We have a large CAT Genset for the the entire facility. And 1.5+ hours run time on most server room equipment. Never thought of, or would have been able to justify, a dedicated genset for the server room. On Dec 26th there was a leak in our shop above a main buss line and it blew. So guess what happens when you have to disconnect a buss line from the main power grid? You can't run the facility genset because the main grid will be energized. If this would have happened a year to the day earlier I would have been in Disney World for my daughters 10th B-day. Everything would have gone down hard and I would not have been answering my phone. No automated shutdown software because "hey we've got a getset". And I'm the only personnel that can quickly get things running again the day before yearly inventory. Now I'm betting I'll get approval for a dedicated genset for the server room. If you think for a bit it's not hard to dream up a plausible perfect storm.
________________________________ From: Glen Johnson [mailto:gjohn...@vhcc.edu] Sent: Tuesday, January 22, 2013 12:15 PM To: NT System Admin Issues Subject: RE: DC's and VM's I can vouch for having a physical dc, dns and dhcp. We lost power last Thursday night, and when it was restored 3 days later, exchange, several file servers and other stuff needed a reboot as they came up before the DC was up. Now, I'm looking for better ups software and a setting to change the servers to not come back on after a power failure. Hopefully it is in the bios. Any recommendations? We use TrippLite UPS's and no backup generator. From: David Lum [mailto:david....@nwea.org] Sent: Tuesday, January 22, 2013 12:30 PM To: NT System Admin Issues Subject: RE: DC's and VM's Hyper-V 2.0 also does this, at least the delay period for each VM. I have DC's always start 120 secs after host start and other VM's 300 secs after that. Server 2012 redundant DHCP...oh NICE! From: Michael B. Smith [mailto:mich...@smithcons.com] Sent: Tuesday, January 22, 2013 8:41 AM To: NT System Admin Issues Subject: RE: DC's and VM's That is correct (you can have redundant DHCP without splitting the pool in Windows Server 2012). Hyper-V 3.0 also allows you to specify critical VMs that must start first, with X delay before starting other VMs, and allow Hyper-V clusters to come online BEFORE AD starts. From: N Parr [mailto:npar...@mortonind.com] Sent: Tuesday, January 22, 2013 11:24 AM To: NT System Admin Issues Subject: RE: DC's and VM's Speaking from experience DHCP is also nice to have on physical. Say you have to power the entire facility down for one reason or another, your hosts all have to start up cold. There is no way you will get your guest running DHCP online before all your devices elsewhere on the network are already up and looking for an address. Then the dumber devices will time out after a while and will have to be power cycled again to get their address. From my understanding 2012 also helps this problem since you can have redundant DHCP servers without splitting the pool? ________________________________ From: Michael B. Smith [mailto:mich...@smithcons.com] Sent: Tuesday, January 22, 2013 10:12 AM To: NT System Admin Issues Subject: RE: DC's and VM's Unless you have a fully Hyper-V 3.0 infrastructure and your DCs are all Windows Server 2012. From: David Lum [mailto:david....@nwea.org] Sent: Tuesday, January 22, 2013 11:06 AM To: NT System Admin Issues Subject: DC's and VM's Is this still current thinking? "Note: Always have at least one DC that is on physical hardware so that failover clusters and other infrastructure can start." http://support.microsoft.com/kb/888794 David Lum Sr. Systems Engineer // NWEATM Office 503.548.5229 // Cell (voice/text) 503.267.9764 ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com<mailto:listmana...@lyris.sunbeltsoftware.com> with the body: unsubscribe ntsysadmin ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com<mailto:listmana...@lyris.sunbeltsoftware.com> with the body: unsubscribe ntsysadmin ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com<mailto:listmana...@lyris.sunbeltsoftware.com> with the body: unsubscribe ntsysadmin ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com<mailto:listmana...@lyris.sunbeltsoftware.com> with the body: unsubscribe ntsysadmin ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com<mailto:listmana...@lyris.sunbeltsoftware.com> with the body: unsubscribe ntsysadmin ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com<mailto:listmana...@lyris.sunbeltsoftware.com> with the body: unsubscribe ntsysadmin ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com with the body: unsubscribe ntsysadmin
