It sounds like this gave it on a per-save basis. Shadow copy gives it to you only if you took a snapshot, which has a non-trivial affect on performance (it snapshots the whole volume in a block level way, such that we have to incur copy-on-write IO costs). From what people have said of the feature, it sounds a bit more cunning, and at a logical level, rather than block based.
A plust for snapshot however is that it also snaps the directory / file hierarchy, it sounds like, if however your data scheme made a dependency on a certain file structure representing something, it doesn't sound like you have the ability to say _not_ see file X, b/c you're looking at a previous version of the directory itself ... perhaps I'm wrong though. Cheers, BrettSh [msft] SDE - ESE On Fri, 13 Jan 2006, Robert Bobel wrote: > Doesn't shadow copy essentially give you multiple file versions? > > ________________________________ > > From: [EMAIL PROTECTED] on behalf of Brett Shirley > Sent: Fri 1/13/2006 12:46 PM > To: [email protected] > Subject: Re: [ActiveDir] OT: DEC 2006 (way OT ...) > > > > Al, > > > I always wished that Microsoft would support multiple file versions like > > VMS did. > > I'm just curious, if you have the time, for my own edification, what was > this VMS file system feature? Could you elaborate how it worked? > > Cheers, > BrettSh [msft] > SDE - ESE > > > On Thu, 12 Jan 2006, Al Lilianstrom wrote: > > > Don't forget the VAXMate and PCSA v1.1. What a interesting pair... > > > > My brother in law worked for DEC at that time and had a VAXStation II > > and a Pro350 that he had bought from DEC in his basement. Kept trying to > > sell me the Pro. > > > > VMS was great. I turned off my last VAX just over 2 years ago. It had > > been up and running for 8 years. Great OS, great hardware, lousy company > > management. > > > > I always wished that Microsoft would support multiple file versions like > > VMS did. > > > > al > > > > Lee, Wook wrote: > > > Ah, now we're really dragging out the old war horses. My first job at > > > DEC was writing CBI courses for the DECmate WPS+ list processing module. > > > They gave me a Robin (think VT100 with a processor and dual 5.25" floppy > > > disks) to use at home (a little basement studio next to the laundry room > > > in the basement of my apartment building in Acton, MA.) My second job > > > was writing a device driver in C for a Polaroid CRT-to-film peripheral > > > called the Polaroid Palette (had a mini-high resolution B&W CRT and a > > > Color-filter wheel all controlled by a Z80 processor) for the very same > > > Rainbow PC. > > > > > > In those days, Digital could not decide on a PC strategy. There were > > > three different product lines that all had some potential but none of > > > them took off. We had the Rainbow which was close to what became > > > mainstream with an 8088 or 8086 processor, the DECmate with was > > > basically a secretarial workstation running WPS+ and not much else and > > > the Pro 350 which was a repackaged PDP-11 that spent a few years as the > > > console device for some of the bigger VAXen. If I recall correctly, the > > > Pro 350 OS was based on RSTS. > > > > > > Those were the good old days before 1987 and Black Tuesday. I think I > > > had some Digital options at something like $150. Sigh. > > > > > > Wook > > > > > > -----Original Message----- > > > From: [EMAIL PROTECTED] > > > [mailto:[EMAIL PROTECTED] On Behalf Of Kat Collins > > > Sent: Wednesday, January 11, 2006 6:18 PM > > > To: [email protected] > > > Subject: Re: [ActiveDir] OT: DEC 2006 > > > > > > Anyone remember the Rainbow? It was DEC's attempt at a Personal > > > computer. Launched in early '83, if I remember... ran its own > > > proprietary DEC-OS and was not compatible with any IBM-DOS apps. It > > > died a year or two later, but the marketing stickers held up for about > > > 10 years!! I had one stuck to my daughter's mirror and damned if I > > > could get it off!! > > > > > > And the DECwriter and the Gold key..... ahhhh - sweet memories!! > > > > > > On 1/11/06, joe <[EMAIL PROTECTED]> wrote: > > >> Ah but people using DEC and attending DECUS were smarter than the > > > average > > >> bear.... To this day the people I meet who grew up on DEC are more > > > well > > >> rounded and knowledgeable in the field than the norm. > > >> > > >> The good ol days... Anyone remember Mike Mayfield and the RSTS/E > > > Monitor > > >> Internals books he wrote? Only place to get the real scoop on the > > > internals > > >> so you could really wreak havoc. I think he also wrote the original > > > Trek too > > >> so if your system was still up after poking around in the internals > > > you > > >> could play a video game on your DecWriter or VT52. > > >> > > >> I got my first official corporate support position supporting OS/2 and > > > Win31 > > >> on Token Ring back in the mid 90's because I knew DEC. The 8 or so > > > people in > > >> the panel interview started asking me questions about the equipment > > > the job > > >> was for (OS/2 Win31 tcp/ip Token Ring) and I couldn't answer any of > > > the > > >> questions so they saw DEC on my resume and started asking DEC > > > questions and > > >> a couple of hours later we were all laughing and I had my choice of > > > the > > >> three open positions they had even though I knew nothing about any of > > > them. > > >> :) > > >> > > >> > > >> > > >> > > >> -----Original Message----- > > >> From: [EMAIL PROTECTED] > > >> [mailto:[EMAIL PROTECTED] On Behalf Of John > > > McGlinchey > > >> Sent: Tuesday, January 10, 2006 4:13 PM > > >> To: [email protected] > > >> Subject: RE: [ActiveDir] OT: DEC 2006 > > >> > > >> My experience is just the opposite. I attended DECUS (The other DEC, > > > Digital > > >> Equipment Computer Users Society Symposia) a few times back in the > > > 90's and > > >> the casinos complained that the attendees were not losing enough > > > money. > > >> This was attributed to 1) most of the attendees knew the odds were > > > against > > >> them so they kept their money in their pockets where it belonged and > > > 2) the > > >> ones that did play were pretty good at it and were winning too much. > > >> > > >> I'll not be attending but I'm sending someone that works for me > > > instead. > > >> Have a good conference. > > >> > > >> John McGlinchey > > >> > > >>> -----Original Message----- > > >>> From: [EMAIL PROTECTED] > > >>> [mailto:[EMAIL PROTECTED] On Behalf Of Thommes, > > >>> Michael M. > > >>> Sent: Tuesday, January 10, 2006 3:38 PM > > >>> To: [email protected] > > >>> Subject: RE: [ActiveDir] OT: DEC 2006 > > >>> > > >>> I think you are going to find the same at Green Valley - > > >>> http://www.greenvalleyranchresort.com/gaming/index.html > > >>> > > >>> Leave your car and house titles at home! > > >> List info : http://www.activedir.org/List.aspx > > >> List FAQ : http://www.activedir.org/ListFAQ.aspx > > >> List archive: > > > http://www.mail-archive.com/activedir%40mail.activedir.org/ > > >> List info : http://www.activedir.org/List.aspx > > >> List FAQ : http://www.activedir.org/ListFAQ.aspx > > >> List archive: > > > http://www.mail-archive.com/activedir%40mail.activedir.org/ > > > > > > > > > -- > > > Kat Collins - "The Email of the species is more powerful than the Mail!" > > > > > > "The human voice is the organ of the soul." Henry Wadsworth Longfellow > > > List info : http://www.activedir.org/List.aspx > > > List FAQ : http://www.activedir.org/ListFAQ.aspx > > > List archive: > > > http://www.mail-archive.com/activedir%40mail.activedir.org/ > > > List info : http://www.activedir.org/List.aspx > > > List FAQ : http://www.activedir.org/ListFAQ.aspx > > > List archive: http://www.mail-archive.com/activedir%40mail.activedir.org/ > > > > -- > > > > Al Lilianstrom > > CD/CSS/CSI > > [EMAIL PROTECTED] > > List info : http://www.activedir.org/List.aspx > > List FAQ : http://www.activedir.org/ListFAQ.aspx > > List archive: http://www.mail-archive.com/activedir%40mail.activedir.org/ > > > > List info : http://www.activedir.org/List.aspx > List FAQ : http://www.activedir.org/ListFAQ.aspx > List archive: http://www.mail-archive.com/activedir%40mail.activedir.org/ > > > List info : http://www.activedir.org/List.aspx List FAQ : http://www.activedir.org/ListFAQ.aspx List archive: http://www.mail-archive.com/activedir%40mail.activedir.org/
