[Linux-PowerEdge] Degradated array configuration

Supporto Tecnico - Crazy Network support at crazynetwork.it
Wed Sep 18 14:16:54 CDT 2013

I dont know actually if can be created a degraded array, but at least 
you can not use the disk untill you got the 4th and create the array 
once you have that without need to reboot the system.

Also, you may consider a RAID5 that use 3 disk and give you the ability 
via OMSA or iDRAC to add a 4th disk when you have it.

But, if you need 2xRAID1 so i can just say you can create the new array 
once you had 4th disk, not sure about create a degraded one.

You may read the documentation, or someone else here with more knoledge 
may reply.


Il 18/09/2013 17:59, Mauro Antivero ha scritto:
> El 18/09/13 18:18, Supporto Tecnico - Crazy Network escribió:
>> Dont you have a iDRAC or OMSA on your system?
> This R410 has iDRAC, but yet I don't know how to use it. The R310 has 
> OMSA installed but yet I don't use it.
> Thanks for the data! I will read about it.
> But one more question:
> In the Bios config utility manual says that when a new volume is 
> created the data in all disk of thta volume will be loss! So I can't 
> create a new volume if the disk has some important data.
> This surprises me because in Linux you can configure a degradated 
> array and later add another disk to that RAID. Do you sat that the 
> same funcionallity can be obtained with OMSA and iDRAC?
> Thanks a lot and regards.
> Mauro.
>> With one of those systems you will be able to manage (so create too) new
>> Virtual Disks.
>> Regards
>> Il 18/09/2013 17:09, Mauro Antivero ha scritto:
>>> I'm currently learning how to use the BIOS config utility to manage the
>>> PERC H200 RAID controller on a Dell PowerEdge R310.
>>> Actyally the server has 3 disks:
>>> Slot 1    1 TB Disk
>>> Slot 2    1 TB Disk
>>> Slot 3    2 TB Disk
>>> I already configured disks in slot 1 and 2 as RAID 1. Now I want to
>>> configure the disk in slot 3 as RAID 1 too, but degradeted, because I
>>> don't have yet another disk to put in slot 4. The problem is that the
>>> BIOS utility doesn't allow me to configure RAID 1 using the disk in slot
>>> 3 because I need another disk in slot 4.
>>> I want to do this because when I will have the system fully configured
>>> and running and then insert another disk in hot the RAID will rearm
>>> automatically.
>>> If I can't do this, when I insert a new disk in slot 4 I will need to
>>> reboot the system, enter the BIOS config utility and then configure the
>>> RAID 1, selecting disk in slot 3 as master.
>>> So, is posible to configure a degradated RAID 1 in the BIOS config utility?
>>> Thanks and best regards.
>>> Mauro.
>>> _______________________________________________
>>> Linux-PowerEdge mailing list
>>> Linux-PowerEdge at dell.com
>>> https://lists.us.dell.com/mailman/listinfo/linux-poweredge
> _______________________________________________
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Andrea Iannucci

Crazy Network di Iannucci Andrea
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