Re: [qmailtoaster] Qmail on VMWare
Truong Duc Luong wrote: Hi list, Does anyone try to use QMT on VMWare for production use? Doea VM affect the performance of mail server? Please share your experience if using QMT on Vmware. Thanks You should also tell us what kind of vmware version you would use. - QmailToaster hosted by: VR Hosted http://www.vr.org - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [qmailtoaster] Qmail on VMWare
i'm using esx free edition and is working ok (4 months), there are multiple operating sistems on the server (quad core, 8g ram, for qmail I have 2g ram and 2 core, ~600 users) the great advantage is the instant backup. Regards Lucian Jake Vickers wrote: Truong Duc Luong wrote: Hi list, Does anyone try to use QMT on VMWare for production use? Doea VM affect the performance of mail server? Please share your experience if using QMT on Vmware. I have QM under VMWare for download available at http://qmtiso.com (including an installation ISO - links on the main qmailtoaster.org site should be coming shortly) that is ready to go. I have run QMT under VMWare, but for limited production use. As a backup server, or a server that only has 20 users with low traffic it will be okay. Get more than that and I think you can justify the hardware expense anyway. Plus the clock skew is horrendous in VMWare, and for email in the USA to be compliant with legal standards (big concern for me with my clients) you need to be .01 on the time. For the home user or just someone trying/testing things it will be fine though. - QmailToaster hosted by: VR Hosted http://www.vr.org - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [qmailtoaster] Qmail on VMWare
Lucian Cristian wrote: i'm using esx free edition and is working ok (4 months), there are multiple operating sistems on the server (quad core, 8g ram, for qmail I have 2g ram and 2 core, ~600 users) the great advantage is the instant backup. Yeah, I was not running it on Lamborghini hardware. Guess a better question to the poster should be what hardware he's running, and what metrics does he expect on mail load (# of users, # of messages, size of messages, etc.) - QmailToaster hosted by: VR Hosted http://www.vr.org - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [qmailtoaster] Qmail on VMWare
Truong Duc Luong wrote: Hi list, Does anyone try to use QMT on VMWare for production use? Doea VM affect the performance of mail server? Please share your experience if using QMT on Vmware. I have QM under VMWare for download available at http://qmtiso.com (including an installation ISO - links on the main qmailtoaster.org site should be coming shortly) that is ready to go. I have run QMT under VMWare, but for limited production use. As a backup server, or a server that only has 20 users with low traffic it will be okay. Get more than that and I think you can justify the hardware expense anyway. Plus the clock skew is horrendous in VMWare, and for email in the USA to be compliant with legal standards (big concern for me with my clients) you need to be .01 on the time. For the home user or just someone trying/testing things it will be fine though.
RE: [qmailtoaster] Qmail on VMWare
I'm going to install qmt on vmware esxi with hardware: Sunfire X4150 Quadcore 1.6GHz, 8GB RAM. QMT has 4GB RAM and 2 core (expanable) for approx 1000 users. The remain of resources for other services. - With that hardware, should I install qmt on vmware esxi? Should I use this configuration for production use? The advantages of vmware infrastructure are administration and flexible. Other side, someone share the disavantages of the vmware. vmware make a middle layer between hardware and QMT's OS. Does this layer affect the performance, the security of QMT? Thanks -Original Message- From: Jake Vickers [mailto:[EMAIL PROTECTED] Sent: Thursday, November 13, 2008 7:32 PM To: qmailtoaster-list@qmailtoaster.com Subject: Re: [qmailtoaster] Qmail on VMWare Lucian Cristian wrote: i'm using esx free edition and is working ok (4 months), there are multiple operating sistems on the server (quad core, 8g ram, for qmail I have 2g ram and 2 core, ~600 users) the great advantage is the instant backup. Yeah, I was not running it on Lamborghini hardware. Guess a better question to the poster should be what hardware he's running, and what metrics does he expect on mail load (# of users, # of messages, size of messages, etc.) - QmailToaster hosted by: VR Hosted http://www.vr.org - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - QmailToaster hosted by: VR Hosted http://www.vr.org - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [qmailtoaster] Qmail on VMWare
Truong Duc Luong wrote: I'm going to install qmt on vmware esxi with hardware: Sunfire X4150 Quadcore 1.6GHz, 8GB RAM. QMT has 4GB RAM and 2 core (expanable) for approx 1000 users. The remain of resources for other services. - With that hardware, should I install qmt on vmware esxi? Should I use this configuration for production use? The advantages of vmware infrastructure are administration and flexible. Other side, someone share the disavantages of the vmware. vmware make a middle layer between hardware and QMT's OS. Does this layer affect the performance, the security of QMT? Security, no. Performance? Depends on what the other virtual machines will be doing and using. - QmailToaster hosted by: VR Hosted http://www.vr.org - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [qmailtoaster] Qmail on VMWare
Jake Vickers wrote: Truong Duc Luong wrote: I'm going to install qmt on vmware esxi with hardware: Sunfire X4150 Quadcore 1.6GHz, 8GB RAM. QMT has 4GB RAM and 2 core (expanable) for approx 1000 users. The remain of resources for other services. - With that hardware, should I install qmt on vmware esxi? Should I use this configuration for production use? The advantages of vmware infrastructure are administration and flexible. Other side, someone share the disavantages of the vmware. vmware make a middle layer between hardware and QMT's OS. Does this layer affect the performance, the security of QMT? Security, no. Performance? Depends on what the other virtual machines will be doing and using. Given what you've said about the environment, I'd give it a try. Are all users in 1 domain, or multiples? If mulitples, I'd populate qmt gradually and monitor performance. I'm guessing that it'd be fine. FWIW, the biggest penalty of using virtualization is typically disk i/o. I'd keep an eye on i/o in particular. I expect that CPU and RAM are adequate. -- -Eric 'shubes' - QmailToaster hosted by: VR Hosted http://www.vr.org - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [qmailtoaster] Qmail on VMWare
I've been running my QMT on VMWare Server for a couple years now. I have it currently running on a dual core AMD 2.4 with 6G for the host and the QMT gets 1 proc and 2G ram. It runs great and very solid. I use VM for the portability. My hosts (5) all have access to an iSCSI target (also a VM) with drive arrays. The VMs all live on the iSCSI drives. This way, if a host dies, I point another host to the VM files and light it up. All I need to do now is get time to work on some form of QMT clustering. I the FT job I am running a rather large full VM ESX infrastructure farm on 16 HP blades with around 75 running guests. Phil -Original message- From: Jake Vickers [EMAIL PROTECTED] Date: Thu, 13 Nov 2008 13:40:31 -0500 To: qmailtoaster-list@qmailtoaster.com Subject: Re: [qmailtoaster] Qmail on VMWare Truong Duc Luong wrote: I'm going to install qmt on vmware esxi with hardware: Sunfire X4150 Quadcore 1.6GHz, 8GB RAM. QMT has 4GB RAM and 2 core (expanable) for approx 1000 users. The remain of resources for other services. - With that hardware, should I install qmt on vmware esxi? Should I use this configuration for production use? The advantages of vmware infrastructure are administration and flexible. Other side, someone share the disavantages of the vmware. vmware make a middle layer between hardware and QMT's OS. Does this layer affect the performance, the security of QMT? Security, no. Performance? Depends on what the other virtual machines will be doing and using. - QmailToaster hosted by: VR Hosted http://www.vr.org - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - QmailToaster hosted by: VR Hosted http://www.vr.org - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: [qmailtoaster] Qmail on VMWare
I'm also hosting my QMT on VMware ESX 3.5 using iSCSI disks and love it. I'm running about 20 Virtual servers on 2 hosts - each has 2 Quad Core Xeon CPUs and 24GB of DDR2. If 1 host dies I can run all VMs on a single host. Easy to backup/snapshot/etc. You could definitely do it on ESXi if you have solid hardware. -Chris -Original Message- From: Phil Leinhauser [mailto:[EMAIL PROTECTED] Sent: Thursday, November 13, 2008 10:48 AM To: qmailtoaster-list@qmailtoaster.com Subject: Re: [qmailtoaster] Qmail on VMWare I've been running my QMT on VMWare Server for a couple years now. I have it currently running on a dual core AMD 2.4 with 6G for the host and the QMT gets 1 proc and 2G ram. It runs great and very solid. I use VM for the portability. My hosts (5) all have access to an iSCSI target (also a VM) with drive arrays. The VMs all live on the iSCSI drives. This way, if a host dies, I point another host to the VM files and light it up. All I need to do now is get time to work on some form of QMT clustering. I the FT job I am running a rather large full VM ESX infrastructure farm on 16 HP blades with around 75 running guests. Phil -Original message- From: Jake Vickers [EMAIL PROTECTED] Date: Thu, 13 Nov 2008 13:40:31 -0500 To: qmailtoaster-list@qmailtoaster.com Subject: Re: [qmailtoaster] Qmail on VMWare Truong Duc Luong wrote: I'm going to install qmt on vmware esxi with hardware: Sunfire X4150 Quadcore 1.6GHz, 8GB RAM. QMT has 4GB RAM and 2 core (expanable) for approx 1000 users. The remain of resources for other services. - With that hardware, should I install qmt on vmware esxi? Should I use this configuration for production use? The advantages of vmware infrastructure are administration and flexible. Other side, someone share the disavantages of the vmware. vmware make a middle layer between hardware and QMT's OS. Does this layer affect the performance, the security of QMT? Security, no. Performance? Depends on what the other virtual machines will be doing and using. - QmailToaster hosted by: VR Hosted http://www.vr.org - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - QmailToaster hosted by: VR Hosted http://www.vr.org - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - QmailToaster hosted by: VR Hosted http://www.vr.org - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: [qmailtoaster] Qmail on VMWare
The hardware will most certainly be the challenge for ESXi. Because ESX is the base OS, you're at the mercy of the drivers it knows about. If you don't have a supported NIC or drive type, the ESX install will halt and not go any further. There are tricks to getting around it but it's not for the timid. VM Server lays on top of either Windows or Linux so the drivers are handled there. My hosts are all Centos. I have gone the route of Windows hosts but there is too much overhead so I swapped to Linux. -Original message- From: Chris Hillman [EMAIL PROTECTED] Date: Thu, 13 Nov 2008 15:35:58 -0500 To: qmailtoaster-list@qmailtoaster.com Subject: RE: [qmailtoaster] Qmail on VMWare I'm also hosting my QMT on VMware ESX 3.5 using iSCSI disks and love it. I'm running about 20 Virtual servers on 2 hosts - each has 2 Quad Core Xeon CPUs and 24GB of DDR2. If 1 host dies I can run all VMs on a single host. Easy to backup/snapshot/etc. You could definitely do it on ESXi if you have solid hardware. -Chris -Original Message- From: Phil Leinhauser [mailto:[EMAIL PROTECTED] Sent: Thursday, November 13, 2008 10:48 AM To: qmailtoaster-list@qmailtoaster.com Subject: Re: [qmailtoaster] Qmail on VMWare I've been running my QMT on VMWare Server for a couple years now. I have it currently running on a dual core AMD 2.4 with 6G for the host and the QMT gets 1 proc and 2G ram. It runs great and very solid. I use VM for the portability. My hosts (5) all have access to an iSCSI target (also a VM) with drive arrays. The VMs all live on the iSCSI drives. This way, if a host dies, I point another host to the VM files and light it up. All I need to do now is get time to work on some form of QMT clustering. I the FT job I am running a rather large full VM ESX infrastructure farm on 16 HP blades with around 75 running guests. Phil -Original message- From: Jake Vickers [EMAIL PROTECTED] Date: Thu, 13 Nov 2008 13:40:31 -0500 To: qmailtoaster-list@qmailtoaster.com Subject: Re: [qmailtoaster] Qmail on VMWare Truong Duc Luong wrote: I'm going to install qmt on vmware esxi with hardware: Sunfire X4150 Quadcore 1.6GHz, 8GB RAM. QMT has 4GB RAM and 2 core (expanable) for approx 1000 users. The remain of resources for other services. - With that hardware, should I install qmt on vmware esxi? Should I use this configuration for production use? The advantages of vmware infrastructure are administration and flexible. Other side, someone share the disavantages of the vmware. vmware make a middle layer between hardware and QMT's OS. Does this layer affect the performance, the security of QMT? Security, no. Performance? Depends on what the other virtual machines will be doing and using. - QmailToaster hosted by: VR Hosted http://www.vr.org - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - QmailToaster hosted by: VR Hosted http://www.vr.org - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - QmailToaster hosted by: VR Hosted http://www.vr.org - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - QmailToaster hosted by: VR Hosted http://www.vr.org - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
[qmailtoaster] Qmail on VMWare
Hi list, Does anyone try to use QMT on VMWare for production use? Doea VM affect the performance of mail server? Please share your experience if using QMT on Vmware. Thanks
