X5-2-HA
Warning: ODA HA disk enclosure is not smart!
Introduction Apart from the number of servers (1 vs 2), the main difference between Oracle Database Appliance lite (S/L) and High-Availability (HA) is the data disks location. They are inside the server on lite ODAs, and in a dedicated disk enclosure on HA ODAs. Obviously, this is because when 2 nodes want to use the same disks, these disks have…
Oracle Database Appliance 19.13: what’s new and how to patch?
Introduction Patch 19.13 is now available on ODA. It’s time to test it. What’s new? This version brings October’s PSU to database and grid homes with their bug fixes, as usual. It also brings 21.4 for DB Systems (21c being an innovation release, understand just for testing). Something new that some of us have been waiting for a while, a…
Oracle Database Appliance: what have you missed since X3/X4/X5?
Introduction ODA started to become popular with X3-2 and X4-2 in 2013/2014. These 2 ODAs were very similar. The X5-2 from 2015 was different with 3.5 inches disks instead of 2.5 inches and additional SSDs for small databases (FLASH diskgroup). All these 3 ODAs were running 11gR2 and 12cR1 databases and were managed by the oakcli binary. If you’re still…
odacli create-database -io doesn’t work for older databases in 19.9
Introduction On ODA, you create your databases with odacli create-database. You can create a complete database, and it takes about 10 minutes, and you can also create an instance-only database. It will simply and quickly create a record in the ODA registry, start the instance with a basic pfile, and that’s it. Then you’re supposed to do the next step:…
Configure Data Guard with odacli on ODA
Introduction I always thought integration of Data Guard was a missing feature on Oracle Database Appliance. For sure, you can configure Data Guard manually as you do on a classic server, but as an appliance, ODA should have proposed an easier way for configuring that. After years of waiting for this feature, it’s now available, and I just tested it.…
Disk usage on ODA – Free MB and usable MB
Introduction Oracle Database Appliances rely on ASM to manage disk redundancy. And ASM is brilliant. Compared to RAID, redundancy is managed at the block level. For NORMAL redundancy, which is similar to RAID1, you need at least 2 disks, but it can also work with 3 disks, 4 disks, 5 disks and so on. There is no need for parity…