Exadata: Flash Cache Compression on X3 and X4 Storage Servers causing disk drive failures

Check what version of software you have on your Storage Servers immediately due to the bug listed in "(EX28) High risk of data loss on X3 or X4 Exadata storage when flash compression is enabled and running late 2015 or early 2016 software release" MOS article ID 2115005.1 which currently has NO solution!  There is a workaround listed, but that is turning off the Flash Cache Compression which will likely negatively affect the performance of your Exadata application and Oracle gives some great advice about proceeding with caution if you are planning upgrading!

Weekend Learning: Flash Cache Compression for Exadata

Everybody is curious about the new kid on the block, and the MOS note "EXADATA Flash Cache Compression - FAQ" from document ID 1664257.1 goes in depth on how to create and disable a Flash Cache on a X3-2 or X4-2 Exadata platform.  Take a look at this FAQ and see if it will give you some new information you did not have before!

Exadata: X3 hardware may be damaged during upgrade with FCC enabled

If you have an Exadata X3 server, and have upgraded recently or are planning an upgrade, you NEED to read the My Oracle Support article "Following software upgrade on X3 hardware with Exadata Smart Flash Cache Compression enabled, multiple flash drives may fail, leading to reduced performance or data loss" from document ID 1968234.1 to find out what you have to do.  Were you aware that Oracle is recommending you don't upgrade if you have FCC enabled because of this issue?  Check out the story, and also find out what else is recommended if you HAVE to upgrade.