How I envy you guys talking like these. :) I wish Baguio would stabilize itself in terms of supplying electricity more reliably. My UPSes get discharged nevertheless because of frequent day-long brown-outs. *lol* talking (or listening ) about high availability make me drool. :) CHeers!
Mhac On Thu, 18 Nov 2004 16:01:35 +0800, Rafael 'Dido' Sevilla <[EMAIL PROTECTED]> wrote: > On Thu, Nov 18, 2004 at 02:01:19PM +0800, Ariz C. Jacinto wrote: > > UPS monitoring and management was a nightmare for us when > > using the configuration you've mentioned especially when the > > old machines only have a single PS (not redundant) wherein > > a secondary UPS would only act as a "genset-for-a-minute". > > > > Such machines with only a single power supply should not be used for > serious high-availability enterprise computing. In my experience, power > supplies are the most susceptible of all single points of failure in any > computer. I have many more incidents than I care to remember where a > machine that would otherwise have been up for a very long time had its > record cut short by a failed power supply. Most good enterprise > machines I have seen have got at least two such redundant power > supplies, many have three or even four. > > > off-site is still best option for achieving HA since an enterprise > > shouldn't only tackle HA but BC (business continuity) as well > > if they were to comply with ISO & BS7799 stds. > > Off-site is also fairly complicated and expensive to set up if you want > to use it for high availability. It is much simpler to use an off-site > backup as a standby site that is able to recover the functions of a > failed primary site with operator intervention. > > > > -- > dido > We pledge allegiance to the Penguin, and to the software for which it stands. > One nation, under Linux, with Free software and unlimited bandwidth for all. > http://stormwyrm.blogspot.com/ > -- > Philippine Linux Users' Group (PLUG) Mailing List > [EMAIL PROTECTED] (#PLUG @ irc.free.net.ph) > Official Website: http://plug.linux.org.ph > Searchable Archives: http://marc.free.net.ph > . > To leave, go to http://lists.q-linux.com/mailman/listinfo/plug > . > Are you a Linux newbie? To join the newbie list, go to > http://lists.q-linux.com/mailman/listinfo/ph-linux-newbie > -- Philippine Linux Users' Group (PLUG) Mailing List [EMAIL PROTECTED] (#PLUG @ irc.free.net.ph) Official Website: http://plug.linux.org.ph Searchable Archives: http://marc.free.net.ph . To leave, go to http://lists.q-linux.com/mailman/listinfo/plug . Are you a Linux newbie? To join the newbie list, go to http://lists.q-linux.com/mailman/listinfo/ph-linux-newbie
