Honestly Geoff, I think I'd have to tell them to stop smoke'n crack... In reality, people do what is easiest for them and/or their application. I'm sure it will be easier on them to make one big ~container~ for all their ~stuff~ rather than spread it out over lots of smaller areas. They might say "It will be subdivided via the directory structure" and if so I'd tell them to then make each subdirectory an independent filespace. Point out the simple things to them... Is it quicker for one person to count from 1 to 13194139533312 (12 TB's) Or for 2 people to each count from 1 to 6597069766656 Or for 4 people to each count from 1 to 3298534883328 Or for 8 people to each count from 1 to 1649267441664? And remind them that all the paths, keys, locks, etc... of all the components of "the big picture" have to be considered when designing such a large environment. (and sometimes you just have to let people shoot themselves in the foot but make sure you have logged evidence saying "I told you so")
Just my two cents worth... Dwight -----Original Message----- From: ADSM: Dist Stor Manager [mailto:ads...@vm.marist.edu] On Behalf Of Gill, Geoffrey L. Sent: Wednesday, May 26, 2010 6:04 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)
