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 and rolling back on OS updates Exadata takes snapshot on identical LVM volume as the…

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 and at the same time update the card firmware. That issue was described in detail…

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 created during deployment which allows access to diagnostics without using a more privileged user. The…

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 saw one day: 4_1 2017-01-04T18:54:05+01:00 warning “Data hard disk entered confinement offline status. The LUN…

Automated sundiag.sh for Exadata nodes

We recently had to collect sundiag.sh output to one of our Service Requests and I followed note “Oracle Exadata Diagnostic Information required for Disk Failures and some other Hardware issues (Doc ID 761868.1)“. And while there isn’t too much of work involved I thought perhaps I could reduce few steps. Below is short script which creates…

Automated exachk

I was speaking in December at UKOUG Tech’16 and attended Andy Colvin‘s session on “5 Quick Tips for Exadata Administrators”. Andy mentioned that it’s possible to automate your exachk which sounds really good idea. We have run it earlier on a semi-frequent schedule but always manually. Wouldn’t it be good to run it for example every…