Comments for yo61.com

Comment on Upgrading RHEL 6.2 to CentOS 6.2 by Watsh Rajneesh

Watsh Rajneesh — Wed, 01 Feb 2012 08:32:25 +0000

Thanks much. It worked for me too only i needed to change in one place:
- Add rhn-gnome-setup to the following line:
rpm -e yum-rhn-plugin rhn-check rhnsd rhn-gnome-setup rhn-setup

Comment on Dell DRAC BBU auto-learn tests kill disk performance by Slow database? Check RAID battery! | The Agile Radar

Slow database? Check RAID battery! | The Agile Radar — Mon, 16 Jan 2012 14:07:13 +0000

[...] Google searches turned out other articles and blog posts talking about it. It turns out one of the most frequently cited posts belongs to Robin Bowes, my ex-coworker from RIS Technology/Reliam! It also turns out Percona [...]

Comment on Upgrading RHEL 6.2 to CentOS 6.2 by Switchen van RHEL naar CentOS | Peper IT

Switchen van RHEL naar CentOS | Peper IT — Sun, 15 Jan 2012 15:02:34 +0000

[...] om je RedHat installatie over te zetten zonder Herinstallatie! Lees de prima howto op yo61.com http://yo61.com/upgrading-rhel-6-2-to-centos-6-2.html Dit bericht is geplaatst in Open Source en getagged CentOS,linux,RedHat door webmaster. Bookmark [...]

Comment on Dell DRAC BBU auto-learn tests kill disk performance by Looking for RAID Controller without Battery Learning problems ? | Weez.com

Looking for RAID Controller without Battery Learning problems ? | Weez.com — Thu, 05 Jan 2012 20:49:00 +0000

[...] Battery Learning Cycle problems and its impact to MySQL Performance. Here are couple of links (1,2). It is good to see though there are some controllers coming out which solve this problem, namely [...]

Comment on Updating Dell firmware when update_firmware fails by linux_on_dell by jarak - Pearltrees

linux_on_dell by jarak - Pearltrees — Thu, 08 Dec 2011 23:58:16 +0000

[...] Blog Archive » Updating Dell firmware when update_firmware fails As this is a system BIOS update, it is necessary to reboot for the update to be finalised. # reboot # dellBiosUpdate -f PER410-010407.hdr -u Note: the firmware packages are installed from the Dell repositories using yum -y update $(bootstrap_firmware) . However, they do not seem to be up-to-date as the latest BIOS update for the R410 is v1.4.8 which was released on Sept. 13, 2010. [...]

Comment on Updating Dell firmware when update_firmware fails by Glo

Glo — Fri, 02 Dec 2011 08:11:50 +0000

thanks man, it works R410

Comment on Dell DRAC BBU auto-learn tests kill disk performance by Hard lesson from Dell’s PERC H700 Battery Write Cache | j0e.us

Hard lesson from Dell’s PERC H700 Battery Write Cache | j0e.us — Thu, 20 Oct 2011 21:05:38 +0000

[...] some more info on this issue, I found a nice blog posting here: http://yo61.com/dell-drac-bbu-auto-learn-tests-kill-disk-performance.html Filed under: Misc. Tech Leave a comment Comments (0) Trackbacks (0) ( subscribe to comments [...]

Comment on Updating Dell firmware when update_firmware fails by igor sviridov

igor sviridov — Wed, 14 Sep 2011 05:12:48 +0000

This installation problem is caused by lack of support for CentOS – Dell code literally checks for "Red Hat Enterprise Linux Server" being present in /etc/redhat-release and fails if it's not there.
This workaround works:
http://lists.us.dell.com/pipermail/linux-poweredge/2010-December/043864.html

and allows installing firmware via yum/rpm as described in http://linux.dell.com/repo/hardware/latest/

–igor

Comment on Dell DRAC BBU auto-learn tests kill disk performance by strowger

strowger — Thu, 08 Sep 2011 08:14:44 +0000

Thanks for this post – it's an issue I'm already aware of, but there aren't enough people writing about the pitfalls of Dell kit. We've been climbing a steep learning curve with it, even using Dell's supported Redhat versions.

Couple of points:

1 – It's not the DRAC doing these tests as per your article title, it's the RAID controller.

2 – It is, as you say, not possible to prevent them. It is, however, possible to prevent the RAID from slowing down while they're run by using the Dell tools. There's obviously an element of risk in doing so, as for a short while you'll be running with write-back caching enabled and a flat battery. To live dangerously,
omconfig storage vdisk action=changepolicy controller=0 vdisk=0 writepolicy=fwb

Comment on Updating Dell firmware when update_firmware fails by MS

MS — Fri, 29 Jul 2011 00:48:14 +0000

Thanks for posting this. It worked for me.