From Fedora Project Wiki
David Ramsey
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About Dramsey
Email: MailTo (dramsey AT fedorapro ject DOT org)
Located on the far right of this picture (in the pink shirt,) I am a Fedora 9, 10, 11, 12, 13, 14, and 15 user currently experiencing the x86 and x86_64 versions. I am trying to integrate useful system administration ideas for my Fedora systems.
- I am very interested in large memory model programs and multi-core computer systems. I enjoy using virtual machines (VMs) in order to develop a formidable system solution. Through the use of VMs, I am able to try out a variety of software solutions on a VM prior to installation of the software on my production system.
- I have taken RH033VT, RH131VT, RH142VT, RH253VT, and RH301VT coursework, in order to further establish my Red Hat educational foundation.
- Recently, I have greatly enjoyed 24 hour access to the Live Access Labs running Red Hat Enterprise Linux 5. Now, I have the Red Hat Enterprise Linux 6 Beta running on a VM.
- My next training classes will be the "Red Hat Enterprise System Monitoring and Performance Tuning" - RH442VT and "Red Hat Enterprise SELinux Policy Administration" - RHS429 as well as "Red Hat Enterprise Linux Update Course" - RHUP305
Virtual Machine Information
FYI on Virtual Machine Information integration
- Each VM has 3072 MB of RAM as well as two CPU cores allocated for execution and evaluation purposes within an established baseline VM system.
- My latest Fedora 12 (Constantine) kernel is 2.6.32.12-115.fc12.i686.PAE. I am very interested in progress in GRUB Ext4 support, NFSv4Default and NetworkManager System Connections
- Good to see how the iBus Intelligent Input Bus "input framework method system" and Ext4 file system "checksum feature for the journal" have developed.
- Very interesting to see how the Yum Langpack Plugin and the Udisks disk management improvements are proceeding.
- When I have the VMs running with 1536 MB of RAM, I am able to enjoy using VMs for executing my Fedora 9, 10, 11, and 12 systems. With the effective use of VMs, I am able to concurrently run 9 VMs on my workstation. There are three pictures at the bottom of this page:
Current running systems
Using embedded code have updates automatically done for running systems status
x86_64
| Version | Kernel | Status | Running | Memory | Swap space |
|---|---|---|---|---|---|
| Fedora 14 (Laughlin) two systems running with VMware need Hardware Profile 10 data and Hardware Profile 11 data | 2.6.35.9-64.fc14.x86_64 ==> 2.6.35.10-67.fc14.x86_64 |  |
 |
8.0 GB | 4.0 GB 8.0 GB |
i686
| Version | Kernel | Status | Running | Memory | Swap space |
|---|---|---|---|---|---|
| Fedora 12 (Constantine) Alpha, Beta, and RC two systems running with VMware Hardware Profile 1Hardware Profile 2 | 2.6.32.12-115.fc12.i686.PAE ==> 2.6.32.26-175.fc12.i686.PAE | |
|
3.0 GB | 4.0 GB |
| Fedora 13 (Goddard) two systems running with VMware Hardware Profile 3 Hardware Profile 4 | 2.6.33.5-131.fc13.i686.PAE ==> 2.6.34.7-66.fc13.i686.PAE | |
|
3.0 GB | 4.0 GB |
| Fedora 13 (Goddard) Beta and Security Spin two systems running with VMware Hardware Profile 5 Hardware Profile 6 | 2.6.33.5-112.fc13.i686.PAE | |
|
3.0 GB | 4.0 GB |
| Fedora 14 (Laughlin) Rawhide and Beta two systems running with VMware Hardware Profile 7 Hardware Profile 8 | 2.6.35.10-67.fc14.i686.PAE | |
|
3.0 GB | 4.0 GB |
| Fedora 15 (Lovelock) Rawhide one system running with VMware need Hardware Profile 9 data | 2.6.36.1-7.rc1.fc15.i686 ==> 2.6.37-0.rc5.git5.1.fc15.i686 | |
|
3.0 GB | 0.0 GB |
| Red Hat 6 (Beta) Beta one system running with VMware | 2.6.32-19.el6.i686 | |
|
3.0 GB | 4.0 GB |
i686 and x86_64 kernels
Where I get my kernels - http://koji.fedoraproject.org/koji/packageinfo?packageID=8
system core and memory utilization
With mid-December procurements arrival, I am determining how to best utilize the 16 cores and 80 GB of memory for effective systems. Add system diagrams!!!
- Four systems with two cores each for i686, running about 16 GB of memory.
- Six or seven systems with cores for x86_64, running from 48 to 56 GB of memory.
- Total allocated memory will be ranging from 64 to 72 GB of memory and will leave about 8 GB to 16 GB of memory free for host operations.
Software which I like to have running on my systems
 Here are some relevant system administrator links:
Red Hat Magazine - try searching for the RHCE Tips and Tricks The Geek Stuff - good to review Linux in a Nutshell, 5th Edition - directory of Linux commands 10 Sites Offering Free Linux Courses Online - free online learning 13 Of the Best Linux Tutorials and OpenCourseWare on the Web - free tutorials 12 Amazing and Essential Linux Books To Enrich Your Brain and Library - recommended books Red Hat Enterprise Linux - Academic Editions Server - practice on Red Hat based systems |
- aide
- dsniff
- hdparm
- iotop
- logwatch
- nmap
- ntop (considering)
- tripwire
- wireshark
- xosview
Some system information
Food for thought
This is a tip
My current workstation has eight (8) x86_64 computing cores and 16 GB of RAM as well as four 500 GB harddisks (SATA Seagate 7200.12.) The Seagate 7200.12, 500 GB harddisk is only "one" platter and is very quiet as well as very low power consumption and fast for my use. I am considering a plan on doing an upgrade to the Seagate 7200.12, 1 TB harddisk next calendar year. Another workstation is arriving with eight (8) x86_64 computing cores and 64 GB of RAM.
My current workstation has eight (8) x86_64 computing cores and 16 GB of RAM as well as four 500 GB harddisks (SATA Seagate 7200.12.) The Seagate 7200.12, 500 GB harddisk is only "one" platter and is very quiet as well as very low power consumption and fast for my use. I am considering a plan on doing an upgrade to the Seagate 7200.12, 1 TB harddisk next calendar year. Another workstation is arriving with eight (8) x86_64 computing cores and 64 GB of RAM.
Another tip
Google's IPV6 web site - http://ipv6google.com/ try it.
Google's IPV6 web site - http://ipv6google.com/ try it.
This is important
A finding on my behalf regarding concurrent guest operating systems is to keep the ntp time clock in sync between the variety of guest VMs.
A finding on my behalf regarding concurrent guest operating systems is to keep the ntp time clock in sync between the variety of guest VMs.
This is something else important
Fedora 12 Alpha with 3072MB of RAM. After that amount of 3 Gigabytes (GB) RAM, the 32-bit kernel is abending. Also, the "Swap" space is defined about 4 GB.
Fedora 12 Alpha with 3072MB of RAM. After that amount of 3 Gigabytes (GB) RAM, the 32-bit kernel is abending. Also, the "Swap" space is defined about 4 GB.
This is a note
The Fedora 11 and Fedora 12 Alpha version's "Swap" space are defined about 3 GB, versus the Fedora 9 and 10 versions' "Swap" space are defined about 2 GB when all versions were provided 1.5 GB of RAM.
The Fedora 11 and Fedora 12 Alpha version's "Swap" space are defined about 3 GB, versus the Fedora 9 and 10 versions' "Swap" space are defined about 2 GB when all versions were provided 1.5 GB of RAM.
This is an additional note
At this time, I am not really very impressed with the dracut product. The dracut execution time was about 15-25 minutes to update my kernels dependent on the virtual machine being used. As of September 22nd, 2009, I have used dracut about 40+ times. Maybe when the F12 Beta and/or F12 Final Release are made, dracut will be better. Update, with F12 Beta and RCs, the dracut execution time is now about 2-3 minutes.
At this time, I am not really very impressed with the dracut product. The dracut execution time was about 15-25 minutes to update my kernels dependent on the virtual machine being used. As of September 22nd, 2009, I have used dracut about 40+ times. Maybe when the F12 Beta and/or F12 Final Release are made, dracut will be better. Update, with F12 Beta and RCs, the dracut execution time is now about 2-3 minutes.
This is a warning
A little FYI on updating to the 2.6.31-2.fc12.i686 and 2.6.31-2.fc12.i686.PAE kernels, a separate rpm install was needed of the bindutils-2.19.51.0.14-31.fc12.i686.rpm package from the original install media's iso, in order to address the bindutils dependency prior to updating to the 2.6.31-2.fc12.i686 and 2.6.31-2.fc12.i686.PAE kernels.
A little FYI on updating to the 2.6.31-2.fc12.i686 and 2.6.31-2.fc12.i686.PAE kernels, a separate rpm install was needed of the bindutils-2.19.51.0.14-31.fc12.i686.rpm package from the original install media's iso, in order to address the bindutils dependency prior to updating to the 2.6.31-2.fc12.i686 and 2.6.31-2.fc12.i686.PAE kernels.
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This is a caution
Currently, the Virtual PC 6.0.156.0 and the F12 Alpha iso are having some serious problems with getting X to work. Therefore, my /etc/inittab file on those test subsystems is set to run at runlevel 3 instead of 5.
Currently, the Virtual PC 6.0.156.0 and the F12 Alpha iso are having some serious problems with getting X to work. Therefore, my /etc/inittab file on those test subsystems is set to run at runlevel 3 instead of 5.
Previous running systems
| Version | Kernel | Status | Memory | Swap space |
|---|---|---|---|---|
| Fedora 9 (Sulphur) | 2.6.27.25-78.2.56.fc9.i686 | |
1.5 GB | 2.0 GB |
| Fedora 10 (Cambridge) | 2.6.27.30-170.2.82.fc10.i686 | |
1.5 GB | 2.0 GB |
| Fedora 11 (Leonidas) | 2.6.30.5-43.fc11.i586 and 2.6.30.5-43.fc11.i686.PAE | and |
1.5 GB and 1.5 GB | 3.0 GB |
| Fedora 12 (Constantine) Alpha | 2.6.31-33.fc12.i686 and 2.6.31-33.fc12.i686.PAE | and |
1.5 GB and 1.5 GB | 3.0 GB |
Locations
- Tokyo, Japan &
- The University of Maryland - College Park, Maryland
Projects
Fedora Purchases
- To facilitate phone calls around the world, I use unlimited world Skype for only $12.95 per month or free Skype to Skype chat, audio, and video for "Windows, Mac OS X or Linux" even for "iPhone."
Things I do
- Both x86 and x86_64 versions of Fedora 9, Fedora 10, Fedora 11, Fedora 12, Fedora 13, and Fedora 14 DVDs and USB Distribution in Japan see Akihabara "Electric City" and The University of Maryland - College Park, Maryland
File:Artwork MarketingCollateral userbar fedora ambassador.png |
System Data URLs
- How do I know how many file descriptors are being used system-wide in Red Hat Enterprise Linux?
- Operating System Tuning Parameters
- Phoenix/Tools
