using vmware or other software for testing purpose. This hard disk comes with 5 year warranty and can transfer at 300MB/s. But, How reliable is the 1.5TB hard disk?]]> http://www.cyberciti.biz/tips/seagates-barracuda-15tb-hard-disk.html/feed 1 How To Avoid Sudden Outburst Of Backup Shell Script / Program Disk I/Ohttp://www.cyberciti.biz/tips/linux-set-io-scheduling-class-priority.html http://www.cyberciti.biz/tips/linux-set-io-scheduling-class-priority.html#comments Tue, 03 Jun 2008 13:13:44 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=2339 Describes how to deal with high disk I/O generating scripts or programs using ionice and CFQ scheduling class under Linux.]]> http://www.cyberciti.biz/tips/linux-set-io-scheduling-class-priority.html/feed 9 Linux Find SCSI Hard Disk Model, Serial Number, Size, and Total Sectors Informationhttp://www.cyberciti.biz/tips/sdparm-linux-scsi-device-attribute.html http://www.cyberciti.biz/tips/sdparm-linux-scsi-device-attribute.html#comments Mon, 26 May 2008 11:22:27 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=2316 http://www.cyberciti.biz/tips/sdparm-linux-scsi-device-attribute.html/feed 3 Splashtop to Ship ASUS Motherboards With Linux Preinstalled On BIOShttp://www.cyberciti.biz/tips/splashtop-asus-linux-motherboard.html http://www.cyberciti.biz/tips/splashtop-asus-linux-motherboard.html#comments Thu, 15 May 2008 11:42:05 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=2296 http://www.cyberciti.biz/tips/splashtop-asus-linux-motherboard.html/feed 0 Linux Disk Benchmarking – IO Performance With fio Toolhttp://www.cyberciti.biz/tips/linux-disk-benchmarking-io.html http://www.cyberciti.biz/tips/linux-disk-benchmarking-io.html#comments Wed, 09 Apr 2008 14:41:40 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=2190 http://www.cyberciti.biz/tips/linux-disk-benchmarking-io.html/feed 0 Linux Ramback: Use a Terabyte of RAMhttp://www.cyberciti.biz/tips/linux-ramback-patch.html http://www.cyberciti.biz/tips/linux-ramback-patch.html#comments Mon, 24 Mar 2008 09:26:12 +0000 Vivek Gite http://www.cyberciti.biz/tips/linux-ramback-patch.html http://www.cyberciti.biz/tips/linux-ramback-patch.html/feed 2 OS X Love: Apple MacBook Air ~ The world’s thinnest notebookhttp://www.cyberciti.biz/tips/apple-macbook-air.html http://www.cyberciti.biz/tips/apple-macbook-air.html#comments Wed, 16 Jan 2008 15:22:21 +0000 Vivek Gite http://www.cyberciti.biz/tips/apple-macbook-air.html http://www.cyberciti.biz/tips/apple-macbook-air.html/feed 7 How to: Upgrade Fedora Linux From 32-bit System to 64-bit Version w/o Reinstalling Serverhttp://www.cyberciti.biz/tips/upgrade-linux-from-32-to-64-bit.html http://www.cyberciti.biz/tips/upgrade-linux-from-32-to-64-bit.html#comments Sun, 13 Jan 2008 11:26:37 +0000 Vivek Gite http://www.cyberciti.biz/tips/upgrade-linux-from-32-to-64-bit.html http://www.cyberciti.biz/tips/upgrade-linux-from-32-to-64-bit.html/feed 0 How do I find out Linux Disk utilization?http://www.cyberciti.biz/tips/linux-disk-performance-monitoring-howto.html http://www.cyberciti.biz/tips/linux-disk-performance-monitoring-howto.html#comments Mon, 17 Dec 2007 14:24:49 +0000 Vivek Gite http://www.cyberciti.biz/tips/linux-disk-performance-monitoring-howto.html http://www.cyberciti.biz/tips/linux-disk-performance-monitoring-howto.html/feed 12 Download of the day: Fedora Linux Games Live DVDhttp://www.cyberciti.biz/tips/download-fedora-linux-games-live-dvd.html http://www.cyberciti.biz/tips/download-fedora-linux-games-live-dvd.html#comments Mon, 12 Nov 2007 07:05:07 +0000 Vivek Gite http://www.cyberciti.biz/tips/download-fedora-linux-games-live-dvd.html Download DVD ISO and Bittorent files]]> http://www.cyberciti.biz/tips/download-fedora-linux-games-live-dvd.html/feed 0 Test If Linux Server SCSI / SATA Hard Disk Going Badhttp://www.cyberciti.biz/tips/linux-find-out-if-harddisk-failing.html http://www.cyberciti.biz/tips/linux-find-out-if-harddisk-failing.html#comments Wed, 04 Jul 2007 20:16:21 +0000 Vivek Gite http://www.cyberciti.biz/tips/linux-find-out-if-harddisk-failing.html One of our regular sends us a question:
How can I test if my hard disk is going bad? I see few errors in /var/log/messages file.
I/O errors in /var/log/messages indicates that something is wrong with the hard disk and it may be failing. You can check hard disk errors using smartctl command, which is control and monitor utility for SMART disks under Linux / UNIX like operating systems.]]> http://www.cyberciti.biz/tips/linux-find-out-if-harddisk-failing.html/feed 11 HowTo: Flashing Your System BIOS Under Linuxhttp://www.cyberciti.biz/tips/howto-flash-your-system-bios-under-linux.html http://www.cyberciti.biz/tips/howto-flash-your-system-bios-under-linux.html#comments Thu, 31 Aug 2006 19:37:06 +0000 Vivek Gite http://www.cyberciti.biz/tips/howto-flash-your-system-bios-under-linux.html The BIOS is Basic Input/Output System used by a computer which embedded on a chip on a computer's motherboard. It is used to controls various devices connected to your computer. When you turns on the computer, the BIOS starts up and performs a Power-On Self Test (POST). The BIOS will check all devices connected to your computer such as the CPU, RAM, the video card, the sound card and so on. Once the post test has completed, the BIOS will looks for Linux operating systems on the hard drive. At this point, the Linux takes over control of your computer and finishes starting up system in GUI or text based mode.]]> http://www.cyberciti.biz/tips/howto-flash-your-system-bios-under-linux.html/feed 1 Re-read The Partition Table Without Rebooting Linux Systemhttp://www.cyberciti.biz/tips/re-read-the-partition-table-without-rebooting-linux-system.html http://www.cyberciti.biz/tips/re-read-the-partition-table-without-rebooting-linux-system.html#comments Mon, 08 May 2006 13:35:53 +0000 Vivek Gite http://www.cyberciti.biz/tips/re-read-the-partition-table-without-rebooting-linux-system.html If you are using hot swappable hard disk and created new partition using fdisk then you need to reboot Linux based system to get partition recognized. Without reboot you will NOT able to create filesystem on your newly created or modified partitions with the mke2fs command. However with partprobe command you should able to create a new file system without rebooting the box. It is a program that informs the operating system kernel of partition table changes, by requesting that the operating system re-read the partition table.]]> http://www.cyberciti.biz/tips/re-read-the-partition-table-without-rebooting-linux-system.html/feed 20 Configure Ubuntu Linux GRUB to load FreeBSDhttp://www.cyberciti.biz/tips/configure-ubuntu-grub-to-load-freebsd.html http://www.cyberciti.biz/tips/configure-ubuntu-grub-to-load-freebsd.html#comments Fri, 17 Mar 2006 21:06:00 +0000 LinuxTitli http://www.cyberciti.biz/tips/configure-ubuntu-grub-to-load-freebsd.html http://www.cyberciti.biz/tips/configure-ubuntu-grub-to-load-freebsd.html/feed 14