Upgrading from native MPIO to SDDPCM AIX 6.1


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# 1  
Old 04-11-2011
Upgrading from native MPIO to SDDPCM AIX 6.1

We have AIX 6.1 system attached to SAN disks (DS4700 and DS8100) thru SVC.

Initially when the system was I forgot to install sddpcm drivers. and wanted to know how can i go with the installation of the sddpcm drivers.

My understandin going thru the manual
http://publib.boulder.ibm.com/infoce...c/f2bsdu03.pdf

is

1. Unmount all the FS related to the VG.
2. varyoff VG
3. Export VG
4. rmdev -Rdl hdiskxx
5. install sddpcm drivers
6. import vg

Does this look correct.

$ lsdev -Cc disk
hdisk0 Available 00-08-00 SAS Disk Drive
hdisk1 Available 00-08-00 SAS Disk Drive
hdisk2 Available 05-00-02 MPIO IBM 2145 FC Disk
hdisk3 Available 05-00-02 MPIO IBM 2145 FC Disk
hdisk4 Available 05-00-02 MPIO IBM 2145 FC Disk
hdisk5 Available 05-00-02 MPIO IBM 2145 FC Disk
hdisk6 Available 05-00-02 MPIO IBM 2145 FC Disk
hdisk7 Available 05-00-02 MPIO IBM 2145 FC Disk
hdisk8 Available 05-00-02 MPIO IBM 2145 FC Disk
hdisk9 Available 05-00-02 MPIO IBM 2145 FC Disk
hdisk10 Available 05-00-02 MPIO IBM 2145 FC Disk
hdisk11 Available 05-00-02 MPIO IBM 2145 FC Disk
hdisk12 Available 05-00-02 MPIO IBM 2145 FC Disk
hdisk13 Available 05-00-02 MPIO IBM 2145 FC Disk


$ lslpp -l | grep devices.fcp.*
devices.fcp.disk.array.diag
devices.fcp.disk.array.rte
devices.fcp.disk.rte 6.1.4.6 COMMITTED FC SCSI CD-ROM, Disk,
devices.fcp.tape.rte 6.1.4.2 COMMITTED FC SCSI Tape Device Software
devices.fcp.disk.array.rte
devices.fcp.disk.rte 6.1.4.6 COMMITTED FC SCSI CD-ROM, Disk,
devices.fcp.tape.rte 6.1.4.2 COMMITTED FC SCSI Tape Device Software


I did look at the sddpcm manual
http://publib.boulder.ibm.com/infoce...c/f2bsdu03.pdf
and I think this is what I need to kn
# 3  
Old 04-12-2011
These commands are not available, since sdd drivers are not installed. These commands are only available if sdd or sddpcm drivers are installed.
# 4  
Old 04-14-2011
I went through this a while ago, if I remember correctly you can just install sddpcm and then reboot. The above commands you have posted are if you are upgrading sddpcm to another OS release - if you have a test lpar you could try it?

If not it won't hurt to do the above method, this is what I have done recently after upgrading from AIX 6.1 to 7.1 - I didn't do step 6 though, it's just easier to reboot Smilie

Don't forget to install the host attachment fileset for your relevent storage as well, the disks will look like this after (this is DS8000)

hdisk2 Available 09-08-02 IBM MPIO FC 2107
hdisk3 Available 09-08-02 IBM MPIO FC 2107
hdisk4 Available 09-08-02 IBM MPIO FC 2107
hdisk5 Available 09-08-02 IBM MPIO FC 2107
hdisk6 Available 09-08-02 IBM MPIO FC 2107
hdisk7 Available 09-08-02 IBM MPIO FC 2107

When all done you should be able to run the pcmpath query adapter command
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