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Clustering with MSA30 MI

Eudo Jimenez_2
Frequent Advisor

Clustering with MSA30 MI

Please, everyone

We need to configure two node cluster with serviceguard.

We have:
HP-UX 11.i v2
2 rx4640 servers with 2 A7173A Ultra320 SCSI dual port.

For this case I identicated like
NODE-A NODE-B
U320-A-PORT-1 U320-A-PORT-1
U320-A-PORT-2 U320-A-PORT-2
U320-B-PORT-1 U320-B-PORT-1
U320-B-PORT-2 U320-B-PORT-2

1 MSA30 MI Dual bus SCSI storage
PORTS: A1, A2, B1 and B2
6 72Gb disk (3/Bus)

Connected:
From NODE-A
U320-A-PORT-1 to A1
U320-B-PORT-1 to B1

From NODE-B
U320-A-PORT-1 to A2
U320-B-PORT-1 to B2

ioscan -fnkd mpt output from NODE-A
Class I H/W Path Driver S/W State H/W Type Description
=================================================================
ext_bus 3 0/2/1/0 mpt CLAIMED INTERFACE SCSI Ultra320 A6961-60011
/dev/mpt3
ext_bus 4 0/2/1/1 mpt CLAIMED INTERFACE SCSI Ultra320 A6961-60011
/dev/mpt4
ext_bus 6 0/5/1/0 mpt CLAIMED INTERFACE SCSI Ultra320 A6961-60011
/dev/mpt6
ext_bus 7 0/5/1/1 mpt CLAIMED INTERFACE SCSI Ultra320 A6961-60011
/dev/mpt7


ioscan -fnkd mpt output from NODE-B
Class I H/W Path Driver S/W State H/W Type Description
=================================================================
ext_bus 3 0/2/1/0 mpt CLAIMED INTERFACE SCSI Ultra320 A6961-60011
/dev/mpt3
ext_bus 4 0/2/1/1 mpt CLAIMED INTERFACE SCSI Ultra320 A6961-60011
/dev/mpt4
ext_bus 6 0/5/1/0 mpt CLAIMED INTERFACE SCSI Ultra320 A6961-60011
/dev/mpt6
ext_bus 7 0/5/1/1 mpt CLAIMED INTERFACE SCSI Ultra320 A6961-60011
/dev/mpt7


but only NODE-A show the disks.
ioscan -funCdisk output from NODE-A

Class I H/W Path Driver S/W State H/W Type Description
============================================================================
disk 0 0/0/3/0.0.0.0 sdisk CLAIMED DEVICE TEAC
DV-28E-N
/dev/dsk/c0t0d0 /dev/rdsk/c0t0d0
disk 1 0/1/1/0/4/0.0.0 sdisk CLAIMED DEVICE HP
LOGICAL VOLUME
/dev/dsk/c2t0d0 /dev/rdsk/c2t0d0
/dev/dsk/c2t0d0s1 /dev/rdsk/c2t0d0s1
/dev/dsk/c2t0d0s2 /dev/rdsk/c2t0d0s2
/dev/dsk/c2t0d0s3 /dev/rdsk/c2t0d0s3
disk 10 0/2/1/0.4.0 sdisk CLAIMED DEVICE COMPAQ BF0728A4BA
/dev/dsk/c4t4d0 /dev/rdsk/c4t4d0
disk 11 0/2/1/0.5.0 sdisk CLAIMED DEVICE COMPAQ BF0728A4BA
/dev/dsk/c4t5d0 /dev/rdsk/c4t5d0
disk 12 0/2/1/0.8.0 sdisk CLAIMED DEVICE COMPAQ BF0728A4BA
/dev/dsk/c4t8d0 /dev/rdsk/c4t8d0
disk 5 0/5/1/1.0.0 sdisk CLAIMED DEVICE COMPAQ BF0728A4BA
/dev/dsk/c7t0d0 /dev/rdsk/c7t0d0
disk 6 0/5/1/1.1.0 sdisk CLAIMED DEVICE COMPAQ BF0728A4BA
/dev/dsk/c7t1d0 /dev/rdsk/c7t1d0
disk 7 0/5/1/1.2.0 sdisk CLAIMED DEVICE COMPAQ BF0728A4BA
/dev/dsk/c7t2d0 /dev/rdsk/c7t2d0


ioscan -funCdisk output from NODE-B

Class I H/W Path Driver S/W State H/W Type Description
============================================================================
disk 0 0/0/3/0.0.0.0 sdisk CLAIMED DEVICE TEAC
DV-28E-N
/dev/dsk/c0t0d0 /dev/rdsk/c0t0d0
disk 1 0/1/1/0/4/0.0.0 sdisk CLAIMED DEVICE HP
LOGICAL VOLUME
/dev/dsk/c2t0d0 /dev/rdsk/c2t0d0
/dev/dsk/c2t0d0s1 /dev/rdsk/c2t0d0s1
/dev/dsk/c2t0d0s2 /dev/rdsk/c2t0d0s2
/dev/dsk/c2t0d0s3 /dev/rdsk/c2t0d0s3

When shutdown NODE-A and startup NODE-B, NODE-B show the disk.

Can anyone help us.
2 REPLIES
Torsten.
Acclaimed Contributor

Re: Clustering with MSA30 MI

Hi,

did you configure the SCSI ID of the HBAs in one server from 7 to 6?

You must do this, otherwise you have 2 controllers with ID 7 on the same bus (SCSI address conflict).

see man mptutil

Hope this helps!
Regards
Torsten.

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Torsten.
Acclaimed Contributor

Re: Clustering with MSA30 MI

>> When shutdown NODE-A and startup NODE-B, NODE-B show the disk <<

Now I'm sure both servers have SCSI ID 7 ;-)

see also

http://docs.hp.com/en/J6373-90023/ch03s08.html

Hope this helps!
Regards
Torsten.

__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.

__________________________________________________
No support by private messages. Please ask the forum!

If you feel this was helpful please click the KUDOS! thumb below!