Oracle Virtualization (OVM, KVM, OLVM)
Oracle Linux Virtualization Manager
Oracle VM 3 Premier Support extended to March 2021
Announcing Oracle VM 3 Extended Support
Oracle Linux Virtualization Manager (OLVM) replaces Oracle VM (OVM)
Oracle Cloud
MAA Best Practices for the Oracle Cloud
Oracle Documentation
Enabling Advanced Features of Oracle Net Services – Oracle 19c
Oracle Database 12c: INTERACTIVE QUICK REFERENCE
Real-World Performance (RWP) – Collaterals
Oracle Database Technologies – HA, Performance and all
Oracle Database Technologies – HA
Oracle Maximum Availability Architecture
MAA Best Practices – Oracle Database
YouTube – HA and Scalability for Modern Database Architectures
High Availability and Scalability for Modern Database Architectures – live and on-demand webinars
Oracle Diagnostics & Troubleshooting
Diagnostic Tools Catalog (Doc ID 559339.1)
ORA-600/ORA-7445/ORA-700 Error Look-up Tool (Doc ID 153788.1)
Collecting Diagnostics for Oracle Support (Doc ID 411.1)
SRDC – How to Collect Standard Information for Clusterware Startup Issues (Doc ID 2766730.1)
Autonomous Health Checks and Diagnostics
Autonomous Health Framework (AHF) – Including TFA and ORAchk/EXAchk (Doc ID 2550798.1)
Oracle Patches & Releases
Oracle Linux and Unbreakable Enterprise Kernel (UEK) Releases
Certification Information for Oracle Database on Linux x86-64 (Doc ID 1304727.2)
Release Schedule of Current Database Releases (Doc ID 742060.1)
Release Update Introduction and FAQ (Doc ID 2285040.1)
Oracle Database 19c Proactive Patch Information (Doc ID 2521164.1)
Grid Infrastructure 19 Release Updates and Revisions Bugs Fixed Lists (Doc ID 2523221.1)
Database 19 Release Updates and Revisions Bugs Fixed Lists (Doc ID 2523220.1)
Oracle Database 21c Proactive Patch Information (Doc ID 2796590.1)
Database 21c Release Updates and Revisions Bugs Fixed Lists (Doc ID 2814015.1)
Grid Infrastructure 21c Release Updates and Revisions Bugs Fixed Lists (Doc ID 2814016.1)
Oracle RAC
Certified Virtualization and Partitioning Technologies for Oracle Database and RAC Product Releases
RAC Technologies Matrix for Linux Platforms
Oracle Clusterware Control (CRSCTL) Utility Reference 19c
Managing Oracle Cluster Registry and Voting Files – Oracle 19c
Introduction to Oracle Clusterware – Oracle Clusterware supports up to 100 nodes in a cluster on configurations running Oracle Database 10g release 2 (10.2) and later releases.
Oracle RAC Fencing
Archive for the ‘STONITH’ Category – Kevin Closson
Archive for the ‘STOMITH’ Category
Archive for the ‘Cluster Fencing’ Category
RAC Expert or Clusters Expert?
Now Is The Time To Open Source! – Kevin Closson Cluster Fencing
RAC: Frequently Asked Questions (RAC FAQ) (Doc ID 220970.1)
Rebootless node fencing in Oracle RAC
http://ahfathi.blogspot.com/2014/02/oracle-rac-functions-of-io-fencing.html
Understanding Linux SCSI Reservation
What are SCSI Reservations and SCSI Persistent Reservations?
How to verify that the disk is iscsi3 persistent compliant
Symmetrix How SCSI-3 Persistent Reserve works?
Oracle RAC Cluster Interconnect & HAIP
Multicast Requirements for Networks Used by Oracle Grid Infrastructure
Grid Infrastructure Redundant Interconnect and ora.cluster_interconnect.haip (Doc ID 1210883.1)
How to Validate Network and Name Resolution Setup for the Clusterware and RAC (Doc ID 1054902.1)
The Basics of IPv4 Subnet and Oracle Clusterware (Doc ID 1386709.1)
Oracle Clusterware and RAC Support for RDS Over Infiniband (Doc ID 751343.1)
Grid infrastructure (GI):HAIP on RDS is not supported (Doc ID 2328941.1)
Oracle RAC Interconnect Protocols – Support and Roadmap (Doc ID 2434852.1)
Oracle Real Application Clusters on Extended Distance Clusters (Oracle RAC 10g R2)
Oracle RAC and Oracle RAC One Node on Extended Distance (Stretched) Clusters
Oracle RAC on Third-Party Clouds
Oracle RAC on Third-Party Clouds
Self-managed Oracle RAC on Amazon EC2
FlashGrid Enables Oracle RAC in AWS
https://en.wikipedia.org/wiki/Oracle_Database#Releases_and_versions
Network multicast support on Azure
How to enable broadcast and multicast support on Amazon (AWS) EC2
Oracle Load Testing / Benchmarking
Oracle Database Load Testing Tools – Overview
Benchmarking Oracle I/O Performance with Orion by Alex Gorbachev
Database Performance Tuning Guide – 21c
Top Tools for Troubleshooting & Performance Benchmarking
AWR and IOPS
Alejandro Vargas – Useful Scripts
Oracle AWR Reports: Understanding I/O Statistics
How to identify IOPS in AWR reports
How to get IOPS from AWR and Real-time
Enabling Automatic AWR Snapshots on PDB
ASM , ASMLIB and ASMFD
How To Check if Asynchronous I/O is Working On Linux (Doc ID 237299.1)
Asynchonous I/O not reported in /proc/slabinfo KIOCB slabdata (Doc ID 413389.1)
Information Center: ASMLib (Doc ID 1624409.2)
Why use Oracle ASM for Oracle databases
Performance and Scalability Considerations for ASM Disk Groups – 12.2
Altering Disk Groups – ASM Rebalance Oracle 19c
Choosing the Right ASM Allocation Unit for a Virtualized Oracle Database
Oracle ASM and Thin Provisioning – How To Reclaim Space
Grid Infrastructure Installation and Upgrade Guide for Linux – Do not specify multiple partitions on a single physical disk as a disk group device
Oracle ASM Mirroring and Disk Group Redundancy
Oracle’s ASM Filter Driver Revisited]
Oracle 4k Support
Advanced Format: 4k Sector Size
Deep Dive: Oracle with 4k Sectors
Oracle Fixes The 4k SPFILE Problem…But It’s Still Broken
Redo log block size on all flash
Using 4k Redo Logs on Flash, 4k-Disk and SSD-based Storage (Doc ID 1681266.1)
Supporting 4K Sector Disks (Doc ID 1133713.1)
Supporting ASM on 4K/4096 Sector Size (SECTOR_SIZE) Disks (Doc ID 1630790.1)
Oracle Linux 6 – ASM Instances Fail with 4K Sector Size LUN (Doc ID 2211975.1)
FAQ: Flash Storage with ASM (Doc ID 1626228.1)
4096 Physical Block Size Support in Oracle Linux (Doc ID 1582530.1)
New Block Size Feature for OracleASM and oracleasm-support (Doc ID 1530578.1)
19c ASM Disk Group SECTOR_SIZE
19c ASM Disk Group LOGICAL_SECTOR_SIZE
19c Specifying the Logical and Physical Sector Size
Redo log block size on ODA X6 all flash
Oracle on Flash: The Case of the 4K Redo Log Block Size – Pure Storage
Oracle IO
Simple Way to Calculate OS CPU Utilization From Oracle Database V$ Views
How To Change The Priority Of Oracle Database Background Processes
https://www.cyberciti.biz/files/linux-kernel/Documentation/filesystems/tmpfs.txt
Dynamic tracing of Oracle logical I/O
Oracle IO Alignment
Oracle Redo Log
A look into oracle redo, part 7: adaptive log file sync – Frits
Adaptive Log File Sync: Oracle, Please Don’t Do That Again
LGWR I/O is Simple, But Not LGWR Processing – Kevin Closson
Tuning ‘log file sync’ wait events – Riyaj
Changing The Number Of Oracle Database 12c Log Writers
Warning: log write elapsed time
COMMIT_WAIT and COMMIT_LOGGING
Troubleshooting: ‘Log file sync’ Waits (Doc ID 1376916.1)
Adaptive Switching Between Log Write Methods can Cause ‘log file sync’ Waits (Doc ID 1462942.1)
IF: High CPU Consumption by Oracle Background Processes (Doc ID 2070348.1)
Bug 25178179 – Several sessions wait on ‘log file sync’ in a RAC environment (Doc ID 25178179.8)
Bug 27143321 – LGWR May Not Switch Back to post/wait Mode (Doc ID 27143321.8)
“Warning: log write time” Messages Seen in LGWR Trace Files (Doc ID 601316.1)
Script to Collect Log File Sync Diagnostic Information (lfsdiag.sql) (Doc ID 1064487.1)
Where does the log writer spend its time on?
Oracle Log File Sync Wait Event
Ouch! Log File Switch Checkpoint Incomplete
Obtaining Information about Oracle Redo Log Files
Oracle Log File Switch Completion
RAC Wait Event: gcs log flush sync
Oracle 11g AMM: MEMORY_TARGET, MEMORY_MAX_TARGET and /dev/shm/
Shared Memory Virtual Filesystem
How much memory is truly used by my Oracle instance?/
Oracle Latches
Reducing Contention on Hot Cursor Objects (Cursor: Pin S)
Oracle Cache Buffer Tuning
Cache Buffer Chains Demystified -Arup Nanda
Tuning Latch Contention: Cache-buffers-chain latches
[Oracle] Database cache internals and why one data block can use multiple cache buffers
How are the Cache Buffers Chains and Cache Buffers LRU Chains used in the Buffer Cache management?
Oracle Huge Pages
Configuring HugePages for Oracle on Linux (x86-64)
Configuring Linux Hugepages for Oracle Database Is Just Too Difficult! Isn’t It? Part – I
Configuring Linux Hugepages for Oracle Database Is Just Too Difficult! Isn’t It? Part – II
HugePages on Oracle Linux 64-bit (Doc ID 361468.1)
HugePages on Linux: What It Is… and What It Is Not… (Doc ID 361323.1)
Checking usage of HugePages by Oracle databases in Linux environments
Oracle and NUMA
processor_group_name and SGA distribution across NUMA nodes
The Oracle database, in-memory parallel execution and NUMA
Oracle and Multi-threaded
Oracle Database 12c: Multithreaded Execution (or how make processes decrease)
Oracle 12c Database: Moving to Multithreaded Configuration
Oracle Multithreaded : does it worth a try ?
Multithreaded Model using THREADED_EXECUTION in Oracle Database 12c Release 1 (12.1)
Oracle x$ / v$ tables
x$tables – adp-gmbh.com
DB Statistics to SGA Variable Mapping
Oracle Compression
Oracle Database compression or Storage (All Flash) compression: A performance comparison
Interested in Oracle Database Compression Best Practices and Insights?
When to Use the Various Types of Oracle Data Compression
Oracle Advanced Compression Compared to Storage-Based Compression – The Important Differences
Oracle Backup & Snapshots
http://thebackupblog.typepad.com/thebackupblog/2008/07/optimizing-deduplication.html
Maximizing Deduplication Results with Oracle Databases and RMAN
Oracle dNFS
Step by Step – Configure Direct NFS Client (DNFS) on Linux (Doc ID 762374.1)
Configuring File System Storage for Oracle Database
Direct NFS: FAQ (Doc ID 954425.1)
Oracle & iSCSI
NetApp Element Software Linux Configuration Guide For SolidFire and NetApp HCI
Oracle Best Practices on NetApp SolidFire
Oracle Persistent Memory
Oracle 21c – Using Persistent Memory Database
Oracle Memory Speed (OMS) Filesystem Setup using Ship home (Doc ID 2795728.1)
Deploying the Oracle Memory Speed File System
Persistent Memory and Oracle Linux
PERSISTENT MEMORY FILE STORE FOR DIRECTLY MAPPED PERSISTENT MEMORY DATABASE – PMEM Oracle Patent
Testing Oracle’s Use of Optane Persistent Memory, Part 1 – Low Latency Commits – Tanel Poder
Oracle DBFS
Oracle Database Smart Flash Cache
How To Size the Database Smart Flash Cache (Doc ID 1317950.1)
How to check Smart Flash Cache (Doc ID 2218620.1)
How to measure the utilization of Smart Flash Cache ? (Doc ID 1431603.1)
Oracle Database Performance Results with Smart Flash Cache on Sun SPARC Enterprise Midrange Server
Oracle Database Smart Flash Cache with Oracle Linux
How to Improve Database Performance Using Database Smart Flash Cache
Accelerating Dell Oracle 11g R2 Database Solutions Using PCIe Solid State Storage
DB Smart Flash Cache in Oracle 11g
Using the Oracle 11GR2 database flash cache
Optimizing Oracle databases with SSD – April 2014
Database Smart Flash Cache in Oracle Database 12c Release 1
Oracle Times Ten
Reference Architecture Guide—Accelerate Oracle Database using Oracle TimesTen as an Application-Tier Cache
Linux Performance – General
30 Linux System Monitoring Tools Every SysAdmin Should Know
The 10 Best Linux Performance Monitoring Tools
20 Command Line Tools to Monitor Linux Performance
How to use SAR to Monitor System Performance in Red Hat Enterprise Linux
How to change the collection interval of the SAR data in RHEL8 and RHEL 9 beta
perf-top(1) — Linux manual page
RHEL 8 Chapter 19. Profiling CPU usage in real time with perf top
perf top: an awesome way to spy on CPU usage
Linux CPU Performance
Linux Load Averages: Solving the Mystery
Understand Linux Load Averages and Monitor Performance of Linux
USE Method: Linux Performance Checklist
Understanding CPU Steal Time – when should you be worried?
https://www.cyberciti.biz/files/linux-kernel/Documentation/
Server Performance Tuning: Interrupt & Process affinity (The CPU love affair) – irq
How do I disable the irqbalance service in Red Hat Enterprise Linux?
Determine which applications cause major page faults
Linux Process Priority
https://www.kernel.org/doc/Documentation/admin-guide/kernel-parameters.txt
How to Set Linux Process Priority Using nice and renice Commands
Linux commands: How to manipulate process priority
Process ‘niceness’ vs. ‘priority’
A brief guide to priority and nice values in the linux ecosystem
How to Use Linux Chrt Command?
https://man7.org/linux/man-pages/man1/chrt.1.html
How To Change The Priority Of Oracle Database Background Processes
What is the difference between renice and chrt commands in Linux?
Linux System – Misc
How to set ulimit values to take effect for systemd service (Doc ID 2681853.1)
How to set limits for services in RHEL 7 and systemd
How to check the values of parameters in system.conf
RHEL 8 – Chapter 13. Introduction to systemd
Overview of systemd for RHEL 7
How to set ulimit values
How to set or change the default soft or hard limit for the number of user’s processes?
Linux IO Performance
Little’s Law- An insight on the relation between latency and throughput
Using the Deadline IO Scheduler
Understanding the Deadline IO Scheduler
How to use the Noop IO Scheduler
Choosing an I/O Scheduler for 4 and the 2.6 Kernel
Improving Linux System Performance with I/O Scheduler Tuning
Increasing the maximum I/O size in Linux
SC Storage Customer Notification: Linux Large IO Sizes Can Affect iSCSI Volume Availability
RHEL Configuring Tuning Profiles for Storage Performance
What is the kernel parameters related to maximum size of physical I/O requests?
I/O Limits: block sizes, alignment and I/O hints
[Engineering Notes] I/O Limits: block sizes, alignment and I/O hints
Default Maximum IO Size Change in Linux Kernel
Performance Tuning Guide Red Hat Enterprise Linux 7
RHEL 7 and Oracle 12c (Single Instance and RAC)
Pure Storage – Linux Recommended Settings
Linux IO Benchmarking
https://www.binarylane.com.au/support/solutions/articles/1000055889-how-to-benchmark-disk-i-o
https://wiki.mikejung.biz/Benchmarking
Complete and detailed guide (with examples) to DD
Linux FIO
Inspecting disk IO performance with fio
fio – Flexible I/O tester rev. 3.27
How to measure disk performance with fio and IOPing
Performance benchmarking with Fio on Nutanix
Linux Networking
Linux Diagnostics
How To Collect Sosreport on Oracle Linux (Doc ID 1500235.1)
NTP
NTP Server – Stratum Levels Explained
Stratum Levels & NTP Explained | Welcome to the ‘Stratumopshere’
Linux FUSE Filesystems
To FUSE or Not to FUSE: Performance of User-Space File Systems
FUSE — The Linux Kernel documentation
mount.fuse3(8) — Linux manual page
Persistent Memory
LIBNVDIMM: Non-Volatile Devices
https://www.mankier.com/1/ndctl-create-namespace
https://code.vmware.com/persistent-memory-initiative
An NVDIMM Primer (Part 1 of 2)
https://en.wikipedia.org/wiki/NVDIMM
Using Persistent Memory Devices with the Linux Device Mapper
Chapter 28. Persistent Memory: NVDIMMs
Dell EMC NVDIMM-N Persistent Memory User Guide
Persistent Memory Summit 2018 – VMware vSphere Virtualization of PMEM
vSphere 6.7 : What is PMem and How vSphere DRS works with PMem configured VMs?
Configuring and Using Persistent Memory in RHEL 7.3
NVDIMM Enabling in SUSE Linux Enterprise 12, Service Pack 2
Chapter 28. Persistent Memory: NVDIMMs
Prepare an NVDIMM as a DAX device in a Linux system
Intel
CSCI 4717: Direct Mapping Cache Assignment
Approximate cost to access various caches and main memory?
Write Through and Write Back in Cache
Difference Between L1, L2, and L3 Cache: How Does CPU Cache Work?
Difference between L1 Cache L2 Cache L3 Cache memory types
Explainer: L1 vs. L2 vs. L3 Cache
Intel Persistent Memory
Unleashing the Power of Intel Optane DC Persistent Memory with Oracle TimesTen In-Memory Database
Exadata Persistent Memory Accelerator: Partnering with Intel on Optane DC Persistent Memory
Intel Optane DC Persistent Memory
Intel Optane DC Persistent Memory Module (PMM) – StorageReview
Quick Start Guide Part 1: Persistent Memory Provisioning Introduction
Quick Start Guide: Provision Intel® Optane™ DC Persistent Memory
Intel® Optane™ DC Persistent Memory Operating Modes Explained
Compatible Operating System OS for Intel® Optane™ DC Persistent Memory
Intel® Optane™ DC Persistent Memory: A Major Advance in Memory and Storage Architecture
Persistent Memory Learn More Series Part 1
Speeding Up I/O Workloads with Intel Optane Persistent Memory Modules – Eduardo Berrocal
Intel – Operating System Support for Persistent Memory
How to Emulate Persistent Memory Using Dynamic Random-access Memory (DRAM)
SCSI / RAID
RAID 10 Vs RAID 01 (RAID 1+0 Vs RAID 0+1)
What are RAID 1, RAID 1+0 and RAID 0+1
What are SCSI Reservations and SCSI Persistent Reservations?
Partition Alignment detailed explanation
Calculating filesystem stride_size and stripe_width for best performance under RAID
How to configure ext file system stride and stripe-width for optimal performance on RAID
Disk and File System Optimisation
Magic soup: ext4 with SSD, stripes and strides
What is Write Amplification (WA) and how does it effect SSDs?
Virtual Storage Appliances
https://www.flackbox.com/list-vsa-virtual-storage-appliances-storage-simulators-san-nas-demos
Unix
http://www.softpanorama.org/Commercial_unixes
Solaris
http://www.sean.de/Solaris/soltune.html
AIX
Assigning the appropriate processor entitled capacity
AIX for System Administrators – Physical – Virtual – Logical CPUs
Understanding CPU on AIX Power SMT Systems
Processor utilization difference between IBM AIX and Linux on Power – apple to apple comparison
Understanding CPU utilization on AIX
How to Use rPerfs for Workload Migration and Server Consolidation
Sockets, Cores, Virtual CPU, Logical CPU, Hyper-Threading: What is a CPU nowadays? – Oracle AWR AIX
Veritas
http://cuddletech.com/veritas/index.html
EMC
https://community.emc.com/community/connect/everything_oracle
http://clariionblogs.blogspot.com
http://virtualgeek.typepad.com/virtual_geek/celerra-vsa-howto/
Netapp
https://communities.netapp.com/community/netapp-blogs/storage_nuts_n_bolts
NetApp From the Ground Up – A Beginner’s Guide – Index
Hitachi
http://blogs.hds.com/hu
Pure Storage
Oracle Database Recommended Settings for FlashArray
Reclaiming Unused Space in an Oracle Database
What’s New with Pure Storage and VMware
Adaptive Queueing, Storage I/O Control and QoS (Part 1)
What’s new in ESXi 6.5 Storage Part I: UNMAP
In-Guest UNMAP Fix in ESXi 6.5 Part II: Linux
What’s New in Core Storage in vSphere 6.7 Part II: Sector Size and VMFS-6
What’s New in Core Storage in vSphere 6.7 Part V: Rate Control for Automatic VMFS UNMAP
Pure Storage WebCast – vSphere NVMe over Fabrics Deep Dive with Pure Storage
Understanding VMware ESXi Queuing and the FlashArray
Troubleshooting for VMware Solutions
VMUG Pure Storage: Understanding vSphere Block Storage Performance via Queues
How To: Setup NVMe-FC with VMware
Modeling Workload IO Size Mixes with Oracle’s vdbench tool
Oracle 18c Runs Faster with DirectFlash Fabric – NVMe-oF RoCE
NVMe-oF Multipath Configuration for Pure Storage Datastores
Adaptive vVol Performance Management
SNIA
SNIA Compute, Memory, and Storage Initiative SIGs
SNIA Compute, Memory, and Storage Initiative – Knowledge Center
Concurrent NVMe and SCSI over Fibre Channel
Comparative Performance Analysis of NVMeFC and SCSI FCP
Deep Dive into NVMe over Fibre Channel
General Storage Concepts
Fibre Channel addressing – StorageFreak
What is NVMe and why is it important? A Technical Guide
Storage Fabric Options with NVMe
VAST
Vast – UNIVERSAL STORAGE EXPLAINED
LightBits
LightOS for VMware Performance, Simplicity, Scalability
Harness the Power of NVMe®/TCP to Get Highly Available Storage for Virtualized Applications
The Rise of Disaggregated Storage
Mellanox/NVIDIA/Infiniband/RoCE
Single Root IO Virtualization (SR-IOV)
How-to: Configure RoCE PVRDMA Namespace in VMware vSphere 7.0
Setting up a 100GbE PVRDMA Network on vCenter 7
The Fast Lane for Data Transfer – Paravirtual RDMA(PVRDMA) Support for Native Endpoints
RoCE and InfiniBand: Which should I choose?
Quest Community
https://questoraclecommunity.org/dashboard
https://forum.questoraclecommunity.org/groups
Oracle Software Downloads
https://www.oracle.com/database/technologies/oracle-database-software-downloads.html#19c
https://edelivery.oracle.com/osdc/faces/SoftwareDelivery
Exadata and OVM
Oracle VM – 4x More Marketing, 4x Fewer Substantiated Facts
http://houseofbrick.com/exadata-vs-vblock-a-case-study
Best Practices for operating Exadata Cloud Service and Exadata Cloud@Customer
Oracle OCI and OCVS
Oracle Bloggers
http://asmsupportguy.blogspot.com
https://bartsjerps.wordpress.com
A journey in Virtualizing Oracle on VMware 