Hardware Thread, Domain Controller dead :( in Technical; Had some big problems with my DC this week . . .
1st off one of the hard drives in ...
30th April 2009, 02:06 PM #1
Domain Controller dead :(
Had some big problems with my DC this week . . .
1st off one of the hard drives in the RAID failed. Not too bad as the server is still under warranty so I call an engineer out to get the new hard drive in. He brings out 2 new HD's and replaces them both. He ghosts the working origional working HD to one of the new HD's and sets up the RAID but it wont boot.
He tries a few other things but still no joy. Then today he ghosts the old working drive to both the new hard drives and pops them in and we think thats solved the problem as the server now boots and the RAID manager at startup reports no faults and that both drives are responding.
On the server there is a MEGAraid IDESPY program that is a simple app that reports the status of the raid. red for fubar, yellow for an error and green for ok. we expected this to be yellow and say rebuilding but it doesnt. It thinks that there is an error with the RAID array. Possibly a false positive the engineer leaves as the DC seems to be working ok. Then about an hour later it BSOD's. I wasnt working on it but one of the admin staff were runing CMIS.
It reboots and i get it back online and the same thing happens about 40 minutes later, this time with no one using CMIS. it seems to be complaining about intelsmb.sys.
So the server has now got to go back to Tempus so that they can investigate further. If it wasnt under warrenty then i'd do it myself. . . . .
Moved DHCP across to another server but now login seems really slow, anyone have any ideas?
the dead DC had the folowing roles
AD (replicated with other DC)
DNS (replicated with other DC)
DHCP (moved to other DC)
just isnt my week, have ofsted coming next Tuesday too !!!
EDIT: just a note, i havn't moved the DHCP records just created a new scope with the same range on the working DC
Last edited by jamin100; 30th April 2009 at 02:27 PM.
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30th April 2009, 02:42 PM #2
comptuers will still be using ip leases for another 8 days or so, get them to release and renew so they can get all the loverly new info.
30th April 2009, 02:55 PM #3
What??? Why on earth did he destroy the existing raid array by replacing both hard drives at the same time? He should have just replaced the faulty drive and then gone into the raid bios and set it to rebuild.
brings out 2 new HD's and replaces them both. He ghosts the working origional working HD to one of the new HD's and sets up the RAID but it wont boot.
30th April 2009, 03:02 PM #4
No idea . . he said that there was a fault with the drives as they have seen this happen before and are now changing drive models.
Originally Posted by Butuz
we did have 2 x 200gb drives now we have 2 x 250gb drives.
There WD drives and the RAID controller is on the actual hard drive and not the MB or a dedicated card
30th April 2009, 03:11 PM #5
One of the drives in the raid array and he replaced two?
what type of raid is it?
Which of the fsmo roles did the server that's not working have on it?
How to view and transfer FSMO roles in Windows Server 2003
30th April 2009, 03:29 PM #6
- Rep Power
Well, from reading this it looks like the set up either a software or an cheap desktop computer class raid setup on a pair of IDE drives. I wouldn't even recomend running something like that for a home user. They brought out two 250s because the 200s probably weren't available anymore and it was all they could get.
My first recomendation would be to buy a real server with a hardware raid controller running either scsi or sas drives. I just bought a pair of off lease HP ML370 G3s for two side customers. They were around $500 US and had 6 72.8 gig Ultra 320s, redundant colling, and redundant power supplies. If a drive fails you should replace it with a matching drive, most real servers even prefer you to hot swap them (don't try that with your box though). As for your DC, that box is probably dead. Microsoft has a step by step document for moving all the DC roles to another server.
How to replace single domain controller in domain with a single domain controller? As for DHCP, I moved all my dhcp to my switches and took it away from MSFT. I had problems with clients moving between VLANs and getting assigned the address for the vlan they moved from and not the vlan they were on. But you will probably need to do an ipconfig /release and ipconfig /renew to get them to pick up the new DHCP server.
30th April 2009, 04:11 PM #7
sorry, only a quick post
these are the drives they have put in...
WD RE3 250 GB SATA Hard Drives ( WD2502ABYS )
Have ipconfig /flush /registered dns and set the prefered DNS server in clients IP properties to the working DC
Seems to have made a difference
30th April 2009, 04:13 PM #8
Mate are you a primary or secondary?
30th April 2009, 04:27 PM #9
Originally Posted by Butuz
30th April 2009, 04:30 PM #10
set them in the dhcp scope, much easier.
Originally Posted by jamin100
30th April 2009, 04:33 PM #11
Have done that too
Originally Posted by strawberry
30th April 2009, 09:56 PM #12
You say you have Sophos EM installed.
What clean up settings do you have set in the server or default policies?
Move to Folder
Move to Central Location?
Please let us know..
1st May 2009, 08:40 AM #13
Originally Posted by m25man
scan on write for workstations
scan on read for servers
1st May 2009, 08:59 AM #14
Why do you not have HDD's for servers in your server?!?
Originally Posted by jamin100
have you thought of looking into virtualising - those services on the old server would be best off split appart a little (give CMIS it's own server - sort of thing you don't want to die!)
1st May 2009, 10:06 AM #15
Money is the main factor in all this,
Originally Posted by DAckroyd
I put 3 proposals to the head and advised him that we needed to go down the visualization route..
He chose the cheapest option though
At least now we have a new head
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