Failed Raid 5 Replacement Question

Posted on 2005-03-16
Medium Priority
Last Modified: 2010-04-03
Hi all,

I have a server with 3 drives configed for RAID 5. One of the drives just failed and I need to replace it. We have other hard drives from decommissioned servers that  use identical hardware (hard drives are the same), but I believe there might be data on these drives. The data on the decommissioned servers is no longer and issue so I would like to use one of these drives to replace the bad one. Since this drive may have data written on it, can I just simply pop it in the server and expect the rebuild to overwrite old data?

Question by:Rechi676
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
LVL 88

Accepted Solution

rindi earned 375 total points
ID: 13559063
Normally the raid should just be rebuilt, but depending on the controller, you may be asked if you are sure you want the "new" disk to be overwritten. Older Controllers will just overwrite.
LVL 16

Expert Comment

ID: 13559326
Yes, as rindi stated.
LVL 10

Expert Comment

ID: 13559688
you do need to make sure the drive you put in is meets the same specifications as the drive you too out though.  For example if the current drive is U320 15k rpm 36gig scsi drive, then the drive you put in MUST be U320 15k and 36 gig or larger.  If you put in a drive larger than the original you will be wasting the remainder of the space.
LVL 88

Expert Comment

ID: 13562237

Featured Post

Efficient way to get backups off site to Azure

This user guide provides instructions on how to deploy and configure both a StoneFly Scale Out NAS Enterprise Cloud Drive virtual machine and Veeam Cloud Connect in the Microsoft Azure Cloud.

Question has a verified solution.

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

The question appears often enough, how do I transfer my data from my old server to the new server while preserving file shares, share permissions, and NTFS permisions.  Here are my tips for handling such a transfer.
Many businesses neglect disaster recovery and treat it as an after-thought. I can tell you first hand that data will be lost, hard drives die, servers will be hacked, and careless (or malicious) employees can ruin your data.
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
Course of the Month9 days, 11 hours left to enroll

762 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