Resize backup LVM on Exadata
We were patching Exadata and one of the YUM pre-checks failed due to invalid LVM size. We hadn’t done any resizing lately so I think issue had been there already but for whatever reason it wasn’t noticed. For backing up…
Category Oracle
Optimizing performance for Oracle VM when using iSCSI storage
We implemented Oracle VM 3.3.2 around two years ago and biggest issue we had was using iSCSI storage having sub-optimal latency and throughput with parallel sessions and high load in our performance tests. In the end this was resolved by linux disk partition…
Exadata failing RAID HBA card
This is more of informative story what happened to us recently. In the past we had issue with one of the Exadata cell node where the RAID HBA card has failed. After working with support they decided to replace the card…
Oracle OVS, Broadcom Netextreme II and 10G network
We recently upgraded our LAN network from 1G to 10G but the Oracle OVS servers network cards showed only 1G link even though the advertised link was 10G. [root@ovs1 ~]# ethtool em1 Settings for em1: Supported ports: [ FIBRE ]…
Upgrading Oracle VM 3.3.3 to 3.4.2
Now when we have used demo 3.4.2 for some time without issues I decided to upgrade our sandbox Oracle VM setup from 3.3.3 to 3.4.2 to get experience for the actual production upgrade coming later. We have two installations of…
CELLDIAG user for Exadata
I was doing some tasks off from my task list and one of the things exachk highlighted was that we should create user CELLDIAG on cells. Beginning with Exadata Storage Server Software version 12.1.2.2.0, the storage server user “CELLDIAG” is…
Exadata & metric_iorm.pl
Our case where to gather information was actually related to two disks going OFFLINE at the same time. As I wasn’t sure if this is normal Exadata behavior I went and created Service Request for this. This is what we…
Exadata, Oracle eBS and exachk
Nice feature which I wasn’t aware earlier is that when you run exachk for your Exadata it has eBS specific section as well. So not all content is related to Exadata or databases. There are million posts about exachk so I…
Impressions on Oracle Enterprise Manager 13.2 & Oracle VM Infrastructure Home
I’ve played around with OEM 13.2 Oracle VM Infrastructure Home few days and I think it definitely has potential to be standard tool for us instead of OVM Manager! There are still some areas which could be improved and leave…
Start using Oracle VM 3.4.2 through Oracle Enteprise Manager 13.2
One of my main interests after setting up Oracle VM 3.4.2 and Oracle Enterprise Manager 13.2 was to test how OEM 13.2 looks when you use Oracle VM through it. With OEM 12c we tested it but it seemed always…