Breaking the SAS IR on integrity server

[Akram Shaik]

Dear,

How do I break the Internal raid of SAS disks on a Integrity server .

I need them as two individual disks


Thanks and regards,
Akram

[Matti_Kurkela]

Boot from the Offline Diagnostic Environment (ODE) CD that was supplied with the server. Go to EFI shell, and find the cfggen.efi tool from the ODE CD.

Run "cfggen list" to see the controller number(s) of the internal SAS controller(s).
Typically the first (or only) controller will be number 0.

Example: to delete the internal RAID configuration from controller 0, run:

cfggen 0 delete

MK

[Tim Nelson]

boot to EFI shell and use drvcfg to manage SAS controller.

something like drvcfg â s 22 25

depending on your configuration.

[Tim Nelson]

Another option.

From HPUX
sasmgr get_info -D /dev/sasd0

man sasmgr for more details.

[George Genov]

Hi,

You can go in EFI shell and start drvcfg -s adn it should start SAS cfg utility and from there you can delete the IR volume.

But doing that you will destroy all your data.

BR

George

[kris rombauts · Accepted solution]

Akram,

the complete and correct order to make sure the drvcfg command is given the right driver instance id is run these commands:

- from EFI shell run the 'drivers' command
This is to find the controller id of the
LSI SAS controller. It will look simmilar
to this output (depends on server and
config) The number next to the LSI SAS
controller (in this case 22) is what you
need to look after.

Shell> drivers
T D
D Y C I
R P F A
V VERSION E G G #D #C DRIVER NAME IMAGE NAME
== ======== = = = == == =================================== ===================
16 00000020 B - - 6 18 PCI Bus Driver PciBus
22 02010400 B X X 1 2 LSI Logic Fusion MPT SAS Driver PciROM:02:01:00:001


- run drvcfg 'xx' -s
'xx' is the number you found in the first
step. The utility will start then.


As mentioned before, this will destroy your data, there is no method on this controller to split a mirror disk and go back to one single disk while keeping the data.


HTH, Kris

[Akram Shaik]

Hi Kris,Tim..

Apologies for late reponse
Thanks for the information.. destroying the data in the disks is not a problem as I am already booting the server form SAN storage. So safe on that aspect

The breaking of the IR volumes is scheduled next week.. I will let know once done succesfully..


thanks for the inputs..

TC..

regards,
Akram

[Torsten.]

You should be able to remove the RAID online if no longer in use via the sasmgr utility, see

http://docs.hp.com/en/J6369-90070/index.html