Solved

IBM RAID Check

Posted on 2010-09-01
10
1,258 Views
Last Modified: 2016-12-08
Hi EEs,

We have a server, IBM X3200, and its running 2 SATA hard drives.
How do we go about checking to see if its running RAID 0 or RAID 1 or even both?

I checked the BIOS and its appears to be in RAID mode, however not too sure what mode it is running on. I installed ServeRAID manager, and it didnt pick up any controller config for some reason.

Can anyone share some lights on this?

Cheers,
Goraek
0
Comment
Question by:goraek
10 Comments
 
LVL 6

Expert Comment

by:Nuttycomputer
ID: 33576406
If you know the size of the drives then you can determine by simply going to "My Computer" if running windows. RAID configures disks in a logical format and that is the part the OS sees.

So if you know you have for example two 500 GB drives and windows only shows one 500 GB Logical Drive you can deduce it's running in Mirrored. If it's showing one 1 TB Drive than you can deduce it's running in Striped.

Additionally depending on your RAID Controller the Raid Specific BIOS will have more information. It is usually accessed during the POST process via (Alt+x) (Ctrl+s) (F4) or several other combinations depending on the raid controller manufacturer.
0
 
LVL 47

Expert Comment

by:dlethe
ID: 33576445
If it did not pick up the config, most likely it is in JBOD mode. (i.e non-RAID)

If it picked up 2 disk drives that represent the actual names of the disk drives, i.e, Seagate STxxxxxx  then the controller is not presenting any RAID device.  If the O/S says there is only one device, and the size is larger than the individual capacity of either physical drive, then it MUST be RAID0.

That leaves you with possibility of RAID1 if only 1 disk is presented, the make/model does not match Seagate, WD, Hitachi, etc. whatever you have, and capacity is <= 1/2 of the actual total number of blocks found in both disks when added together.
0
 
LVL 2

Author Comment

by:goraek
ID: 33576590
We have two 160GB SATA drives, and the OS has only picked up one disk at a total of 148GB.
Checked the BIOS but doesnt give a lot of information, I'm not too sure how to check... however it does have RAID on both hard drives - how do you know if its RAID 0 or 1? Even on the ServeRAID manager it doesnt show any disks at all..... have I downloaded the wrong software?

I'm trying to determine whether its the config is in RAID mode or not...
0
PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

 
LVL 47

Expert Comment

by:dlethe
ID: 33576657
What is the make/model of the disk drive that the O/S tells you that you have?   Not the BIOS, your operating system
0
 
LVL 2

Author Comment

by:goraek
ID: 33592218
Its weird, it doesnt say what model/make it is, it just says its Logical volumn... its a long name....
Could it be because it has a different software? I know that some software doesnt support the older model controllers...
0
 
LVL 47

Expert Comment

by:dlethe
ID: 33592276
This is exactly what it is supposed to do for a hardware-RAID based solution (had to confirm as your post left it open for interpretation).

 It tells the O/S you just have one disk drive, and spares it the gory details on health, configuration, etc.
So now we know that you have either:

1. A broken (hardware-based) RAID1 (where 1 disk failed)
2. A healthy (hardware-based) RAID1

You do NOT have RAID0.
If you want to know if you have a healthy RAID1 vs degraded (i.e. 1 disk failed), you are going to just have to go to the BIOS or look for tell-tale signs like blinking lights on one disk drive, funny sounds, one not spinning up, etc.


0
 
LVL 2

Author Comment

by:goraek
ID: 33602411
Thanks for the info.
How exactly do I check if the disk is faulty in the BIOS?
This is an IBM x3200.

I went into the manage array and it doesnt show anything with fail disk.
0
 
LVL 47

Expert Comment

by:dlethe
ID: 33603133
If the controller failed the disk, then it is bad.
0
 
LVL 16

Accepted Solution

by:
uescomp earned 500 total points
ID: 33637376
You probably have the wrong version of the RAID manager software.  Download the correct version of IBM systems Manager from here:

http://www-03.ibm.com/systems/software/director/downloads/mgmtservers.html

and then reinstall it and it should tell you the status of the RAID array.  You may have to do a custom install as some versions do not install the RAID part by default.  You can also check the status from the BIOS like the other guys said, but the RAID manager software is more convenient because you can access if from the OS.
0
 
LVL 2

Author Closing Comment

by:goraek
ID: 33671754
Thanks!
0

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

Suggested Solutions

How to update Firmware and Bios in Dell Equalogic PS6000 Arrays and Hard Disks firmware update.
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 Micro Tutorial explains how to clone a hard drive using a commercial software product for Windows systems called Casper from Future Systems Solutions (FSS). Cloning makes an exact, complete copy of one hard disk drive (HDD) onto another d…
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…

828 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