LinuxQuestions.org
Go Job Hunting at the LQ Job Marketplace
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Networking
User Name
Password
Linux - Networking This forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.

Notices



Reply
 
Search this Thread
Old 01-18-2006, 03:59 PM   #1
Daveinflorida
LQ Newbie
 
Registered: Jan 2006
Posts: 3

Rep: Reputation: 0
Raid Level 5 HELP!! Please...


Hello All,
I am very new to linux, please bear with me...
I am familiar with Most Windows OS's.

A company contacted me and is running Linux on a Raid Level 5 Server, one of the drives has been failing for a month and the IT guy never new it, the system lost power and shut down, now the program that was being used is not accessible because of the lost data.
If I remember correctly, a Raid level 5 system is supposed to use the other 2 drives as a backup? What do I need to do to restore the data onto another working drive?
Please, any help would be appreciated.
 
Old 01-18-2006, 04:28 PM   #2
acid_kewpie
Moderator
 
Registered: Jun 2001
Location: UK
Distribution: Gentoo, RHEL, Fedora, Centos
Posts: 43,415

Rep: Reputation: 1968Reputation: 1968Reputation: 1968Reputation: 1968Reputation: 1968Reputation: 1968Reputation: 1968Reputation: 1968Reputation: 1968Reputation: 1968Reputation: 1968
raid 5 uses a number of drives, with an additional one for resilience. the minimum is three, but many more can be used. if one of three drives has failed, the system will continue to function. if more than one fails, data is lost and the file system can not be easily recovered, if at all. The point is you don't get this far in the first place. but you really need to provide a LOT more information about what's actually going on.. what kind of raid is even being used? hardware or software? i would expect that IF this can be recovered then it would most lieky be tricky to do, and if you have little to no linux experience, i doubt you'll be able to recover a crashed raid array.
 
Old 01-18-2006, 04:49 PM   #3
Daveinflorida
LQ Newbie
 
Registered: Jan 2006
Posts: 3

Original Poster
Rep: Reputation: 0
Quote:
Originally Posted by acid_kewpie
raid 5 uses a number of drives, with an additional one for resilience. the minimum is three, but many more can be used. if one of three drives has failed, the system will continue to function. if more than one fails, data is lost and the file system can not be easily recovered, if at all. The point is you don't get this far in the first place. but you really need to provide a LOT more information about what's actually going on.. what kind of raid is even being used? hardware or software? i would expect that IF this can be recovered then it would most lieky be tricky to do, and if you have little to no linux experience, i doubt you'll be able to recover a crashed raid array.
Thanks, I will be getting the server tonight, will find out more...
 
Old 01-20-2006, 02:04 PM   #4
Daveinflorida
LQ Newbie
 
Registered: Jan 2006
Posts: 3

Original Poster
Rep: Reputation: 0
Update

In fact it was a Snap Server with 4 drives, drive 1 failed a month ago, drive 2 recently failed when the electric went out and broke the raid, I am getting the raw data off of drives 1 - 3 - and 4, even tho drive 1 failed, I am able to retrieve the data from it, so they will have atleast something to use.
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
how do i build soft raid 0 in harddrive level without partion... my-unix-dream Linux - Newbie 1 04-30-2005 07:48 PM
Perc3Di SCSI RAID + Adaptec 2810SA RAID = Fatal Grub Error? LinuxOnTheEdge Linux - General 2 03-19-2005 03:35 PM
does linux support the sata raid and ide raid in k7n2 delta ilsr? spyghost Linux - Hardware 10 04-16-2004 06:27 AM
Setting up a Raid level 1 in SuSE 8.2 browns1977 Linux - Newbie 2 11-21-2003 10:23 AM
moving system from ide software raid to new box with scsi raid ftumsh Linux - General 0 10-28-2003 10:34 AM


All times are GMT -5. The time now is 01:05 AM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
identi.ca: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration