Tag Archives: InfiniBand

How to restart InfiniBand Subnet Manager Exadata

Posted on by Standard Reply

You may encounter a scenario where the subnet manager is down on your InfiniBand on your Exadata. To restart is very simple:

[root@v1ex1dbadm01 ~]# ssh v1ex1sw-ibb01
You are now logged in to the root shell.
It is recommended to use ILOM shell instead of root shell.
All usage should be restricted to documented commands and documented
config files.
To view the list of documented commands, use "help" at linux prompt.
[root@v1ex1sw-ibb01 ~]# enablesm
Starting IB Subnet Manager. [ OK ]
Starting partitiond-daemon [ OK ]
[root@v1ex1sw-ibb01 ~]# ps -ef | grep opensm
root 8075 1 0 09:59 ? 00:00:00 /usr/sbin/opensm --daemon
root 8224 7909 0 09:59 pts/0 00:00:00 grep opensm
[root@v1ex1sw-ibb01 ~]#

More information can be found here:
Sun Datacenter InfiniBand Switch 36 – Enable the Subnet Manager

If you found this blog post useful, please like as well as follow me through my various Social Media avenues available on the sidebar and/or subscribe to this oracle blog via WordPress/e-mail.

Thanks

Zed DBA (Zahid Anwar)

How to obtain the serial numbers on an Oracle Exadata Machine

Posted on by Standard Reply

You may be required to obtain serial numbers from an Oracle Exadata Machine, for example to confirm correct hardware for part replacement like disk controller battery (X4-2 and older) or disk, etc.

Below is how to obtain serials for each component.

Exadata Machine

To obtain the serial number of the Exadata Machine itself:

[root@v1ex1dbadm01 ~]# ipmitool sunoem cli "show /SP system_identifier" | grep "system_identifier ="
system_identifier = Exadata Database Machine X5-2 AK00XXXXXX
[root@v1ex1dbadm01 ~]#

Compute Nodes

To obtain the serial number of the compute nodes via dcli:

[root@v1ex1dbadm01 ~]# dcli -g /opt/oracle.SupportTools/onecommand/dbs_group -l root dmidecode -s system-serial-number
v1ex1dbadm01: 1514NMXXXX
v1ex1dbadm02: 1514NMXXXX
[root@v1ex1dbadm01 ~]#

Storage Cells

To obtain the serial number of the storage cells via dcli:

[root@v1ex1dbadm01 ~]# dcli -g /opt/oracle.SupportTools/onecommand/cell_group -l root dmidecode -s system-serial-number
v1ex1celadm01: 1515NMXXXX
v1ex1celadm02: 1515NMXXXX
v1ex1celadm03: 1515NMXXXX
[root@v1ex1dbadm01 ~]#

InfiniBands

To obtain the serial number of the InfiniBands via dcli:

[root@v1ex1dbadm01 ~]# dcli -g /opt/oracle.SupportTools/onecommand/ib_group -l root showfruinfo | grep -a Sun_Serial_Number
v1ex1sw-iba01: Sun_Serial_Number : XXXXXXT+1512RRXXXX
v1ex1sw-iba01: Sun_Serial_Number : AK0029XXXX
v1ex1sw-ibb01: Sun_Serial_Number : XXXXXXT+1512RRXXXX
v1ex1sw-ibb01: Sun_Serial_Number : AK0029XXXX
[root@v1ex1dbadm01 ~]#

 

If you found this blog post useful, please like as well as follow me through my various Social Media avenues available on the sidebar and/or subscribe to this oracle blog via WordPress/e-mail.

Thanks

Zed DBA (Zahid Anwar)