A Tour Of The Server ILOM Web GUI

Oracle exadata is a combination of servers and storage cell. Each of this has ILOM interface which is used for hardware management and maintenance activity.

What is ILOM?

An ILOM is a service processor (SP) that is embedded into all Oracle Sun Server–based products.Oracle ILOM’s dedicated hardware and software is pre-installed on a variety of Oracle Sun server platforms.

What Is ASREXACHK Utility?

ASREXACHECK is the utility which is used to make sure that Exadata machine is communicating with ASR manager.

It checks the ASM configuration and performs the test from Database server and ILOM which sends mail from both to configured mail ID and it will report either succeeded or failure to send email.

The asrexacheck utility checks for known configuration issues as well as checking for any previous hardware faults that may not have been reported by ASR due a misconfiguration on the Exadata nodes.

When performing Preventive Maintenance on Exadata the Oracle will ask to run a PM Health Check script (asrexachk) on the individual systems to check the ASR configuration, as well as the health of the hardware components

Installation

Oracle Exadata default passwords

When Exadata get deployed,  by default it configured with Oracle standard username and password. As per good practice you should always change default password once Exadata handed over to you from Oracle. Below is the list of default Users and Passwords for Exadata.

Database Server

root/welcome1

oracle/welcome1

grid/welcome1

grub/sos1Exadata

Database server ILOMs

root/welcome1

Exadata Storage Cell Server

root/welcome1

celladmin/welcome1

cellmonitor/welcome1

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Exadata Storage Cell Server ILOMs

Cell Server Connectivity and Port Details

Following image shows back end layout of cell storage server.

Short description for each port :

ILOM -- Useful to manage the Hardware remotely

eth0 -- Use to manage the server from OS level

eth1 , eth2 & eth3 -- Not connected as there is no public network required for it.

IB0 & IB1 -- Infiniband network ports (Bonded)

KVM -- For kvm connectivity.

Exadata Terms

HP - High Performance

HC - High Capacity

IOPS - IOs Per Second

LUN - Logical Unit Number

MS - Management Server

RS - Restart Server

Cellsrv – Cell Server

SATA - Serial Advanced Technology Attachment

SAS - Serial Attached SCSI

PDU - Power Distribution Unit

ILOM - Integrated Lights Out Manager

IB - InfiniBand

EHCC - Exadata Hybrid Columnar Compression

CU - Compression Unit

UDMs - User Defined Metrics

RDS - Reliable Data Socket protocol

SNMP - Simple Network Management Protocol

iDB - Intelligent Database protocol

EM - Enterprise Manager

EMGC - Enterprise Manager Grid Control

DBRM - Database Resource Manager