(Show all RAID articles . . .
Headlines | Linux | Apps | Coding | BSD | Admin | News
Information for Linux System Administration 

Building Linux RAID Filesystems


RAID 10 was once known as the 'rich man's RAID' because it requires twice as much disk as a normal, non-redundant filesystem. In my use of RAID 10, I've always used more than double the disk space because I also use hot spare drives.

The extra cost is worth it in many cases, however, because of the excellent I/O performance and extremely high level of reliability of the filesystems. Now, that cost is far lower than it once was because the price of disk drives has dropped so far in the last few years. If you're not already using RAID 10, now might be a good time to reevaluate the option.
There are also the file systems /home, /opt, /var, /tmp, /usr/local and others to consider. When planning RAID, remember that usually UNIX filesystems like /home, /opt, and /usr/local obviously keep "slow-changing" data, and file systems like /var "fast-changing" data. And for /tmp, well, we don't need to take care of it at all after a system crash. So, I recommend that for /home, /opt, and /usr/local the best choice will be RAID 5 and for /var its preferable to apply RAID 0 or RAID 10. Remember, everything you decide about RAID configuration should come from your system targets and common sense.
 read more | mail this link | score:7217 | -Ray, September 1, 2001 (Updated: October 11, 2003)
More Linux articles...

Abstract Art Prints for Sale

linux headlines

Korora 19 review

4 third-party repositories for Fedora 19

Cinnarch preview

Upgrade Fedora 17 to 18 with FedUp

Tutorial: Install Debian 7 (testing) with debootstrap from a Grml live Linux

Dual-boot Windows 7 and Ubuntu 12.04 on a PC with UEFI board, SSD and HDD

Linux Mint 13 KDE and Xfce preview


Firefox sidebar

Site map

Site info

News feed


(to post)


Articles are owned by their authors.   © 2000-2012 Ray Yeargin