back to article Sysadmin sank IBM mainframe by going one VM too deep

Welcome to another glimpse inside the dark-curtained (in)box that is "Who, me?" – El Reg's confessional column in which readers seek penance for sins of the past. This week, meet "George", who many years ago was one of two sysadmins in the office products division of a three-letter computer company. And was bored. Bored, bored …

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          1. Stevie

            Re: So you Brits were running your economy off of LSD for years (4 AC)

            Yeeeeeees, that's the cleverness of the double entendre.

            But thanks for hanging a lantern on it for the slower comment-wrights here.

          2. Nick Kew

            Re: Just to mudddy the waters a trifle ...

            So you Brits were running your economy off of LSD for years? That explains a bit...

            That goes back to the Romans. And we're not the only country to do it in modern times, though some (like Italy and Turkey) saw their £ fall so far as to eliminate any purpose for the S or D subdivisions.

          3. CrazyOldCatMan Silver badge

            Re: Just to mudddy the waters a trifle ...

            So you Brits were running your economy off of LSD for years?

            [Swivel-eyed gammon mode]

            AND THE EMPIRE! So don't you forget it boy that we owned ONE THIRD of the world!

            [/SEGM]

            1. jake Silver badge

              Re: Just to mudddy the waters a trifle ...

              "we owned ONE THIRD of the world!"

              As anybody can see from all the stuff they looted, proudly(??) displayed in the British Museum.

        1. Stevie

          Re: the currency was frequently referred to as Lsd. (4 LenG)

          Indeed it was, possibly most famously by the Bonzo Dog Doo-Dah Band in their seminal "Ali Baba's Camel".

        2. Loud Speaker

          Re: Just to mudddy the waters a trifle ...

          Maybe we can switch back after Brexit.

          Yes, lets. Its no more stupid than anything else to do with Brexit.

          1. CrazyOldCatMan Silver badge

            Re: Just to mudddy the waters a trifle ...

            Yes, lets. Its no more stupid than anything else to do with Brexit.

            And think of all the money that can be made by moving to another currency! All the stuff that costs 10p can mysteriously now cost 1s instead! But it would please all the really old codgers who were used to Lsd as kids.

            Mind you, actually making the coins would probably get outsourced to the French and Dutch 'for financial reasons'..

        3. onefang

          Re: Just to mudddy the waters a trifle ...

          So what you are saying is that the UK should all take LSD after Brexit? I suspect some Remainers think that's how Brexit got voted for in the first place.

        4. CrazyOldCatMan Silver badge

          Re: Just to mudddy the waters a trifle ...

          Pre-decimal pennies were denoted by "d" (for denarii). The middle item, shillings, was postfixed s (solidi)

          Shillings came via Germanic (skilling) which may didn't come from solidus. The shorthand Lsd, confusingly, does contain the 's' that comes from solidus but I suspect that's retro-engineered as part of the British attempt to be seen as the 'Nova Roma' from 1700 onwards.

          More info: https://www.etymonline.com/word/shilling

      1. Tim99 Silver badge

        Re: Just to mudddy the waters a trifle ...

        @jake

        I was told nearly 60 years ago at school, that the confusion with the pound weight (lb) and the pound currency (£) may be because they go back to a similar ancient derivations. The old Roman pound ("libra" roughly about 11-12 ounces) and the Saxon coinage of the old penny, a silver coin - 240 of which were made from a pound weight of silver. The shilling (derived from the Roman solidus gold coin weighing 1/72 of a pound) was equivalent to 12 silver pennies. There were 20 shillings in the £ so 12x20=240 is easily divided by 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, etc. The penny was divided into smaller coins: 2 ha’pennies (half pennys) and 4 farthings (“fourth things”) so there were 960 of the smallest coins to the £ allowing a wide range of quantities to be costed.

        Incidentally that is why small/inexpensive things were sold by the dozen (12) because 12 items at, say, 3 pennies each would cost 3 shillings, and as 12 is also easily divisible by 2, 3, 4 and 6. The seller and the buyer would know that 12 inexpensive items at a farthing each would be 3 pennies etc...

        1. Anonymous Coward
          Anonymous Coward

          Re: Just to mudddy the waters a trifle ...

          > Incidentally that is why small/inexpensive things were sold by the dozen

          And thus the reason why in the UK eggs are sold in multiples of 6 all the way up to the 12x12 wholesale trays.

          Although I think I heard somewhere that the Brussels overlords wanted to start forcing UK farmers to print the weight on each box, as the concept of selling things by unit quantity was beyond the comprehension of the bureaucrats.

          1. Yet Another Anonymous coward Silver badge

            Re: Just to mudddy the waters a trifle ...

            And thus the reason why in the UK eggs are sold in multiples of 6

            Haven't chickens been decimilised by now?

          2. Joe Werner Silver badge

            Re: Just to mudddy the waters a trifle ...

            The dozen-count actually comes from counting the segments (offsets? ;p ) of the digits with your thumb. Many societies had that. Look at minutes (time and angles) or degrees of a circle.

        2. TDog

          Re: Just to mudddy the waters a trifle ...

          You are a rich bugger - all we ever got was half, third and quarter farthings. All the rest were fantasy money...

          http://www.royalmintmuseum.org.uk/coins/british-coinage/old-denominations/fractional-farthings/index.html

          1. Stevie

            Re: Just to mudddy the waters a trifle ...

            I've sometimes heard the hash referred to as a waffle.

            And in Univac-speak, the ! is sometimes referred to as a bang (as in: "We ended up having to dollar-bang the 1100-80) and sometimes as a shriek (as in: "To list all lines using the pine editor type pee-shriek").

            Though I have heard someone (from TSB) speak of "Pee Bang*", I've never heard anyone say "Dollar-Shriek".

            * - A term with resonance in these days of accusations of collusion and secret KGB videos.

            1. jake Silver badge

              Re: Just to mudddy the waters a trifle ...

              "!" has been pronounced "bang" for centuries, it's a printer's term.

              For the computer world, look up "bang path". I was stanford!sail!jake in the late '70s and early '80s. (The bang path is mostly correct, but I've changed the name to protect the guilty as I should be archived at DejaGoo, if the gootards ever fix it :-)

              Then there is the "#!" interpreter directive ... Naming it back in the day was a trifle problematic ... "hashbang" was a no-go during the 70s; sounded too much like hashbong & the various neckbearded hippies[1] who were busy (re)inventing UNIX/BSD were paranoid ... octothorpe-bang is clumsy, and pound-bang is just plain weird ... So almost by default, it became "sharp-bang" which was modified to sh-bang (from /bin/sh), and pronounced & later written shebang.

              [1]They say that if you remember the SF Bay Area during the 60s & 70s, you didn't live there, but I'm here to tell you that some of us were smart enough to not get into pot ;-)

              1. Peter Gathercole Silver badge

                Re: Just to mudddy the waters a trifle ... @jake

                The ! path separator was adopted by UUCP mail in the UNIX world, and remnants of it still persist in the canned sendmail configurations shipped with real UNIX systems.

                I used to be att!ihnp4!hvmpa!gatherp within the AT&T name space (I've googled this, so I don't think it's leaking any info).

                ihnp4 used to be a very good machine to use to base mail path addresses, because it seemed to be connected to everything, and I was surprised to find a reference to an ihnp4 based ! mailpath in a document about 10 years ago. I think the name has finally gone now, but the name persisted with new systems adopting the name as hardware was retired.

                "ih" stood for Indian Hill, an AT&T development lab in Chicago where AT&Ts switching systems (telephone exchanges) were developed, amongst other things. "np" stood for network processor, and 4 was the number of the system.

                It was quite interesting, as because of the way that the ! separator specified a mail path, you could explicitly route mails through various systems to check connectivity. I frequently used to generate a mail loop back to myself, bouncing a mail of a distant server to check that a particular route worked.

                It's not that long ago (well, actually ~20 years - but that does not seem that long to me) that you were able to use ! mail routing with sendmail (with a normal rule-set) on TCP/IP networks, but as sendmail get replaced and explicit mail routing fell out of favor, it stopped working.

                1. jake Silver badge

                  Re: Just to mudddy the waters a trifle ... @jake

                  I still use UUCP to route stuff internally, including in my (smallish) news farm. Makes a lot of sense, for a lot of reasons.

                  My eldest Niece reports that comp-sci students at her Uni implemented a "students only" UUCP network over the existing school network a couple years ago. It's mostly used for email, small file transfer, and a private Usenet hierarchy. Seems the thirty-somethings who are supposedly the administrators never learned UUCP and have no idea that what they are doing even exists. No, I'm not naming the Uni ... but apparently they are connected to other schools, world-wide, and the PTB are none the wiser. To get around draconian filters, they even have a couple links that are dial-up, over POTS, if you can believe it. Good for them! :-)

                  ihnp4 was very good. Stanford was, too, as was ucb, for obvious reasons ... but I'd be rather leery of posting a real address here, even a very old one, which is why I munge mine. The gookids in charge of the DejaNews archive might eventually figure out how to properly put it back online. Unless they have completely fucked it up, which wouldn't surprise me. Seems that the concept of text-only is beyond their marketing addled brains.

            2. BostonEddie

              Re: Just to mudddy the waters a trifle ...

              From the mathom cabinet of my memory I recall that one of my coworkers in The Old Three Letter Computer Company referred to herself as D!---"D-Bang."

        3. Anonymous Coward
          Pint

          @Tim99

          Have yourself a beer for one of the most informative posts I've read on the Reg in a while. I never knew why the English had such a goofy system with pennies, shillings and farthings of seemingly arbitrary numbers, nor why buying stuff by the dozen had ever become a thing.

          1. John Brown (no body) Silver badge

            Re: @Tim99

            "nor why buying stuff by the dozen had ever become a thing."

            That bit is obvious. Everyone knows thing are cheaper by the dozen.

            As for the coinage, the US, when it was the colonies and not the US, also used £SD currency. The $ had to be invented. Canada was still using a £SD system until 1858.

            1. CrazyOldCatMan Silver badge

              Re: @Tim99

              The $ had to be invented.

              Interestingly, some northern dialects have used 'dollar' for 'pound' for a long, long time - almost certainly preceding the use in the new US..

              1. jake Silver badge

                Re: @Tim99

                "some northern dialects have used 'dollar' for 'pound' for a long, long time"

                When I were a lad in t' Dales, we called a crown (5/-) a dollar. Or, more usual, a half-crown (2/6) was half a dollar (and the cost of a Pint when I first got to Yorkshire). Later, I remember Reg Smythe's Andy Capp calling 50p a dollar. Now it's a pound. Must be inflation.

        4. dfsmith

          Re: Just to mudddy the waters a trifle ...

          Don't forget the guinea; which was (at least in my head) a pound that included the tip. (Mostly valued at 21 shillings, but somewhat dependent the value of gold.)

          1. Stevie

            Re: Value of a guinea

            Was one pound and one shilling. The value of golden coins of face value one guinea is a different matter.

            When I were a lad all fancy-shmancy services like private doctors and dentists, and furniture bought on hire purchase were all priced in guineas. Working class stuffwas priced in BSQ*.

            * - Bog Standard Quids.

        5. Glenturret Single Malt

          Re: Just to mudddy the waters a trifle ...

          As all primary school children learned, three (old) pennies weigh an ounce. A pound's worth of old pennies (240) therefore weighs 80 ounces or 5 pounds (lbs). Which explains why in my first week of Christmas post work in 1963, two of us were sent to collect a basket containing £10 in old pennies.

        6. SonOfDilbert
          Pint

          Re: Just to mudddy the waters a trifle ...

          I feel ashamed that I never knew the root of pounds, shillings and pence until now.

    1. Missing Semicolon Silver badge
      Devil

      "the default being a hashtag #."

      I didn't know Amber Rudd wrote for El Reg?

      1. Roger Kynaston

        Re: "the default being a hashtag #."

        >I didn't know Amber Rudd wrote for El Reg?

        But she would understand it all even less than she does if that is possible. "Someone needs to get control of the octothorpes!"

        1. onefang

          Re: "the default being a hashtag #."

          "Someone needs to get control of the octothorpes!"

          So that would be Ian Thorpe the well known Aussie swimmer, Billy Thorpe the well known Aussie rock star, and six other people called Thorpe? I suppose that technically our head of state is the Queen of England, so the UK already has control of us Aussies?

    2. anothercynic Silver badge

      About hashes, pounds and hashtags...

      I agree with Dwarf here... it's not a hashtag. A hashtag by definition is a word *prefaced* by the hash/pound sign, #. Don't be mixin' your terminology here, you hear?

      Easiest way to distinguish between the English pound (£) and the American pound (#) is to call the one the Sterling sign (which the £ is after all... the Pound Sterling, thank you very much!)

      Much easier than 'octothorpe' ;-)

      1. Butler1233

        Re: About hashes, pounds and hashtags...

        You oculd call it the sterling sign, but you will upset users of the following currencies:

        Guernsey pound

        Saint Helena pound

        Egyptian pound

        Falkland Islands pound

        Gibraltar pound

        Manx pound

        South Sudanese pound

        Syrian pound (uses £S, but close enough)

    3. Amos1

      "Incidentally, since we call it a hash in the UK, but the Americans call it a pound and the social media companies are US based, why don't they call it a poundtag ?"

      I was wondering why it's not called a dollartag in the U.K.

      Similar to how we drive on the parkway and park on the driveway.

    4. SgtFalstaff

      #2 Pencil?

      Am I the only one who remembers it being the 'number' sign?

      It was only after we get a push button phone did I hear the term 'pound' sign.

      1. onefang

        Re: #2 Pencil?

        "Am I the only one who remembers it being the 'number' sign?"

        Not the only one. Perhaps we could just start calling it "The symbol previously known as (insert what you usually call it here)", though then Triple J DJs will start calling it Dave.

    5. This post has been deleted by its author

    6. DougMac

      "Incidentally, since we call it a hash in the UK, but the Americans call it a pound.."

      That usage in the US has gone away decades ago. It was current when typewriters were a thing and was used then, but since computers came around, nobody abbreviates pound as #.

      1. Paul Hovnanian Silver badge
        Devil

        "nobody abbreviates pound as #"

        Rarely. But I still read it that way. Which makes the recent social movement, #MeToo sound a bit strange.

      2. Anonymous Coward
        Anonymous Coward

        That usage in the US has gone away decades ago. It was current when typewriters were a thing and was used then, but since computers came around, nobody abbreviates pound as #.

        ================================================================

        On the contrary, it's used all the time, both as an abbreviation for pound, and even more so, as an abbreviation for number, as in #6 shot... which gets swapped for #4 shot if you move to steel.

      3. Mark Dempster

        >That usage in the US has gone away decades ago. It was current when typewriters were a thing and was used then, but since computers came around, nobody abbreviates pound as #.<

        The term still seems to be used by most telephone conferencing systems, automated licencing validations, etc

      4. Commentator

        The # is the common American symbol for pound weight, and is used where we would use lb - grocery, butchers etc on labels and in adverts.

      5. Martin-73 Silver badge

        @DougMac... explaining the downvotes

        Having lived in the US for a few years (in various places) but being a brit ... so i noticed these things... The 'nobody calls it a pound sign' is VERY strongly regional and/or local.

        Some places assume if you say pound sign you mean Lb, and call # 'a number sign', others almost exclusively use it as a weight identifier " #potatoes 39c " isn't a weird hashtag, it's telling you the tubers are cheap

    7. Wzrd1 Silver badge

      "Incidentally, since we call it a hash in the UK, but the Americans call it a pound and the social media companies are US based, why don't they call it a poundtag ?"

      Because, far too many of us in the US call social media a "pound sand tag" and treat it accordingly.

    8. Byron "Jito463"

      I still call it the 'pound' sign. Then again, I don't do "social media".

    9. jelabarre59

      I just call it a "number sign". "Hash" is what we make with leftover corned-beef, or what the drug dealers sell in downtown Poughkeepsie. "Pound" is what we *do* to those drug dealers in downtown Pok.

    10. aqk
      Headmaster

      Hash? Corned Beef?

      Actually the proper name (and it has been around for decades) is an OCTOTHORPE.

  1. Velv
    Childcatcher

    And the moral of the story is...

    There's no such thing as a development machine, they're all "production" to somebody. The impact of breaking them may be less, but you've always got to consider who's going to be pissed if you break something.

    1. Korev Silver badge
      Boffin

      Yep. I once did a test upgrade onto a VM of some software and told some of our scientists to give it a quick test to make sure the upgrade didn't break anything before I upgraded the productive server. As it was only a test I'd created an iSCSI LUN for the user files (obviously I didn't setup backups as it was a test). Once we'd shown that the new version didn't break anything, I upgraded the system and then blew away the VM and associated LUN. I then got an email from a scientist who'd ignored the fact that it was only a test system for an upgrade and had done real work on it and now didn't have any of the data. I did try to get it back, but even the storage vendor couldn't help.

      Scientists, not as good at following instructions as you think -->

      1. Voland's right hand Silver badge

        Scientists, not as good at following instructions as you think -->

        Based on 2 years of sysadminning in Uni and R&D facility in my youth - you are being overly polite. In fact, I would prefer to describe "Scientist following instructions" as the ultimate oxymoron.

        1. ridley

          But, where would we be IF scientists always followed instructions?

          I would rather have scientist that played around and occasionally went "mm that's odd'.

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