jwcolby
jwcolby at colbyconsulting.com
Thu Oct 25 11:24:18 CDT 2007
I just bought three 1500 VA 900 W units. I did actual tests and got around 14 minutes providing voltage for a server with 8 hard disks, dual proc, 4 gigs of ram. Just the server, no monitor. I provided each of two servers their own UPS and then put the monitor on its own UPS. The monitor is on a KVM switch. With that setup I can handle most stuff. I actually bought an auto-start propane powered backup generator which powers my office as well as much of the rest of the house so I probably could have gotten by with smaller UPS' but why risk it? According to statistics most outages are for only a few seconds but of those that last more than that most are for only a few minutes. 14 minutes is enough to finish most tasks, but my servers run SQL Server and I can tell you from experience that they do not like to lose power in the middle of write operations. I managed to get the database back when it happened but I had to go find out about (built in to SQL Server) recovery operations on the data file. Scary stuff. John W. Colby Colby Consulting www.ColbyConsulting.com -----Original Message----- From: dba-tech-bounces at databaseadvisors.com [mailto:dba-tech-bounces at databaseadvisors.com] On Behalf Of Rusty Hammond Sent: Thursday, October 25, 2007 12:03 PM To: Discussion of Hardware and Software issues Subject: Re: [dba-Tech] Corrupted Word file Just to add to the UPS discussion. I've come across the Belkin UPS's at Buy.com (search for Belkin UPS at buy.com's website). I just paid $145 for a 1500va UPS. This is the second one I've purchased and both have been for small business servers. The first one I setup has been put to good use several times in the last year as the power where it is installed is down quite a bit. From the reviews I've read about them, the length of time they will provide power at full load is exaggerated but for the price they can protect a good amount of equipment long enough to shut it down gracefully. It even comes with a serial and usb cable to connect to your computer and a $30 mail-in rebate. ----- Original Message ---- From: John Bartow <john at winhaven.net> To: Discussion of Hardware and Software issues <dba-tech at databaseadvisors.com> Sent: Thursday, October 25, 2007 10:09:14 AM Subject: Re: [dba-Tech] Corrupted Word file About 8 years ago I lost 1/2 hours worth of work on a PowerPoint right before I had to leave for a presentation. I've never had a power related file problem again - because I went out and bought a UPS ;-) -----Original Message----- From: dba-tech-bounces at databaseadvisors.com [mailto:dba-tech-bounces at databaseadvisors.com] On Behalf Of Susan Harkins =====Circuit breaker flipped. :( I have the text, so I'll just start reformatting it. The file was saved, but it was open at the time. _______________________________________________ dba-Tech mailing list dba-Tech at databaseadvisors.com http://databaseadvisors.com/mailman/listinfo/dba-tech Website: http://www.databaseadvisors.com __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ dba-Tech mailing list dba-Tech at databaseadvisors.com http://databaseadvisors.com/mailman/listinfo/dba-tech Website: http://www.databaseadvisors.com