Sponsored Content
Operating Systems Linux Help Setting up Linux Raid Server Post 302518456 by DGPickett on Friday 29th of April 2011 04:54:35 PM
Old 04-29-2011
Often, the bootstrap is on a simple disk, and the RAID is dedicated to the application. For software RAID, I wonder if that is a requirement, since you need to boot the software to get it together. Remember that raid5 is not churn-friendly or small-block-random efficient, so many shops put high-churn and small block-random data on mirrors, sometimes striped for more bandwidth. Also, the controller(s) can be a bottleneck. Even with lots of RAM, random operations on large data sets will fill RAM uselessly, and fsync() of RDBMS Commit and other critical files (postfix email) waits for magnetic completion. A shot of SSD might be a great complement. Sometimes, you can shadow the SSD with RAID5 hierarchically, so only the most accessed bits move to SSD. Too much modified data in RAM in a liability!
 

9 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

need help with setting up linux server

Hello, I recently got my first "real" job, i come from a *microsoft* world, I'm being asked to setup from scratch a database and a webserver that allows users to view/add/edit data (intranet). I installed Ubuntu Server 7.10 which comes with LAMP (apache 2.*, mysql5.* and php 5.*) The only... (2 Replies)
Discussion started by: elzalem
2 Replies

2. Filesystems, Disks and Memory

Adding RAID to server

Hi, I have a server that I am adding a RAID that we purchased to. The server works fine. It is running Fedora 7 and is a Dell Precision 690. When the RAID is attached, it boots up and says the following: Controller Bus #00, Device#1F, Function#02: 00 Ports No device found AHCI BIOS not... (0 Replies)
Discussion started by: user23
0 Replies

3. Red Hat

linux server with raid controller card

I am planning on building a fedora box with raid controller (database server). Is anybody done that ? also what kind of software do you need to backup and recover data. (1 Reply)
Discussion started by: amir07
1 Replies

4. UNIX for Dummies Questions & Answers

efficient raid file server

I need to put together a RAID1 file server for use by Windoze systems. I've built zillions of windows systems from components. I was a HPUX SE for a long time at HP, but have been out of the game for years. I've got an old workhorse mobo FIC PA-2013 with a 450 MHz K6 III+ I could use, but I'd... (2 Replies)
Discussion started by: pcmacd
2 Replies

5. Solaris

Setting up bootblock on RAID 0 SVM

Hi All! I'm running Solaris 10 and SPARC and using Let me give a bit of background before asking my question: I have created a RAID 0 (stripe) on 2 disks, I have the OS running on a third disk and I have now performed a ufsdump / ufsrestore from my third disk to the RAID 0 disks... (7 Replies)
Discussion started by: Keepcase
7 Replies

6. Hardware

Raid 0 on database server

Hi guys. if we want to use SSD drives on a database server, can we use RAID 0 configuration because of their reliability? (3 Replies)
Discussion started by: majid.merkava
3 Replies

7. Hardware

3ware RAID server

We have a 3ware RAID server at work, and as the appointed systems administrator (by virtue of being the one with the most knowledge) I've taken on the job of maintaining it. I've installed smartmontools on it to keep an eye on the drives and run scans every day, and looking at the data from the... (0 Replies)
Discussion started by: Krendoshazin
0 Replies

8. Red Hat

Setting Up live FTP Server with Static IP in Red-Hat Linux 6

Hi Guys, I want to some guidance from you in setting up the Live FTP server in Redhat Linux 6 with Static IP 120.50.150.50. Now should I set my Static Public IP directly to my Linux machine? If so what whould be my sunbet mask? Is any type of natting required here? if so where would... (2 Replies)
Discussion started by: manalisharmabe
2 Replies

9. SCO

Backup/RAID of HD on Old UNIX Server

I need to be able to make a backup image of an OLD UNIX server HD where I can restore the complete HD from scratch if (when) the HD fails. This server runs the accounting system for a company. I can and have backed the data up via local FTP, but O/S and Apps are so old that I am not sure I could... (21 Replies)
Discussion started by: chrishouse
21 Replies
RAIDFILE-CONFIG(8)						    Box Backup							RAIDFILE-CONFIG(8)

NAME
raidfile-config - Configure Box Backup's RAID files SYNOPSIS
raidfile-config config-dir blocksize dir1 [dir2 [dir3]] DESCRIPTION
raidfile-config creates a raidfile.conf file for Box Backup. This file holds information about the directories used to store backups in. Box Backup supports userland RAID, in a restricted RAID5 configuration, where 3 and only 3 'drives' are supported. You can read more about RAID5 (and other RAID-levels) here[1]. Parameters The parameters are as follows: config-dir The directory path where configuration files are located. Usually this is /etc/box. raidfile.conf will be written in this directory. blocksize The block size used for file storage in the system, in bytes. Using a multiple of the file system block size is a good strategy. Depending on the size of the files you will be backing up, this multiple varies. Of course it also depends on the native block size of your file system. dir1 The first directory in the built-in RAID array. dir2 The second directory in the built-in RAID array. If you are not using the built-in RAID functionality, this field should be ignored. You should not use the built-in RAID if you have a hardware RAID solution or if you're using another type of software RAID (like md on Linux). dir3 The third directory in the built-in RAID array. The same notes that apply to dir2 also apply to dir3. Note that there are currently no way to add multiple disk sets to the raidfile.conf file using command line tools, etc. See raidfile.conf(5) for details on adding more disks. BUGS
If you find a bug in Box Backup, and you want to let us know about it, join the mailing list[2], and send a description of the problem there. To report a bug, give us at least the following information: o The version of Box Backup you are running o The platform you are running on (hardware and OS), for both client and server. o If possible attach your config files (bbstored.conf, bbackupd.conf) to the bug report. o Also attach any log file output that helps shed light on the problem you are seeing. o And last but certainly not least, a description of what you are seeing, in as much detail as possible. FILES
raidfile-config generates the raidfile.conf(5) file. SEE ALSO
bbstored-config(8), bbstored.conf(5), raidfile.conf(5) AUTHORS
Ben Summers Per Thomsen James O'Gorman NOTES
1. here http://en.wikipedia.org/wiki/Redundant_array_of_independent_disks#RAID_5 2. mailing list http://lists.warhead.org.uk/mailman/listinfo/boxbackup Box Backup 0.11 10/28/2011 RAIDFILE-CONFIG(8)
All times are GMT -4. The time now is 01:59 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy