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Showing posts from April, 2018

Exadata False Amber LED in the ILOM

<<Back to Exadata Main Page We got email alert from one dom0 machine in X5-2 Eighth Rack HC 8 TB: DiskControllerFirmwareRevision Unknown. Looks like LSI MegaRAID controler info cannot be fetched.  domU machines running under this dom0 are still working properly. # dbmcli -e list physicaldisk 252:0 B7G5GA normal 252:1 B7HPXA failed 252:2 B7J55A failed 252:3 B6RT7A failed # /opt/MegaRAID/MegaCli/MegaCli64 -adpallinfo -a0 | grep -i package   ]# <<<<<<------- BLANK ]# /opt/MegaRAID/MegaCli/MegaCli64 /c0 show termlog  Controller = 0 Status = Failure Description = Controller 0 not found Solution :Oracle engineer replaced this "suspected" RAID controller Further Issue: Even after replacing the RAID controller the Amber LED in the ILOM of on Exadata Compute nodes was not cleared. The solution is documented in  Doc ID 2111921.1 How to clear AMBER LED on Exadata Compute nodes when Compute Node disks report offline but no fault detected by R...

Exadata- DiskControllerFirmwareRevision Unknown

<<Back to Exadata Main Page If you are receiving notification like this, it means there is something wrong and you must take prompt action. Attribute Name DiskControllerModel Required LSI MegaRAID 9361-8i Found Unknown Attribute Name DiskControllerFirmwareRevision Required 24.3.0-0084 Found Unknown Quick Verification # dbmcli -e list physicaldisk 252:0 B7G5GA normal 252:1 B7HPXA failed 252:2 B7J55A failed 252:3 B6RT7A failed # /opt/MegaRAID/MegaCli/MegaCli64 -adpallinfo -a0 | grep -i package  # <<<<<<------- BLANK # /opt/MegaRAID/MegaCli/MegaCli64 /c0 show termlog  Controller = 0 Status = Failure Description = Controller 0 not found. IF ASR is in place manually open service request for oracle to investigate and fix the issue Solution in my case Oracle engineer replaced this "suspected" RAID controller. # dbmcli -e list physicaldisk ...

Exadata- An Introduction

<<Back to Exadata Main Page What is Oracle Exadata The Oracle Exadata Database Machine is a combined compute and storage system marketed for running Oracle Database software. It primarily consists Storage Grid (Storage Machines) Compute Grid (Database Machines) Network Grid (Network Components) An oracle Exadata machine comes as Full Rack, Half Rack, Quarter Rack and Eighth Rack. An overview of hardware configuration and differences among them are presented in the below table Hardware Components of Oracle Exadata Database Machine Edition Oracle Exadata Database Machine Full Rack Oracle Exadata Database Machine Half Rack Oracle Exadata Database Machine Quarter Rack Oracle Exadata Database Machine Eighth Rack Oracle Exadata Database Machine X7-2 8 database servers 4 database servers 2 database servers 2 database servers. Each server has 1x 24-core processor with all 24-cores enabled 14 Exadata Storage Ser...