Reason for the lock failure:
Because of the sudden ungraceful shutdown of the database, file locks on data files were not released by the NFS server (ZFS SA in this case). NFS server held on to the file locks even after the NFS client (DB server node in this example) was restarted. Due to this, Oracle RDBMS is not able to lock those data files residing on NFS server (ZFS SA). As a result, database instance was failed to start up in exclusive mode.
Workaround
Manually clear the NFS locks Read more...
solaris
All posts tagged solaris
If you try to stop a zone but it remains in shutting_down state, any further action will fail (i.e. detach)
root@solaris1:/root # zoneadm -z solariszone detach
zoneadm: zone 'solariszones': detach operation is invalid for shutting_down zones.
First important information is:
We should never kill the zsched process!!.
we have to check on the zone related zombi processes that are blocking our attempt to stop the zone (-z)
root@solaris1:/root # ps -fz solariszone
UID PID PPID C Read more...
To solve all the fmadm errors in a row, run:
# for i in ` fmadm faulty |grep Affect| awk {'print $3'}`; do echo $i; fmadm repaired $i; done
In order to convert the Solaris ssd naming from sd# to c#t#d#, very useful as in the log files will be showed only the sd# naming, we can use the next simple set of commands to convert them.
# paste -d= <(iostat -x | awk 'NR>2{print $1}') <(iostat -nx | awk 'NR>2{print "/dev/dsk/"$11}')
this the output for some disks:
sd0=/dev/dsk/c0t5000CCA0164B7CDCd0
sd1=/dev/dsk/c0t5000CCA0164BD734d0
sd4=/dev/dsk/c1t0d0
ssd0=/dev/dsk/c4t5000097500015190d6
ssd1=/dev/dsk/c4t5000097500015190d5
If Read more...
Configuring Jumbo Frames enables the Ethernet interfaces to send and receive packets larger than the standard 1500 bytes. However, the actual transfer size depends on the switch capability and the device driver capability.
Note - Refer to the documentation that came with your switch for exact commands to configure Jumbo Frames support.
Enabling Jumbo Frames in a Solaris Environment
Now we will check how to enable Jumbo Frames in both a SPARC and an x86 environment.
To Enable Jumbo Frames Read more...