?
Solved

how to rebuild RAID 10 array

Posted on 2004-10-03
5
Medium Priority
?
991 Views
Last Modified: 2008-01-09
I have 4x120GB SCSI hard disks grouped together using RAID 10 on Red Hat ES Linux 3.0.
During a power cut, one of the disks failed on me.  The system recovered (as RAID 10 is
designed to do!), however the system is now at risk because there are only three working disks.

Can anyone describe or point me to an article that describes how I can replace this
disk and rebuild the array.

Would appreciate step by step guidance.
Many thanks
0
Comment
Question by:u9707118
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
5 Comments
 
LVL 15

Expert Comment

by:Cyber-Dude
ID: 12212329
Go to the following link:
http://www.runtime.org/raid.htm

Reconstruct RAID 0 at fierst that RAID 1.

Cyber
0
 
LVL 56

Accepted Solution

by:
andyalder earned 2000 total points
ID: 12212424
use raidhotadd to put the drive back into the array.

See section 8 of http://www.tldp.org/HOWTO/Software-RAID-HOWTO.html. Note you might have to use raidhotremove to take the faulty drive out of the array but make sure you remove the right one! It might already be rebuilding, have you looked at /proc/mdstat to check the status?
0
 
LVL 56

Expert Comment

by:andyalder
ID: 12212475
Or there's another howto here,
www-106.ibm.com/developerworks/eserver/library/es-SW_RAID_LINUX.html?ca=dnp-328
0

Featured Post

Veeam Disaster Recovery in Microsoft Azure

Veeam PN for Microsoft Azure is a FREE solution designed to simplify and automate the setup of a DR site in Microsoft Azure using lightweight software-defined networking. It reduces the complexity of VPN deployments and is designed for businesses of ALL sizes.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

AWS Glacier is Amazons cheapest storage option and is their answer to a ‘Cold’ storage service.  Customers primarily use this service for archival purposes and storage of infrastructure backups.  Its unlimited storage potential and low storage cost …
In this article we will learn how to backup a VMware farm using Nakivo Backup & Replication. In this tutorial we will install the software on a Windows 2012 R2 Server.
This video teaches viewers how to encrypt an external drive that requires a password to read and edit the drive. All tasks are done in Disk Utility. Plug in the external drive you wish to encrypt: Make sure all previous data on the drive has been …
This tutorial will walk an individual through the process of installing the necessary services and then configuring a Windows Server 2012 system as an iSCSI target. To install the necessary roles, go to Server Manager, and select Add Roles and Featu…
Suggested Courses

718 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question