So, if the motherboard in your Exchange server failed, then your Exchange service would still be available to end users?
If you put additional services on that physical host (say, your print service), and the motherboard failed, those services are still available to end-users? My understanding is that this is a "no" OK, so let' say you put Exchange and your File Server on this physical host. You have "xyz" TB of storage. IN the case of catastrophic hardware failure (e.g. RAID controller failure that corrupts your data), you have a NBD hardware replacement warranty agreement, and it will take you 8 hours to restore all the data from tape. Your time-to-restore service (RPO or MTRS) is up to 2 business days. So, you have to ask your business - is this acceptable? If they turn around and say "no way - email and files are our most important services" then you probably need to look at: a) Faster warranty service from your vendor -or- b) Faster way to restore from backup -or- c) Split the service between multiple SPOFs, rather than concentrating on them on a single SPOF Instead, you can co-locate less important services (maybe printing, or DHCP) on the same physical host as the important ones Use business needs to drive technology decisions, so that there aren't unpleasant conversations and/or recriminations when everything goes to cr*p. Cheers Ken From: [email protected] [mailto:[email protected]] On Behalf Of J- P Sent: Thursday, 20 June 2013 1:44 PM To: [email protected] Subject: RE: [NTSysADM] NAS or Server these are not a single physical running all guests 1 Esxi host running 2 guets - Physical Hardware a) guest one win2012 dc b) guest 2 citrix tx 2.windows 2012 dc physical (former DC/File/Print)-- Physical hardware 3. Windows 2012 hyper-V host - Physical hardware a) Windows 2012 guest running exchange 2013 3. Windows 2008 physical member server running sql 2005- physical hardware The DC's are all on separate physical hardware- Jean-Paul Natola ________________________________ From: [email protected]<mailto:[email protected]> To: [email protected]<mailto:[email protected]> Subject: RE: [NTSysADM] NAS or Server Date: Thu, 20 Jun 2013 03:32:49 +0000 You don't know what a single point of failure is? Or you don't understand how a single physical server running multiple services is a single point of failure? Or something else? Cheers Ken From: [email protected]<mailto:[email protected]> [mailto:[email protected]] On Behalf Of J- P Sent: Thursday, 20 June 2013 1:19 PM To: [email protected]<mailto:[email protected]> Subject: RE: [NTSysADM] NAS or Server I'm not following the "single point of failure"
