Solved

Adaptec RAID 51645 Degraded

Posted on 2010-09-01
7
1,001 Views
Last Modified: 2012-05-10
Hello,
We purchased a Adaptec RAID 51645 SATA card a while back and had 16 500GB hard drives attached to it. A few days ago we decided to purchase new WD 2TB hard drives and replace all other 500GB drives. We deleted the array and tried creating another RAID 5 on all drives. For some reason the RAID controller would not see all of the drives, and we would switch them around on the server and it would then see them when initializing them. We then noticed that the firmware on the RAID controller was old so we upgraded it to the latest build of 17911 from 15720. We started the process again but when it starts building the array, it gets to about 1% and then gives a degraded status. The new hard drives are in the compatability list for this controller and are working fine, but for some reason the RAID controller is not completing the array. Can you please help?? I'm not sure what else to do.

Thank you..
0
Comment
Question by:serg2626
7 Comments
 
LVL 11

Expert Comment

by:SemperWiFi
ID: 33581187
From what you wrote, you checked the compatibility of the drive model to the controller. This is good. But have you checked the compatibility of drive firmware version with the controller firmware version? Having an issue here can cause many problems.

Additionally, be sure your backplane firmware is up to date as well (in fact you may just want to update everything including MB BIOS).

The Adaptec controllers have an option in the BIOS 'Verify Media' which happens to be a great drive test. I suggest after getting all of your firmware up to date, run Verify Media on each drive one at a time from the same drive bay. Once this passes then take one of the tested good drives and rerun Verify Media on the same drive in each different bay.

Post findings - I'll be waiting.
0
 
LVL 13

Expert Comment

by:IT-Monkey-Dave
ID: 33581449
With 16 brand new 2TB drives there's a fairly good chance of having a "dud".  See if you can pinpoint a particular drive that's failing.  I concur with SemperWiFi's advice.  Upgrade all firmware, then test all the drives to make sure they're solid, then move on to creating the array.
0
 

Author Comment

by:serg2626
ID: 33588601
I found the Super Micro server i'm running it on has a expander board that requires all drives to be on 1.5gb speed instead of 3.0gb which I had it on. I will be testing this today to see if it resolves the issue. SemperWifi, you were close on the resolution. I will test today and will let you know the results.

Thank you.
0
Best Practices: Disaster Recovery Testing

Besides backup, any IT division should have a disaster recovery plan. You will find a few tips below relating to the development of such a plan and to what issues one should pay special attention in the course of backup planning.

 
LVL 13

Expert Comment

by:IT-Monkey-Dave
ID: 33588645
Hmm.  Wouldn't the SATA bus speed 1.5/3.0 be determined by the Adaptec board since that's what the drives are directly connected to?  Maybe I'm misunderstanding something.
0
 
LVL 11

Expert Comment

by:SemperWiFi
ID: 33592441
@ IT-Monkey-Dave - The drives are not connected directly to the controller (as the case in most servers). They are connected via a backplane, this case sounds like a backplane with an extender midplane (also rather typical). Either way, while these are not typically adjustable devices they are still controlled by an instruction set firmware. Because of this they weigh in on the compatibility topic. Sometimes when firmware versions are not compatible it can cause temporary and often random communication failures resulting in drives simply dropping off an array. Adaptec controllers, as with some others, are very good about not being overly sensitive to this but if it is a bit major then a buggy we will go.

@ serg2626 - The 1.5 rate limitation you discovered can cause as many problems since the instruction path is set to 1.5 it wants only 1.5. I would check for a newer firmware version to see if they dealt with 3.0 compatibility. Otherwise put those jumpers back on and you should be set.
0
 
LVL 13

Expert Comment

by:IT-Monkey-Dave
ID: 33592473
@SemperWiFi: OK, that makes total sense.  Didn't occur to me the drives would be communicating through a backplane.  As you said: Firmware updates all around, then re-assess.
0
 
LVL 4

Accepted Solution

by:
whoami earned 500 total points
ID: 33592959
I agree with semper fi you are most likely seeing a drive that is on the compatibility list but the firmware version that is on your drive is not.  For adaptec cards not all firmwares that drives ship with are compatible just because the drive is on the list.


I have several of these Adaptec controllers and have had issues using Desktop class drives in them due to firmware versions.  Including sometimes having to call the drive manufacturer and get a firmware that will work.  

I have also had to install the jumpers for 1.5Gb and put the drives in then remove the drives from the chassis pull the jumper and then after reinstalling the drive without the jumper it will work over and over again.  

0

Featured Post

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.

Question has a verified solution.

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

System overheating may become a serious problem if not taken care of at the proper time. I am writing this article because I faced a similar problem. Intro All electronic devices produce heat, but computers are a special case - the processors bo…
Usually shares are where we want them for our users and we tend to take them for granted. There are times, however, when those shares may disappear causing difficulty for your users. One of the first things to try is searching for files that shou…
This Micro Tutorial will teach you how to censor certain areas of your screen. The example in this video will show a little boy's face being blurred. This will be demonstrated using Adobe Premiere Pro CS6.
With Secure Portal Encryption, the recipient is sent a link to their email address directing them to the email laundry delivery page. From there, the recipient will be required to enter a user name and password to enter the page. Once the recipient …

809 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