Re: [qmailtoaster] QMT on Xen? (I hope not)
Eric, I am running QMT on Xen (CentOS 5.5) Not sure about RHEL6 Rgds Alex On 05/08/2010 00:40, Eric Shubert wrote: Is anyone running QMT on Xen? I just noticed that RHEL6 will not contain Xen, in favor of KVM. - Qmailtoaster is sponsored by Vickers Consulting Group (www.vickersconsulting.com) Vickers Consulting Group offers Qmailtoaster support and installations. If you need professional help with your setup, contact them today! - Please visit qmailtoaster.com for the latest news, updates, and packages. To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com For additional commands, e-mail: qmailtoaster-list-h...@qmailtoaster.com
[qmailtoaster] Re: QMT on Xen? (I hope not)
Bharath Chari wrote: On Thursday 05 August 2010 05:51 AM, Michael Colvin wrote: VMWare's working great, just looking for something a little more budget friendly. :-) OpenVZ is definitely budget friendly :-). And works like a charm for me. Bharath - If you'd care to share your experience with OpenVZ, there's a page on the wiki for it just waiting to be written: http://wiki.qmailtoaster.com/index.php?title=OpenVZaction=edit Writing on the wiki is really pretty easy. ;) -- -Eric 'shubes' - Qmailtoaster is sponsored by Vickers Consulting Group (www.vickersconsulting.com) Vickers Consulting Group offers Qmailtoaster support and installations. If you need professional help with your setup, contact them today! - Please visit qmailtoaster.com for the latest news, updates, and packages. To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com For additional commands, e-mail: qmailtoaster-list-h...@qmailtoaster.com
[qmailtoaster] Re: QMT on Xen? (I hope not)
Lucian Cristian wrote: ~11 virtual machines (linux/windows) on 2x quad opteron (2.4ghz), 16 gb ram, I think i's been a year since I migrated from ESXi (and ~ one year with ESXi), centos 5.5 with updated kernel and libvirt, no qemu-kvm upgrade because on my system the standard from centos is faster From ESXi to what? VMware Server or Xen? Would you please explain how libvirt comes into play? I haven't heard of it. Care to share your kernel updates? I'm just using the stock kernel, but with a few settings changed per the wiki. I expect that could be improved. TIA, Lucian. -- -Eric 'shubes' - Qmailtoaster is sponsored by Vickers Consulting Group (www.vickersconsulting.com) Vickers Consulting Group offers Qmailtoaster support and installations. If you need professional help with your setup, contact them today! - Please visit qmailtoaster.com for the latest news, updates, and packages. To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com For additional commands, e-mail: qmailtoaster-list-h...@qmailtoaster.com
[qmailtoaster] Re: QMT on Xen? (I hope not)
Alex, I only know what I've read. http://go.techtarget.com/r/12145227/6005177 Looks to me like Xen is on its way out. -- -Eric 'shubes' Postmaster wrote: Eric, I am running QMT on Xen (CentOS 5.5) Not sure about RHEL6 Rgds Alex On 05/08/2010 00:40, Eric Shubert wrote: Is anyone running QMT on Xen? I just noticed that RHEL6 will not contain Xen, in favor of KVM. - - Qmailtoaster is sponsored by Vickers Consulting Group (www.vickersconsulting.com) Vickers Consulting Group offers Qmailtoaster support and installations. If you need professional help with your setup, contact them today! - Please visit qmailtoaster.com for the latest news, updates, and packages. To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com For additional commands, e-mail: qmailtoaster-list-h...@qmailtoaster.com
[qmailtoaster] Re: QMT on Xen? (I hope not)
Patrick Ring wrote: I've heard ESXi 4 fixes some of those issues. (Must have 64bit hardware though) I run some low-end services from the ESXi 3.5 hosts, but not much since there isn't much available support for doing so. I do find my performance is better on ESXi than it was on VMWare Server. But, I'm running on older Proliant DL360/380 G3 servers (dual xeon 2.8) I would expect ESXi performance to be better than Server out of the box. I wonder how much better though after tuning Server and the kernel a bit. ESXi 3.5 is very picky about hardware Especially hard disk controllers and RAID devices. Speaking of raid, I'm partial to software raid-1. Do you know if ESXi supports software raid or not? -Patrick Ring -- Sent from my BlackBerry Wireless Device -- -Eric 'shubes' - Qmailtoaster is sponsored by Vickers Consulting Group (www.vickersconsulting.com) Vickers Consulting Group offers Qmailtoaster support and installations. If you need professional help with your setup, contact them today! - Please visit qmailtoaster.com for the latest news, updates, and packages. To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com For additional commands, e-mail: qmailtoaster-list-h...@qmailtoaster.com
Re: [qmailtoaster] Re: QMT on Xen? (I hope not)
Eric Shubert wrote: Lucian Cristian wrote: ~11 virtual machines (linux/windows) on 2x quad opteron (2.4ghz), 16 gb ram, I think i's been a year since I migrated from ESXi (and ~ one year with ESXi), centos 5.5 with updated kernel and libvirt, no qemu-kvm upgrade because on my system the standard from centos is faster From ESXi to what? VMware Server or Xen? Would you please explain how libvirt comes into play? I haven't heard of it. Care to share your kernel updates? I'm just using the stock kernel, but with a few settings changed per the wiki. I expect that could be improved. TIA, Lucian. from ESXi to qemu-kvm (there are some howto's but I used clone over network, for windows is a bit tricky resetting the ide controller) , the new server raid interface was not ok for vmware so I had to use the real deal :D, I didn't like esxi because of limited access to host machine and one time I lost all virtual machines (I don't know what was the problem), now backup of images is easy and live migration too, remote manageability is not so cool like vmware but there is a new network protocol (SPICE) hopefully it will be released with fedora 14 and made stable soon I had some errors related to virtualisation on dmesg and some machine lockup , but after 2.6.32 the errors where gone (opteron supermicro server, on intel ibm and fujitsu all was ok with stock), now I'm on vanilla 2.6.34, and maybe I'll switch to 2.6.35 (on production, fingers crossed :d), the new kernel and qemu can share memory pages so you can have less memory used by machines, but is harder to get it compile on centos 5.x now I have one server clean and maybe I'll try a fedora to see the performance of the new qemu-kvm and kernel and maybe I'll backport it to centos if it's worth the trouble regards Lucian __ Information from ESET NOD32 Antivirus, version of virus signature database 5344 (20100805) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com - Qmailtoaster is sponsored by Vickers Consulting Group (www.vickersconsulting.com) Vickers Consulting Group offers Qmailtoaster support and installations. If you need professional help with your setup, contact them today! - Please visit qmailtoaster.com for the latest news, updates, and packages. To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com For additional commands, e-mail: qmailtoaster-list-h...@qmailtoaster.com
[qmailtoaster] Re: QMT on Xen? (I hope not)
Lucian Cristian wrote: from ESXi to qemu-kvm (there are some howto's but I used clone over network, for windows is a bit tricky resetting the ide controller) , the new server raid interface was not ok for vmware so I had to use the real deal :D, I didn't like esxi because of limited access to host machine and one time I lost all virtual machines (I don't know what was the problem), now backup of images is easy and live migration too, remote manageability is not so cool like vmware but there is a new network protocol (SPICE) hopefully it will be released with fedora 14 and made stable soon I had some errors related to virtualisation on dmesg and some machine lockup , but after 2.6.32 the errors where gone (opteron supermicro server, on intel ibm and fujitsu all was ok with stock), now I'm on vanilla 2.6.34, and maybe I'll switch to 2.6.35 (on production, fingers crossed :d), the new kernel and qemu can share memory pages so you can have less memory used by machines, but is harder to get it compile on centos 5.x now I have one server clean and maybe I'll try a fedora to see the performance of the new qemu-kvm and kernel and maybe I'll backport it to centos if it's worth the trouble regards Lucian Thanks for sharing, Lucian. I see you're on the bleeding edge. Personally, I like lagging behind a bit sometimes. As I think I already mentioned, I'll probably try out KVM on COS6 after it's been out for a little while. One more question. Can you explain to us the difference between qemu-kvm and the KVM that will be coming out with CentOS 6? Oh, and there's just a tiny bit (so far) about KVM on the wiki (http://wiki.qmailtoaster.com/index.php/KVM). It'd be great if you could add some content there if/when you get a chance. If you'd like an idea of how you might organize the page, see the one on VMware. You could do something entirely different if you like though. Thanks again. -- -Eric 'shubes' - Qmailtoaster is sponsored by Vickers Consulting Group (www.vickersconsulting.com) Vickers Consulting Group offers Qmailtoaster support and installations. If you need professional help with your setup, contact them today! - Please visit qmailtoaster.com for the latest news, updates, and packages. To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com For additional commands, e-mail: qmailtoaster-list-h...@qmailtoaster.com
RE: [qmailtoaster] Re: QMT on Xen? (I hope not)
-Original Message- From: Eric Shubert [mailto:e...@shubes.net] Sent: Thursday, August 05, 2010 11:06 AM To: qmailtoaster-list@qmailtoaster.com Subject: [qmailtoaster] Re: QMT on Xen? (I hope not) Patrick Ring wrote: I've heard ESXi 4 fixes some of those issues. (Must have 64bit hardware though) I run some low-end services from the ESXi 3.5 hosts, but not much since there isn't much available support for doing so. I do find my performance is better on ESXi than it was on VMWare Server. But, I'm running on older Proliant DL360/380 G3 servers (dual xeon 2.8) I would expect ESXi performance to be better than Server out of the box. I wonder how much better though after tuning Server and the kernel a bit. ESXi 3.5 is very picky about hardware Especially hard disk controllers and RAID devices. Speaking of raid, I'm partial to software raid-1. Do you know if ESXi supports software raid or not? *P.R.* It would be dependant upon the controller. So far I've found that ESXi (especially 3.5) wants almost nothing but RAID controllers (hardware-bound not fake). ESXi 4 is supposed to be a bit more lenient since there is a big shift on the entry-level servers to SATA, however, if the machine is not 64bit native, it won't install. *P.R.* With that in mind, I don't think a software RAID-1 would work since ESXi would have to configure it from the start. I'll have to see what happens when I put a controller into JBOD mode. -Patrick Ring -Patrick Ring -- Sent from my BlackBerry Wireless Device -- -Eric 'shubes' - Qmailtoaster is sponsored by Vickers Consulting Group (www.vickersconsulting.com) Vickers Consulting Group offers Qmailtoaster support and installations. If you need professional help with your setup, contact them today! - Please visit qmailtoaster.com for the latest news, updates, and packages. To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com For additional commands, e-mail: qmailtoaster-list-h...@qmailtoaster.com - Qmailtoaster is sponsored by Vickers Consulting Group (www.vickersconsulting.com) Vickers Consulting Group offers Qmailtoaster support and installations. If you need professional help with your setup, contact them today! - Please visit qmailtoaster.com for the latest news, updates, and packages. To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com For additional commands, e-mail: qmailtoaster-list-h...@qmailtoaster.com
Re: [qmailtoaster] Re: QMT on Xen? (I hope not)
Eric Shubert wrote: Lucian Cristian wrote: from ESXi to qemu-kvm (there are some howto's but I used clone over network, for windows is a bit tricky resetting the ide controller) , the new server raid interface was not ok for vmware so I had to use the real deal :D, I didn't like esxi because of limited access to host machine and one time I lost all virtual machines (I don't know what was the problem), now backup of images is easy and live migration too, remote manageability is not so cool like vmware but there is a new network protocol (SPICE) hopefully it will be released with fedora 14 and made stable soon I had some errors related to virtualisation on dmesg and some machine lockup , but after 2.6.32 the errors where gone (opteron supermicro server, on intel ibm and fujitsu all was ok with stock), now I'm on vanilla 2.6.34, and maybe I'll switch to 2.6.35 (on production, fingers crossed :d), the new kernel and qemu can share memory pages so you can have less memory used by machines, but is harder to get it compile on centos 5.x now I have one server clean and maybe I'll try a fedora to see the performance of the new qemu-kvm and kernel and maybe I'll backport it to centos if it's worth the trouble regards Lucian Thanks for sharing, Lucian. I see you're on the bleeding edge. Personally, I like lagging behind a bit sometimes. As I think I already mentioned, I'll probably try out KVM on COS6 after it's been out for a little while. One more question. Can you explain to us the difference between qemu-kvm and the KVM that will be coming out with CentOS 6? Oh, and there's just a tiny bit (so far) about KVM on the wiki (http://wiki.qmailtoaster.com/index.php/KVM). It'd be great if you could add some content there if/when you get a chance. If you'd like an idea of how you might organize the page, see the one on VMware. You could do something entirely different if you like though. Thanks again. Having spent ~10.000 Eur on one server that I couldn't use with virtualisation made me bee on bleeding edge (regarding to standard centos kernel an machine locking) and most important I can afford to have a bit of down time, usually I'm testing on weekend (when I have the time). Kvm is the kernel module and qemu-kvm is the qemu that can use the kvm kernel module :) because there is qemu that is not accelerated by those modules, libvirt in conjunction with new virt-manager can give you new options/flexibility (I'm still waiting for timed auto startup of virtual machines, like the one in vmware). There is a lot of information in the changelog of those packages. hopefully I'll have time to look into the wiki and share with others.. regards Lucian __ Information from ESET NOD32 Antivirus, version of virus signature database 5344 (20100805) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com - Qmailtoaster is sponsored by Vickers Consulting Group (www.vickersconsulting.com) Vickers Consulting Group offers Qmailtoaster support and installations. If you need professional help with your setup, contact them today! - Please visit qmailtoaster.com for the latest news, updates, and packages. To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com For additional commands, e-mail: qmailtoaster-list-h...@qmailtoaster.com
Re: [qmailtoaster] QMT on Xen? (I hope not)
On 08/04/2010 07:40 PM, Eric Shubert wrote: Is anyone running QMT on Xen? I just noticed that RHEL6 will not contain Xen, in favor of KVM. I've run it on VMware Server (1.x and 2.x) for development, and recently I installed it under Virtualbox on my laptop so I can work on the packages while away from the office. - Qmailtoaster is sponsored by Vickers Consulting Group (www.vickersconsulting.com) Vickers Consulting Group offers Qmailtoaster support and installations. If you need professional help with your setup, contact them today! - Please visit qmailtoaster.com for the latest news, updates, and packages. To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com For additional commands, e-mail: qmailtoaster-list-h...@qmailtoaster.com
Re: [qmailtoaster] Re: QMT on Xen? (I hope not)
Patrick Ring wrote: -Original Message- From: Eric Shubert [mailto:e...@shubes.net] Sent: Thursday, August 05, 2010 11:06 AM To: qmailtoaster-list@qmailtoaster.com Subject: [qmailtoaster] Re: QMT on Xen? (I hope not) Patrick Ring wrote: I've heard ESXi 4 fixes some of those issues. (Must have 64bit hardware though) I run some low-end services from the ESXi 3.5 hosts, but not much since there isn't much available support for doing so. I do find my performance is better on ESXi than it was on VMWare Server. But, I'm running on older Proliant DL360/380 G3 servers (dual xeon 2.8) I would expect ESXi performance to be better than Server out of the box. I wonder how much better though after tuning Server and the kernel a bit. ESXi 3.5 is very picky about hardware Especially hard disk controllers and RAID devices. Speaking of raid, I'm partial to software raid-1. Do you know if ESXi supports software raid or not? *P.R.* It would be dependant upon the controller. So far I've found that ESXi (especially 3.5) wants almost nothing but RAID controllers (hardware-bound not fake). ESXi 4 is supposed to be a bit more lenient since there is a big shift on the entry-level servers to SATA, however, if the machine is not 64bit native, it won't install. *P.R.* With that in mind, I don't think a software RAID-1 would work since ESXi would have to configure it from the start. I'll have to see what happens when I put a controller into JBOD mode. -Patrick Ring -Patrick Ring -- Sent from my BlackBerry Wireless Device -- -Eric 'shubes' - Qmailtoaster is sponsored by Vickers Consulting Group (www.vickersconsulting.com) Vickers Consulting Group offers Qmailtoaster support and installations. If you need professional help with your setup, contact them today! - Please visit qmailtoaster.com for the latest news, updates, and packages. To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com For additional commands, e-mail: qmailtoaster-list-h...@qmailtoaster.com - Qmailtoaster is sponsored by Vickers Consulting Group (www.vickersconsulting.com) Vickers Consulting Group offers Qmailtoaster support and installations. If you need professional help with your setup, contact them today! - Please visit qmailtoaster.com for the latest news, updates, and packages. To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com For additional commands, e-mail: qmailtoaster-list-h...@qmailtoaster.com __ Information from ESET NOD32 Antivirus, version of virus signature database 5344 (20100805) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com There are some problems with network adapters too, not all of them are supported, but usually servers are coming with the supported adapter, but I had some trouble getting an quad port adapter for one of my server in v3.5i times. Soft raid (not linux soft raid) is supported if there is a driver module available on vmware site (there is a compatibility matrix available) Regards Lucian __ Information from ESET NOD32 Antivirus, version of virus signature database 5344 (20100805) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com - Qmailtoaster is sponsored by Vickers Consulting Group (www.vickersconsulting.com) Vickers Consulting Group offers Qmailtoaster support and installations. If you need professional help with your setup, contact them today! - Please visit qmailtoaster.com for the latest news, updates, and packages. To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com For additional commands, e-mail: qmailtoaster-list-h...@qmailtoaster.com
Re: [qmailtoaster] Re: QMT on Xen? (I hope not)
I used to have qmail (not QMT) under OpenVZ and now I have had it under XEN on the Linode for several years (www.linode.com). I have both 32bit and 64bit version running very smoothly. I tried running QMT under VMware and all seems to be good, but I have not tested it extensively (VMware was running on my Macbook). Regards Alex On 05/08/2010 17:09, Eric Shubert wrote: Alex, I only know what I've read. http://go.techtarget.com/r/12145227/6005177 Looks to me like Xen is on its way out. - Qmailtoaster is sponsored by Vickers Consulting Group (www.vickersconsulting.com) Vickers Consulting Group offers Qmailtoaster support and installations. If you need professional help with your setup, contact them today! - Please visit qmailtoaster.com for the latest news, updates, and packages. To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com For additional commands, e-mail: qmailtoaster-list-h...@qmailtoaster.com
[qmailtoaster] Re: QMT on Xen? (I hope not)
Jake Vickers wrote: On 08/04/2010 07:40 PM, Eric Shubert wrote: Is anyone running QMT on Xen? I just noticed that RHEL6 will not contain Xen, in favor of KVM. I've run it on VMware Server (1.x and 2.x) for development, and recently I installed it under Virtualbox on my laptop so I can work on the packages while away from the office. - Nice. For the record (in case anyone's interested), I've run production QMT hosts on VMware Server 1.x in the past, but now all have been upgraded to Server 2.x. All of my QMT test/devel hosts (32 and 64 bit) are VMs running under Server 2.x. -- -Eric 'shubes' - Qmailtoaster is sponsored by Vickers Consulting Group (www.vickersconsulting.com) Vickers Consulting Group offers Qmailtoaster support and installations. If you need professional help with your setup, contact them today! - Please visit qmailtoaster.com for the latest news, updates, and packages. To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com For additional commands, e-mail: qmailtoaster-list-h...@qmailtoaster.com
