Comments for Sysconfig's Blog http://sysconfig.org.uk FreeBSD, Linux, Virtualisation, Resilience, Scalability, Storage, and other (random) things Sun, 13 May 2012 07:44:59 +0000 hourly 1 http://wordpress.org/?v=3.3.2 Comment on GlusterFS, a workhorse that needs to be tamed by admin http://sysconfig.org.uk/2011/07/glusterfs-a-workhorse-that-needs-to-be-tamed/comment-page-1/#comment-547 admin Sun, 13 May 2012 07:44:59 +0000 http://sysconfig.ossafe.org/?p=671#comment-547 Hi Eric. Thanks for your comment. A patch was made available shortly after I wrote this article, and by now it should be in the GlusterFS codebase. On top of that, since RedHat bought GlusterFS, I'm convinced they are interested in resolving this, because it would be very helpful when it comes to running KVM in scaling setups. (I'm sure you guys at VMware monitor your competition closely :-)) Hi Eric. Thanks for your comment. A patch was made available shortly after I wrote this article, and by now it should be in the GlusterFS codebase. On top of that, since RedHat bought GlusterFS, I’m convinced they are interested in resolving this, because it would be very helpful when it comes to running KVM in scaling setups. (I’m sure you guys at VMware monitor your competition closely :-) )

]]> Comment on Slim and up-to-date CentOS 6.2 AMIs for Amazon EC2 by admin http://sysconfig.org.uk/2012/02/slim-and-up-to-date-centos-6-2-amis-for-amazon-ec2/comment-page-1/#comment-546 admin Sun, 13 May 2012 07:41:19 +0000 http://sysconfig.org.uk/?p=1235#comment-546 At the moment I'm lacking time, I'm afraid, but I'm planning on finishing development of my tool which would automatically migrate AMIs between regions. Then my images will be available in different regions much much quicker. Can't give you a timeline yet, though. Bear with me. At the moment I’m lacking time, I’m afraid, but I’m planning on finishing development of my tool which would automatically migrate AMIs between regions. Then my images will be available in different regions much much quicker. Can’t give you a timeline yet, though. Bear with me.

]]> Comment on Scientific Linux — an alternative to CentOS? by Eric Pretorious http://sysconfig.org.uk/2011/08/scientific-linux-an-alternative-to-centos/comment-page-1/#comment-545 Eric Pretorious Sun, 13 May 2012 06:28:51 +0000 http://sysconfig.org.uk/?p=1071#comment-545 Thanks for sharing your insight, Carsten. I spent a bit of time poking around the SL web site but found it sparse, uninviting, and unintuitive but your explanation has rekindled my interest. I'll try out LS later this week. Thanks for sharing your insight, Carsten. I spent a bit of time poking around the SL web site but found it sparse, uninviting, and unintuitive but your explanation has rekindled my interest.

I’ll try out LS later this week.

]]> Comment on GlusterFS, a workhorse that needs to be tamed by Eric Pretorious http://sysconfig.org.uk/2011/07/glusterfs-a-workhorse-that-needs-to-be-tamed/comment-page-1/#comment-544 Eric Pretorious Sun, 13 May 2012 06:14:44 +0000 http://sysconfig.ossafe.org/?p=671#comment-544 Thanks for the excellent write-up, Carsten. I've been looking into using GlusterFS to create a highly-available, parallel storage cluster for storing virtual disk images but had not realized that GlusterFS' healing function would prevent the use of the VM's during recovery of a failed/downed node. I look forward to your next instalment and hope that you'll continue to address this particular application of GlusterFS. Thanks for the excellent write-up, Carsten. I’ve been looking into using GlusterFS to create a highly-available, parallel storage cluster for storing virtual disk images but had not realized that GlusterFS’ healing function would prevent the use of the VM’s during recovery of a failed/downed node.

I look forward to your next instalment and hope that you’ll continue to address this particular application of GlusterFS.

]]> Comment on Slim and up-to-date CentOS 6.2 AMIs for Amazon EC2 by Gio Arteaga http://sysconfig.org.uk/2012/02/slim-and-up-to-date-centos-6-2-amis-for-amazon-ec2/comment-page-1/#comment-543 Gio Arteaga Sat, 28 Apr 2012 14:41:22 +0000 http://sysconfig.org.uk/?p=1235#comment-543 Can you please make them available in Zone: us-west-2a (oregon region)? West North California is more expensive. You Rock! Can you please make them available in Zone: us-west-2a (oregon region)? West North California is more expensive.

You Rock!

]]> Comment on So long, XenServer by darkfader http://sysconfig.org.uk/2011/01/so-long-xenserver/comment-page-1/#comment-536 darkfader Fri, 02 Mar 2012 15:25:51 +0000 http://sysconfig.ossafe.org/?p=324#comment-536 Hehe, I loved this article. I've used / supported XenServer since 3.x and it has been utter crap from the moment they have been adding XAPI. You've reminded me of most things I experienced and the general feeling of hopeless-ness when trying to unbreak their bugs. The only thing you missed was the joy when the first XenAPP tests created invalid entries in active directory. Or the fact that *ever since* Citrix bought XenSource they created illegal MAC Adresses for the VMs. And now that they added iSCSI and stuff to the GUI they just had to also use a illegal IQN. It points at example.com - which is legit to use for testing in general. BUT if you deliver a product, you need to have a valid IQN!!! Funny enough now the whole community is being turned head-down to also use it with normal Xen via OpenStack/project Kronos and XCP. Mostly the debian users though, and they are very well used to having broken Xen. I'm currently going through all parts of XenServer for a customer and I just can't believe the sheer amount of bugs I'm (yet again) running into. Anyway, for you or other readers - my dom0 favorites are: - Oracle VM 2/3 (without the GUI) - AlpineLinux Both rock at not!!!!!!!!!!!!!!!!!!!! getting into your way. Hehe, I loved this article. I’ve used / supported XenServer since 3.x and it has been utter crap from the moment they have been adding XAPI. You’ve reminded me of most things I experienced and the general feeling of hopeless-ness when trying to unbreak their bugs.
The only thing you missed was the joy when the first XenAPP tests created invalid entries in active directory.
Or the fact that *ever since* Citrix bought XenSource they created illegal MAC Adresses for the VMs. And now that they added iSCSI and stuff to the GUI they just had to also use a illegal IQN. It points at example.com – which is legit to use for testing in general. BUT if you deliver a product, you need to have a valid IQN!!!

Funny enough now the whole community is being turned head-down to also use it with normal Xen via OpenStack/project Kronos and XCP.
Mostly the debian users though, and they are very well used to having broken Xen.

I’m currently going through all parts of XenServer for a customer and I just can’t believe the sheer amount of bugs I’m (yet again) running into.

Anyway, for you or other readers – my dom0 favorites are:
- Oracle VM 2/3 (without the GUI)
- AlpineLinux

Both rock at
not!!!!!!!!!!!!!!!!!!!!
getting into your way.

]]> Comment on GlusterFS, a workhorse that needs to be tamed by admin http://sysconfig.org.uk/2011/07/glusterfs-a-workhorse-that-needs-to-be-tamed/comment-page-1/#comment-534 admin Wed, 15 Feb 2012 18:33:10 +0000 http://sysconfig.ossafe.org/?p=671#comment-534 Not sure if I understand your intentions correctly. Read-only media in Gluster? That doesn't sound right :) Best to check the gluster IRC channel on Freenode or their community websites to get specific advice, I suppose. Not sure if I understand your intentions correctly. Read-only media in Gluster? That doesn’t sound right :)
Best to check the gluster IRC channel on Freenode or their community websites to get specific advice, I suppose.

]]> Comment on GlusterFS, a workhorse that needs to be tamed by sunghost http://sysconfig.org.uk/2011/07/glusterfs-a-workhorse-that-needs-to-be-tamed/comment-page-1/#comment-431 sunghost Tue, 24 Jan 2012 12:31:23 +0000 http://sysconfig.ossafe.org/?p=671#comment-431 Thanks for that. I want to use Gluster for my Blu-Ray Disks and planing to install 8x 19" Server with each of 12TB. What i didnt find is a hint of best way to use the max size of all disks. should i run all disks on each server in raid and striped this to gluster. i would lost 1 disk of each server, or should is there a possibility to do that over all server like raid5 or raid6? what happens if one brick lost, or can i add simple one more brick with more than 12tb? need answers thx. Thanks for that. I want to use Gluster for my Blu-Ray Disks and planing to install 8x 19″ Server with each of 12TB. What i didnt find is a hint of best way to use the max size of all disks. should i run all disks on each server in raid and striped this to gluster. i would lost 1 disk of each server, or should is there a possibility to do that over all server like raid5 or raid6? what happens if one brick lost, or can i add simple one more brick with more than 12tb? need answers thx.

]]> Comment on Scientific Linux — an alternative to CentOS? by admin http://sysconfig.org.uk/2011/08/scientific-linux-an-alternative-to-centos/comment-page-1/#comment-411 admin Wed, 16 Nov 2011 18:18:07 +0000 http://sysconfig.org.uk/?p=1071#comment-411 Hi Renato. To be honest I've never heard of that before, but just had a quick look, and it does seem to be another good option. Thanks for the tip, mate! Hi Renato. To be honest I’ve never heard of that before, but just had a quick look, and it does seem to be another good option. Thanks for the tip, mate!

]]> Comment on Scientific Linux — an alternative to CentOS? by Renato http://sysconfig.org.uk/2011/08/scientific-linux-an-alternative-to-centos/comment-page-1/#comment-401 Renato Wed, 16 Nov 2011 17:18:51 +0000 http://sysconfig.org.uk/?p=1071#comment-401 What about PUIAS (http://puias.math.ias.edu/)? They are even faster the Scientific Linux and are backed by very solid institutions. What about PUIAS (http://puias.math.ias.edu/)? They are even faster the Scientific Linux and are backed by very solid institutions.

]]>