[LUNI] oh oh, my raid it having problems

[Craig Van Tassle]

Heh Thanks.

Check your BIOS and see if it's seen in your bios. Then Check your dmesg.

If it is your IDE chain you could get a PCI card to take over for the IDE controler.

I recomend http://www.newegg.com/Product/Product.aspx?Item=N82E16816102027
I have been using that card in my server for several years.

Also do you have any messages in your syslog about the drive going?
Also have you tried moving the drive to the other IDE chain on your mother board, or tried changing the cable?

Craig

Jay Strauss wrote:
> (top posting for your enjoyment :)
> 
> I now believe it is not my disk, but instead my IDE controller.  I
> plugged a new drive in and the machine still does not see /dev/hdb, as
> in:
> 
> login as: root
> Using keyboard-interactive authentication.
> Password:
> iron:~# fdisk /dev/hdb
> 
> Unable to open /dev/hdb
> iron:~#
> 
> Unless I'm wrong, which is a greater possibility than my being right,
> I guess I'll have to buy a new machine.
> 
> thanks
> Jay
> 
> On 8/2/07, Craig Van Tassle <craig at codestorm.org> wrote:
>> Ugg bottom posters..
>>
>> No it looks like hda is the drive that is working.
>>
>>> md0 : active raid1 hda1[0]
>> Notice it does not say anything about hdb.
>>>       1951744 blocks [2/1] [U_]
>> Also notice it says 2/1 That means 2 drives configured and one drive failed. the U_ means that the first drive of the
>> array is good (Up), and the second one failed.
>>
>> As for copying the partision table once you get the new drive installed dd if=/dev/hda of=/dev/hdb bs=512 count=1024.
>>
>> That will copy your MBR and your partision table. If you dont have hot-swap drives you have to power down the box.
>> To read the partision table use fdisk. Man fdisk will help out there.
>>
>> Remember IDE is NOT hot-swap! If you don't know if you have hotswap drives then you don't.
>>
>> To check for RMA you need to look at the drive. Go to the makers website and look up warranty status.
>> RMA == Return Material Authorization.
>>
>> The SMART checks and badblocks can be done on the current system.
>>
>> Man smartctl and man badblocks. That will give ya all the info you need.
>>
>>
>> Jay Strauss wrote:
>>> Hi Craig, thanks for advice.  Here is the output:
>>>
>>> iron:~# cat /proc/mdstat
>>> Personalities : [raid1]
>>> md0 : active raid1 hda1[0]
>>>       1951744 blocks [2/1] [U_]
>>>
>>> md1 : active raid1 hda2[0]
>>>       115266304 blocks [2/1] [U_]
>>>
>>> unused devices: <none>
>>>
>>> I'm guessing it's hda1 that is the problem.  I don't know how to print
>>> the partition table.  I have 2 disks which I broke into 2 partitions.
>>> On top of those I built two raid 1 devices.  On one of the devices
>>> (the big one) I built an LVM.
>>>
>>> So how do I print the partition table?
>>>
>>> Do I power down the box, remove the drive, replace with new, power
>>> back on and try to sync OR do I do it all while the box is running?
>>>
>>> What is RMA how do I check it?  Do I stick the failed drive in a
>>> different computer?
>>>
>>> Thanks
>>> Jay
>> --
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