Speaking as someone with arrows in his back over this type of thing, if the app can run under the 64-bit version of Windows (the app doesn't need to be 64-bit, it only needs to be able to run on a 64-bit OS), you can load up that machine with gigs of memory and your life will become more sane. Journaling is still the way to go, but at least the backup wont roll over and die from memory depletion every month when the journal becomes invalidated after MS patches/reboots. -steve s
-----Original Message----- From: ADSM: Dist Stor Manager [mailto:ads...@vm.marist.edu] On Behalf Of Prather, Wanda Sent: Thursday, May 27, 2010 1:30 PM To: ADSM-L@VM.MARIST.EDU Subject: Re: [ADSM-L] why create a 12TB LUN I've got a customer with multiple Windows servers having multiple LUNS with over 30M files, one is over 75M. (and of course, the developers claim there is no way to modify the architecture...) Journaling is the ONLY way we can back them up. (And yes, I've told them they can't restore the puppies in anything close to a reasonable time period...) Journaling relies on a Windows facility to monitors file system changes. If the files change too fast for the monitor, or the change rate is above 10% per day, that's when journaling is NOT recommended. W -----Original Message----- From: ADSM: Dist Stor Manager [mailto:ads...@vm.marist.edu] On Behalf Of Kelly Lipp Sent: Thursday, May 27, 2010 1:00 PM To: ADSM-L@VM.MARIST.EDU Subject: Re: [ADSM-L] why create a 12TB LUN Hmmm. I don't know about that. I thought that's what journaling was for! Now, I suppose if you have a lot of files and a lot of them changing you could have a problem. But I'm guessing this beast won't have that many changes... Kelly Lipp Chief Technology Officer www.storserver.com 719-266-8777 x7105 STORServer solves your data backup challenges. Once and for all. -----Original Message----- From: ADSM: Dist Stor Manager [mailto:ads...@vm.marist.edu] On Behalf Of Fred Johanson Sent: Wednesday, May 26, 2010 7:44 PM To: ADSM-L@VM.MARIST.EDU Subject: Re: [ADSM-L] why create a 12TB LUN Kelly, Once upon a time, or midnight dreary, journaling was not recommended for filespaces with lots of files. Has this changed? ________________________________________ From: ADSM: Dist Stor Manager [ads...@vm.marist.edu] On Behalf Of Kelly Lipp [l...@storserver.com] Sent: Wednesday, May 26, 2010 8:06 PM To: ADSM-L@vm.marist.edu Subject: Re: [ADSM-L] why create a 12TB LUN Geoff, As you well know, it isn't the 12TB that's the problem: it's the 40M files they're going to put on it! Actually, I think TSM is the only thing that will be able to backup such a thing. Incremental forever is the only way. Put Journaling on and it gets done. Now, that's backup. Forget restoring it! That won't happen in any reasonable amount of time now will it? Kelly Lipp Chief Technology Officer www.storserver.com 719-266-8777 x7105 STORServer solves your data backup challenges. Once and for all. -----Original Message----- From: ADSM: Dist Stor Manager [mailto:ads...@vm.marist.edu] On Behalf Of Gill, Geoffrey L. Sent: Wednesday, May 26, 2010 5:04 PM To: ADSM-L@VM.MARIST.EDU Subject: [ADSM-L] why create a 12TB LUN I'm guessing many of you will find this quite odd, I know I did, but I had someone come to me and say they were going to ask for a 12TB LUN and wanted to back it up. Without even mentioning the product they want to use, obviously not TSM though, and I'm not even sure it would make difference, how would you manage to get a 12TB LUN backed up daily. I would expect it to be at least 75% full if not more, and even without knowing what percentage of data changes on it, it would seem to me the request seems strange. They're thinking of getting a VTL and backing up through fiber direct, not across the network, but no idea which one or what sort of throughput to expect. Have any of you been approached with this sort of request and if so what was your response? I'm sort of dumbfounded at this point since I've not heard or seen this anywhere. Thanks, Geoff Gill TSM/PeopleSoft Administrator SAIC M/S-B1P 4224 Campus Pt. Ct. San Diego, CA 92121 (858)826-4062 (office) (858)412-9883 (blackberry) ----------------------------------------------------- Please see the following link for the BlueCross BlueShield of Tennessee E-mail disclaimer: http://www.bcbst.com/email_disclaimer.shtm
