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Rebuild RAID5 in HP PROLIANT ML370 G5

 
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Rebuild RAID5 in HP PROLIANT ML370 G5

Hi

 

Today we fixed the new 146GB SAS drive to our HP PROLIANT ML 370 G5 server with windows sbs 2003 sp2 .Our RAID5 with 3 disks ( 146 GB each) degraded last week .So we replaced the new drive hotplug in the server and in the hp system mangement homepage it showed 15 % complete  in Percent Rebuild Complete section and stuck there for a long time.

 

When I logout and relogin to the same page , now it is showing in Status section : Ready for rebuild and in  Percent Rebuild Complete section : Not Available

 

Still the logical drive with down arrow yellow mark is visible.

 

How to rebuild now? Shall I restart the server?

 

Please advise

Thanks & Regards

S.Swaminathan
14 REPLIES

Re: Rebuild RAID5 in HP PROLIANT ML370 G5

My issue is almost same like this at http://h30499.www3.hp.com/t5/ProLiant-Servers-ML-DL-SL/Start-Recovery-of-array-with-HP-Smartstart/td-p/5193013

 

 

 

When I opened the HP array configuration utility , I found that code 776 ( Ready for Recovery) Logical drive 1 (273.4 GB, RAID 5 ) is queued for rebuilding

 

Actually when the drive is hot plugged first time it is sensed and the rebuilding upto 15 % went but in the hp systems mangement page when we clicked the Identify drive  it got stuck in 15%  and now I restarted the server and the blue lights are flashing in the RAID ARRAY

 

Please advise me

Thanks & Regards

S.Swaminathan

Re: Rebuild RAID5 in HP PROLIANT ML370 G5

Please help me in this regard ..........Still the status is Ready to rebuild in the home page of HP SYSTEMS MANAGEMENT PAGE

Thanks & Regards

S.Swaminathan

Re: Rebuild RAID5 in HP PROLIANT ML370 G5

Check if there is any firmware upgrade is required  for the controller. If firmwae upgrade is reuired,  even if te rebuidl is complete it will give you false message and shows rebuilding

 

 

Regards

http://hpproliant.blogspot.com/

http://hpproliant.blogspot.com/

Re: Rebuild RAID5 in HP PROLIANT ML370 G5

Hi

 

Thank you for your reply and there is no change in the status of the REBUILD SECTION in the hp systems management homepage, still it is Ready for Rebuild.

 

Unplugged the new drive and reinserted the old one and checked ; status changed to " Rebuilding".Of course the old inserted hdd throws amber led.

 

Inserted the new hdd and started rebuilding the statud is 4% which is atleast reasonable instead of 15% at the first time insertion within 2 minutes which is given some doubt.After few minutes timeout of the homepage, when I reached the same section, the STATUS : Ready of rebuild came back.

 

With same version of the Raid conroller last year when the Raid 5 degraded, the same capacity of hdd inserted and got rebuilt without any problem

 

Actually the Port 1 : Box1 : Bay1 is replaced; but in the homepage it is showing as yellow mark in Port1:Box1:Bay3 which is confusing me

 

Please advise!

Thanks & Regards

S.Swaminathan

Re: Rebuild RAID5 in HP PROLIANT ML370 G5

Hi

 

Upgrading the firmware of the RAID CONTROLLER will rebuild the new hdd?

Thanks & Regards

S.Swaminathan
Dr_Ing_Sosa
Frequent Advisor

Re: Rebuild RAID5 in HP PROLIANT ML370 G5

Upgrading in and of itself will not rebuild the array, but it's possible it addresses an issue that is preventing the RAID from rebuilding (read the release notes). Can you access ACU from SMH? Look at the logs and see if there is anything that stands out.

Re: Rebuild RAID5 in HP PROLIANT ML370 G5

Hi

 

thanks for your reply and if we figure out why the raid is identifying Bay3 as defective which is having no problem , since the bay1 hdd only we changed which showed red colour , almost we can  find the problem where exists and rebuilding is possible I hope ; but can we do the RAID upgrade online now while the server is running which will not affect the server and it's data?

 

Thanks & Regards

S.Swaminathan

Re: Rebuild RAID5 in HP PROLIANT ML370 G5

Hi

 

I am attaching the diagnostic report of the P400 controller

 

Please kindly check and advise me!

Thanks & Regards

S.Swaminathan
Solution

Re: Rebuild RAID5 in HP PROLIANT ML370 G5

 

The ADU report shows that there is a hard drive in predictive failure state and that hard drive is installed in Physical Drive 1I:1:3.  This explains the yellow mark against Port1:Box1:Bay3.

 

There are read errors on this hard drive and hence, this has been flagged to be replaced. On further reviewing the report no more read or write errors were found.

 

Please contact HP to get this hard drive replaced.

 

Regards,

 

Vijayasarathy

I work for HPE
Views expressed herein are my personal opinion and is not the views of HPE
To say thanks click the white "thumbs up" icon below!!!

Re: Rebuild RAID5 in HP PROLIANT ML370 G5

Hi Vijayasarathy!

 

I have mentioned in the 5th portion of this post that we have replaced the defective hdd in bay 1 but  it is reporting as in quotes below

 

 

 

 

"With same version of the Raid controller last year when the Raid 5 degraded, the same capacity of hdd inserted and got rebuilt without any problem

 

Actually the Port 1 : Box1 : Bay1 is replaced; but in the homepage it is showing as yellow mark in Port1:Box1:Bay3 which is confusing me"

 

Please advise!

 

 

 

So if we figure out why it is reporting the bay 3 as defective , then the problem can be found out

Thanks & Regards

S.Swaminathan

Re: Rebuild RAID5 in HP PROLIANT ML370 G5

 

 

There is nothing incorrect in the reporting that hard drive in Port1:Box1:Bay3 needs replacement. The attached ADU report shows that the hard drive is in predictive failure state. Hence it needs to be replaced. The problem is that there are many hard read errors and this cannot be corrected. It appears that drive in bay 1 could have been defective and was replaced. Subsequently the System Management Homepage has detected the issue with hard drive in bay 3 and indicated so.

 

As said above, the hard drive in bay 3 is in predictive failure state, indicating that it could fail anytime. RAID level configured is RAID 5, which allows only for a single drive failure. In this scenario, if the data cannot be properly reconstructed from the remaining disks, because of hard read errors on drive in bay 3, then it may be possible that the array is not able to rebuild and is stuck in that state trying to do so. If the array does not rebuild after a reasonable time, and if a valid backup is available, then please replace the hard drive in bay 3 and restore data to get the server back online.

 

Regards,

 

Vijayasarathy

I work for HPE
Views expressed herein are my personal opinion and is not the views of HPE
To say thanks click the white "thumbs up" icon below!!!

Re: Rebuild RAID5 in HP PROLIANT ML370 G5

Hi Vijayasarathy

 

Sorry I am held up in some other issues.

 

Thank you very much for your clear and precise explanation.Now I understood the existing problem and today I have intiated the full backup and after finish of that backup, shall I do the firmware update of the RAID controller and check ?

 

 

Thanks & Regards

S.Swaminathan

Re: Rebuild RAID5 in HP PROLIANT ML370 G5

Hi

 

Thank you for all your support and finally the server has been rebuilt from the scratch and restored the full backup

Thanks & Regards

S.Swaminathan

Re: Rebuild RAID5 in HP PROLIANT ML370 G5

Hi

 

I came back again after 2 months but this time  different issue with the same server.

 

Since just today I restarted the server , I found that when it is restarting it takes little bit of time " The active directory is rebuilding indices...."

 

How to solve this issue because I found that this is due to the problem at

 

http://www.neomagick.net/zen/2008/01/24/active-directory-is-rebuilding-indices-dont-panic-it-may-be-easier-than-it-sounds/comment-page-1/#comment-21828

 

Actually this server is brought into production from the full backup taken earlier under the degraded condition

 

 

Thanks & Regards

S.Swaminathan