Some good stuff, and lots of boring Oracle crap.

How to Create a Local Red Hat Repository

There are many reasons you may want a local Red Hat Enterprise Linux repository. Bandwidth is a major factor as downloading updates from the Internet can be time and bandwidth consuming. Another reason may be that your servers are not connected to the Internet and thus need to get their updates from a local source.

Tech Bullshit Generator

Generate fresh tech bullshit with our online bullshit generator. Find interesting Job title & corporate bullshit jargon on web.

Watch Explosions In The Sky Get Epic At The 9:30 Club

If Explosions In The Sky’s records are watershed moments for its fans, then the band’s live shows are a Biblical flood. The group recently released its sixth studio album, The Wilderness. On Thursday, Explosions In The Sky brought its epic, searching sound to a sold-out show at Washington, D.C.’s famed 9:30 Club.

Breaking Down Radiohead’s Orchestration in “Burn the Witch” – Soundfly

Radiohead’s new release “Burn the Witch” marks the end of a long period of silence from the band. It is a patient, driving piece with an engaging form that seamlessly incorporates orchestral string instruments into the music.

Chris’s Wiki :: blog/linux/ClearingSMARTComplaintsII

A couple of months ago I wrote about clearing SMART complaints about one of my disks by very carefully overwriting sectors on it, and how ZFS made this kind of safe. In a comment, Christian Neukirchen recommended using hdparm –write-sector to overwrite sectors with read errors instead of the complicated dance with dd that I used in my entry.

Mailtrain | Self hosted email newsletter app

Self hosted email newsletter app

How to Land a 737 (Nervous Passenger Edition) (v2.0)

Video edition of my Quora answer at https://www.quora.com/What-should-I-do-if-the-pilot-passes-out-and-I-with-no-flight-training-have-to-land-the-plane Version 2.0 changes include more factual accuracy, more exterior shots, and more non-trademark-holding airlines. Voice acting credits: Erika Bajbek Nelson Murray Sal Testa

VLOOKUP function

The VLOOKUP function in Excel finds things in a table or range by row. The secret is to organize your data so that the value you look up is to the left of the value you want to find. Then use VLOOKUP to find the value.

A history of electronic music in 476 songs

UbuWeb is hosting a massive collection of electronic and electroacoustic songs from 1937-2001. This is from a 62 CD set called “The History of Electroacoustic Music” that was floating around as a torrent, reputedly curated by a Brazilian student. It’s sketchy. The torrent vanished and the collection has long been unavailable.

Security Hardening with Ansible

Ansible is an open-source automation tool developed and released by Michael DeHaan and others in 2012. DeHaan calls it a “general-purpose automation pipeline” (see Resources for a link to the article “Ansible’s Architecture: Beyond Configuration Management”). Not only can it be used for automated configuration management, but it also excels at orchestration, provisioning of systems, zero-time rolling updates and application deployment.

Adams Bros Blog

I recently had a misfortune, in that somehow my volume group meta-data got corrupted, and LVM would not enable the volume group. Essentially, I lost my LVM volume disk. This happened after I resized a volume, and had done a file system check before and after. So, I knew my data was still there.

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Here’s the Oracle stuff – ASM, ACFS, OVM

ASM I/O Statistics Utility

When I need to deal with ASM I/O statistics, the tools provided by Oracle (asmcmd iostat and asmiostat.sh from MOS [ID 437996.1]) do not suit my needs. Then, I decided to create my own asmiostat utility that is helpful for 3 main reasons: It provides useful real-time metrics.

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ASM metrics are a gold mine. Welcome to asm_metrics.pl, a new utility to extract and to manipulate them in real time

First of all, I would like to mention that my asmiostat utility has been extracted from my real_time.pl script. This is due to the fact that I just added a new feature that would have been difficult to add/maintain within the real_time.pl script (because it contains several real time tools).

Snapshots Are NOT Backups

by Tim Chien, Oracle Introduction While storage snapshots are widely used to quickly create point-in-time virtual copies of data, they are also often marketed as valid “backup solutions”. This is an incorrect and dangerous assumption because snapshots, unless copied to secondary media (e.g. another storage array or tape), do not protect against media failures.

Oracle VM NUMA Best Practices

By Roddy Rodstein 02/13/2015 This post is applicable to Oracle VM Release 3.x, Oracle Exadata X5-2, Exalogic X5-2, and Oracle Database Appliance X5-2 Contemporary CPU’s from Intel and AMD have NUMA architectures. NUMA stands for Non-Uniform Memory Access. With NUMA each physical CPU (pCPU) will be assigned its own local memory.

Oracle Apps Blog

In order to enable High Availability for a server pool you have to have access to shared storage using either clustered OCFS2 on SAN, or ISCSI storage, or NFS on NAS. Lets say you don’t have access to that type of infrastructure or simply don’t need some of the HA features (live migration, automatic restart of failed VMs).

Oracle ASM Cluster File Systems (ACFS) in Oracle Database 11g Release 2

Oracle ASM Cluster File System (ACFS) is a general purpose cluster file system implemented as part of ASM. It can be used to store almost anything, including the database executables. The only things that should not be stored in ACFS are the Grid Infrastructure home and any Oracle files that can be directly stored in Oracle ASM.

Script to re-create the ASM disk group on Exadata

Often, the Exadata arrives at the customer site with High redundancy disk groups when the customer wants to exploit as much of the disk space available on the Normal redundancy.

Physical Disk, Cell Disk, Grid Disk, and ASM Disk in Exadata

Exadata is the Ferrari of the technology world. It’s considered the technology for the select few, but everyone dreams about it. There is very little information available on the Internet right now about the architecture and the administration of Exadata, though it’s a huge subject in itself, which demand numerous high quality books, dedicated blogs, websites and special interest groups.

My Oracle Notes

Oracle Automatic Storage Management (ASM) is a well-known, largely used multi-platform volume manager and file system, designed for single-instance and clustered environment. Developed for managing Oracle database files with optimal performance and native data protection, simplifying the storage management; nowadays ASM includes several functionalities for general-purpose files too.

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Helmut’s RAC / JEE Blog

Overview ACFS/HANFS HANFS 12.1 only supports NFS v3 over Ipv4, with no NFS locking HANFS requires NFS in order to run. It is assumed that NFS (and its associated needs) will be started by init scripts at node boot time. NFS will need to be running on all nodes of the cluster.

Plants:

Sansevieria trifasciata

Sansevieria trifasciata , also called viper’s bowstring hemp, snake plant, mother-in-law’s tongue or Saint George’s sword (in Brazil) is a species of flowering plant in the family Asparagaceae, native to tropical West Africa from Nigeria east to the Congo.

Dypsis Lutescens

The areca palm, also known as the butterfly and golden cane palm is the most popular grown indoors from the dypsis genus, and easy to grow. Multiple cane like stems grow from the root system and produce attractive arching fronds, with quite narrow leaflets.

How To Care For The ZZ Plant – Zamioculcas Zamiifolia

The ZZ Plant – Zamioculcas zamiifolia has become very popular and is grown and used indoors around the world. Interior plantscapers always look for “new” plants they can use indoors to provide a different look. Growers always look at new items to offer customers something… #fal #spr #sum

Spathiphyllum – Wikipedia, the free encyclopedia

Spathiphyllum is a genus of about 40 species of monocotyledonous flowering plants in the family Araceae, native to tropical regions of the Americas and southeastern Asia. Certain species of Spathiphyllum are commonly known as Spath or peace lilies.