Solved

PERC 6/i RAID5 adding disks

Posted on 2014-01-10
7
1,282 Views
Last Modified: 2016-11-23
hi community.  Quick question about RAID5 and how they rebuild on the PERC 6/i adapters in a Dell PowerEdge R410.  

I have an R410 with 3 physical disks.

2TB
1TB
250GB

Of course the array only sees 250GB of the two TB drives which gives me a rough total of about 500GB of usable disk space.  My question is this :: if I replace the 250GB drive with a 1TB will the array incorporate the extra disk space after it's rebuilt the array?  Will I end up with 2TB of total usable space without having to create a new VD and lose my existing data?

My hunch is yes, I can replace the 250GB drive with one that is larger and the array will rebuild with the new drive and space allotted as usable space.

Thanks for the help.
0
Comment
Question by:TripapHoniC
  • 4
  • 2
7 Comments
 
LVL 32

Accepted Solution

by:
PowerEdgeTech earned 500 total points
ID: 39772960
No, it won't. The array will remain 250GB. The only thing you will be able to do with the newly available 750GB per disk, is create a second 1.5TB RAID 5 across the disks. This new VD will be seen by the OS as a separate "disk".
0
 

Author Comment

by:TripapHoniC
ID: 39772961
Thanks PowerEdgeTech.  I'm glad I asked.

So the original VD will remain in tact as approximately 500GB of usable disk space and the second VD will be 1.5TB.  I'm using VMware vCenter Server over an ESXi 5.5 foundation so I assume I will just rescan for a new datastore and it will pick up the secondary VD.
0
 
LVL 32

Expert Comment

by:PowerEdgeTech
ID: 39772962
Yep. (I put 250, but meant 500 ;))
0
Optimizing Cloud Backup for Low Bandwidth

With cloud storage prices going down a growing number of SMBs start to use it for backup storage. Unfortunately, business data volume rarely fits the average Internet speed. This article provides an overview of main Internet speed challenges and reveals backup best practices.

 
LVL 88

Expert Comment

by:rindi
ID: 39773054
Some RAID controllers have functions that allow you to expand the array after you have changed the disk and waited for it to finish syncing. But I don't know whether your RAID controller has that function. Also, even if the RAID array has been expanded, your OS's partitions will still be the same. You have to move/extend then either from within the OS or via 3rd party utilities if you don't just want to add new partitions, but rather want them resized.
0
 
LVL 32

Expert Comment

by:PowerEdgeTech
ID: 39775403
rindi ... The PERC 6 does not support this.  It is supported on the H700 and newer/higher.
0
 
LVL 32

Expert Comment

by:PowerEdgeTech
ID: 39775404
Curious as to the reason for the grade of 'B'.
0
 
LVL 88

Expert Comment

by:rindi
ID: 39775426
I thought so, or you would have mentioned it in your first comment. I just wanted to tell the asker that it depends on the raid controller, and even that if the controller supports it, it isn't that easy. A backup, create new array, restore is often faster and easier.
0

Featured Post

NAS Cloud Backup Strategies

This article explains backup scenarios when using network storage. We review the so-called “3-2-1 strategy” and summarize the methods you can use to send NAS data to the cloud

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
Why does my computer not boot? 12 47
ESX 6.0 Best Practices for datastore size 5 76
What processes are using my external hard drive 2 25
Home lab datacenter 9 44
Every server (virtual or physical) needs a console: and the console can be provided through hardware directly connected, software for remote connections, local connections, through a KVM, etc. This document explains the different types of consol…
Moving your enterprise fax infrastructure from in-house fax machines and servers to the cloud makes sense — from both an efficiency and productivity standpoint. But does migrating to a cloud fax solution mean you will no longer be able to send or re…
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…

776 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