It's a bit strange that no IBM people have leapt to the defence of the triggers in Universe and explained what we're doing wrong.
I really do suspect we must be doing something wrong to get such poor performance, but I've tried it on Windows, Solaris and RedHat (3 separate servers) with the same results so I doubt it is something to do with the config of the servers. Besides I first saw this on our production server which has 8x2.8ghz Xeons, 8gb memory and two Raid 0+1 arrays with 2gb cache and 15k rpm disks. I ran my tests on that beast as the only user...... As I say I really hope it's me (and others) doing something very wrong but I haven't the foggiest what it is! -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Reid Sent: 08 September 2004 17:01 To: '[EMAIL PROTECTED]' Subject: RE: [U2] Anyone have experience "mirroring" a HDD over a WAN I'm truly dismayed that this triggering business is giving me sorta fast results, when others have seen a significant slowdown. We constantly strive for productivity slowdowns, and what do we get but something that seems to work OK. I will be opening a ticket with blue to get to the bottom of this computing travesty. Meanwhile, I wish I knew all the stuff that drives the configuration of this beast (or these beasts, in our case). I did a short stint as a unidata admin a long while back, but we app types are pretty much separated from the admin folks... separation of duties and such. If there is an easy way to get the info on the configuration and if it doesn't call privacy issues into play, I wouldn't mind at least asking them to part with the info in order to pass it on to the bunch for the greater good or bad. We have a backup machine ( a query only in case of downtime on the main ) and it is consistently unloaded. The tests that I did were on a development machine, that has varying load levels, so its concievable that my results were tainted, although I ran them three or four times. This could have given the illusion of results being clouded by some type of "smoke". john -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Adrian Matthews Sent: Tuesday, September 07, 2004 2:56 AM To: [EMAIL PROTECTED] Subject: RE: [U2] Anyone have experience "mirroring" a HDD over a WAN The file is only opened once so that's not the problem and for production programs we always cache file variables anyway. Interestingly I tried it on Solaris and RedHat as well with exactly the same results. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Alfke, Colin Sent: 06 September 2004 22:53 To: [EMAIL PROTECTED] Subject: RE: [U2] Anyone have experience "mirroring" a HDD over a WAN Make sure the file variable that you're writing to with the trigger is stored in common. With UniData it makes a HUGE difference if it doesn't have to keep opening the file each time the trigger is called. Colin Alfke Calgary, Alberta -----Original Message----- From: Dennis Bartlett [mailto:[EMAIL PROTECTED] Sent: Mon 06/09/2004 8:52 AM To: [EMAIL PROTECTED] Cc: Subject: RE: [U2] Anyone have experience "mirroring" a HDD over a WAN Ok, so something has to be different... we still think you're smoking something... my ratio is somewhere around 1 to 10 your ratio is 1 to 1.15 with your ratio I'd happily embrace triggers. Please post (possibly privately?) your uvconfig file, what the specs of your machine are (ie no of cpus, memory, whether your files are stored in RAM...) [demime 1.01d removed an attachment of type application/ms-tnef which had a name of winmail.dat] ------- u2-users mailing list [EMAIL PROTECTED] To unsubscribe please visit http://listserver.u2ug.org/ The information contained in this email is strictly confidential and for the use of the addressee only, unless otherwise indicated. 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