Garbled display while running FMW installer on Linux

A colleague faced this while running FMW installer on a Linux machine. The display appeared like this








This thread gave a clue that it could have something to do with fonts. So I checked what all fonts related stuff was installed.

[root@someserver ~]# rpm -aq |grep -i font
xorg-x11-fonts-ISO8859-9-100dpi-7.5-9.el7. (more...) fails with CRS-2101:The OLR was formatted using version 3

Got this while trying to install RAC on Redhat Linux 7.2. fails with a message like

ohasd failed to start
Failed to start the Clusterware. Last 20 lines of the alert log follow:
2017-11-09 15:43:37.883:
[client(37246)]CRS-2101:The OLR was formatted using version 3.

This is bug 18370031. Need to apply the patch before running

Presenting at Cloud day event of North India Chapter of AIOUG

I will be presenting a session titled “An 18 pointers guide to setting up an Exadata machine” at Cloud Day being organized by North India chapter of AIOUG. Vivek Sharma is doing multiple sessions on various cloud and performance related topics. You can register for the event here 


ksplice kernel updates and Exadata patching

If you have installed some one off ksplice fix for kernel on Exadata, remember to uninstall it before you do a kernel upgrade  eg regular Exadata patching. As such fixes are kernel version specific so they may not work with the newer version of the kernel. 

ORA-15040 ORA-15042 with EXTERNAL redundancy Diskgroup

A colleague was working on an ASM issue (Standalone one, Version on AIX) at one of the customer sites. Later on, I also joined him. The issue was that the customer added few news disks to an existing diskgroup. Everything went well and the rebalance kicked in. After some time, something happened and all of a sudden the diskgroup was dismounted. While trying the mount the diskgroup again, it was giving

ORA-15032:  (more...)

TNS-12543: TNS:destination host unreachable

Scenario : Setting up a physical standby from Exadata to a non-Exadata single instance. tnsping from standby to primary works fine but tnsping from primary to standby fails with:

TNS-12543: TNS:destination host unreachable

I am able to ssh standby from primary, can ping as well but tnsping doesn’t work.  From the error description we can figure out that something is blocking the access. In this case it was iptables that was enabled on the standby (more...)

ORA-12154 in Data Guard environment

Hit this silly issue in one of the data guard environments today. Primary is a 2 node RAC running and standby is also a 2 node RAC. Archive logs from node2 aren’t shipping and the error being reported is

ORA-12154: TNS:could not resolve the connect identifier specified

We tried usual things like going to $TNS_ADMIN, checking the entry in tnsnames.ora and then also trying to connect using sqlplus sys@target as sysdba. (more...)

Failed to create voting files on disk group RECOC1

Long story short, faced this issue while running OneCommand for one Exadata system. The step (Initialize Cluster Software) was failing with the following error on the screen

Checking file on node
Error: Error running root scripts, please investigate…
Collecting diagnostics…
Errors occurred. Send /u01/onecommand/linux-x64/WorkDir/ to Oracle to receive assistance.

Doesn’t make much sense. So let us check the log file of this step

2017-04-27 (more...)

OneCommand Step 1 error

Hit this silly issue while doing an Exadata deployment for a customer. Step 1 was giving the following error:

ERROR: configured on as dm01dbadm02 does not match expected value

I wasn’t able to make sense of it for quite some time until a colleague pointed out that the reverse lookup entries should be done for FQDN only. As it is clear in the above message (more...)

Oracle RAC 12.1 – lsnodes exited with code 9

I was trying to do a 2 node RAC setup on Solaris 11.3 where Oracle Solaris Cluster 4.3 was already configured. Installed was running but the Cluster Node Information screen was appearing like this


The install log shows this:

INFO: Checking cluster configuration details

INFO: Found Vendor Clusterware. Fetching Cluster Configuration

INFO: Executing [/tmp/OraInstall2017-03-28_12-50-48PM/ext/bin/lsnodes]

with environment variables {TERM=xterm, LC_COLLATE=, SHLVL=3, JAVA_HOME=, XFILESEARCHPATH=/usr/dt/app-defaults/%L/Dt, SSH_CLIENT= 56370 22, LC_NUMERIC=, LC_MESSAGES=, MAIL=/var/mail/oracle, PWD=/export/software/grid/grid, XTERM_VERSION=XTerm(320), (more...)