Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

Using elevator=noop in RHEL

Posted on 2014-03-26
2
Medium Priority
?
356 Views
Last Modified: 2014-03-27
Why do we use elevator=noop in /etc/grub.conf on RHEL, I believe that grub.conf file resides in /boot/grub.....So should elevator=noop be defined in /boot/grub/grub.conf and /etc/grub.conf is wrong...
0
Comment
Question by:aanya247
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
2 Comments
 
LVL 62

Accepted Solution

by:
gheist earned 2000 total points
ID: 39958192
/etc/grub.conf is correct place.
FHS says:
2. Programs necessary to arrange for the boot loader to be able to boot a file must be placed in /sbin.
Configuration files for boot loaders must be placed in /etc.
The GRUB bootloader reads its configurations file before booting, so that must be placed in /boot. However, it is a
configuration file, so should be in /etc. The answer here is a symbolic link such as /etc/grub/menu.lst ->
/boot/menu.lst.
0
 
LVL 62

Expert Comment

by:gheist
ID: 39960101
elevator=noop is very bad RAID controllers have very bad sorting algorithms in firmware.
deadline somehow compensates that
0

Featured Post

Learn how to optimize MySQL for your business need

With the increasing importance of apps & networks in both business & personal interconnections, perfor. has become one of the key metrics of successful communication. This ebook is a hands-on business-case-driven guide to understanding MySQL query parameter tuning & database perf

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Fine Tune your automatic Updates for Ubuntu / Debian
Google Drive is extremely cheap offsite storage, and it's even possible to get extra storage for free for two years.  You can use the free account 15GB, and if you have an Android device..when you install Google Drive for the first time it will give…
Learn several ways to interact with files and get file information from the bash shell. ls lists the contents of a directory: Using the -a flag displays hidden files: Using the -l flag formats the output in a long list: The file command gives us mor…
This demo shows you how to set up the containerized NetScaler CPX with NetScaler Management and Analytics System in a non-routable Mesos/Marathon environment for use with Micro-Services applications.
Suggested Courses

715 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question