- Roundtable - muug.ca

Re: [RndTbl] Lost messages/postings
by Adam Thompson 23 Jan '13

23 Jan '13

Once the mailman software has had its way with your message, it is no longer the same (identical) message so that isn't the case in any event. However, you're the third person lately to complain about missing their own posts. Gilbert/Bill, is it possible the list default setting for self-copy got changed? I don't know where to look... -Adam Hartmut W Sager <hwsager(a)marityme.net> wrote: >_______________________________________________ >Roundtable mailing list >Roundtable(a)muug.mb.ca >http://www.muug.mb.ca/mailman/listinfo/roundtable

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Dimensional hard drives?
by Adam Thompson 22 Jan '13

22 Jan '13

Ever double-check an assumption, only to find it false, and feel like the rug just got yanked out from under your feet? Go measure the width of a so-called 3.5" hard drive. Yeah, go ahead. It's 4" wide. Now go measure the width of a so-called 2.5" hard drive. Uh-huh... it's 2.75" wide. I just (re-?)discovered that and felt just as cheated as when I found out that the nominal sizes of dimensional lumber are complete B.S.! I knew this once upon a time, but I guess I forgot... 5.25" & 3.5" refer to the fact that it fits into the bay where you would have been able to fit a floppy drive accommodating the corresponding-size floppy disk. I can't find any derivation for why we call a 2.75" drive a 2.5" drive, since there's no such thing as a 2.5" floppy[1]! Perhaps the internal platter is 2.5" wide? (See: http://en.wikipedia.org/wiki/Hard_disk_drive#Form_factors) -Adam [1] OK, yes, there a 2.5" floppy did exist briefly, but it was never any sort of standard and I've never seen one in person AFAIK. FYI, the Sony micro-floppy format was not 2.5", it was 90mm (closer to 2", anyway).

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Hardware dimensions
by Michael Doob 22 Jan '13

22 Jan '13

On 13-01-21 11:08 PM, roundtable-request(a)muug.mb.ca wrote: > > Message: 1 > Date: Mon, 21 Jan 2013 15:18:35 -0600 > From: "Adam Thompson" <athompso(a)athompso.net> > To: "MUUG Roundtable" <roundtable(a)muug.mb.ca> > Subject: [RndTbl] Dimensional hard drives? > Message-ID: <006b01cdf81c$dfda70a0$9f8f51e0$(a)athompso.net> > Content-Type: text/plain; charset="UTF-8" > > Ever double-check an assumption, only to find it false, and feel like the rug just got yanked out from under your feet? > > Go measure the width of a so-called 3.5" hard drive. Yeah, go ahead. It's 4" wide. Now go measure the width of a so-called 2.5" hard drive. Uh-huh... it's 2.75" wide. I just (re-?)discovered that and felt just as cheated as when I found out that the nominal sizes of dimensional lumber are complete B.S.! > > I knew this once upon a time, but I guess I forgot... 5.25" & 3.5" refer to the fact that it fits into the bay where you would have been able to fit a floppy drive accommodating the corresponding-size floppy disk. I can't find any derivation for why we call a 2.75" drive a 2.5" drive, since there's no such thing as a 2.5" floppy[1]! Perhaps the internal platter is 2.5" wide? > > (See: http://en.wikipedia.org/wiki/Hard_disk_drive#Form_factors) > If it means anything, I just measured a 5 1/4 inch floppy, and it is indeed 5 1/4 inches wide. I also measured an 8 inch floppy (am I a packrat or what?) and it is 8 inches wide. I suppose the 5 1/4 inch drive was supposed to hold a 5 1/4 inch floppy. At least that would make the name logical. Cheers, Michael -- ------------------------------------------------------------------ Michael Doob Telephone: (204) 474-9796 Department of Mathematics Fax: (204) 474-7606 University of Manitoba email: Michael_Doob(a)umanitoba.ca Winnipeg, MB, Canada R3T 2N2 ------------------------------------------------------------------

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Lost messages/postings
by Hartmut W Sager 22 Jan '13

22 Jan '13

Oh no, now it's my turn! Help! My last several postings in the last two days to both RoundTable and Asterisk (mainly replies) have not shown up at all. What's going on??? (Sorry to the additional cc's I added here, but it's in case this doesn't reach RoundTable.) Hartmut Sager

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Some may be interested in this ...
by Dan Keizer 21 Jan '13

21 Jan '13

Some of us have been through both establishments when they were in the same building - they are now in separate buildings (but still quite close), so, some things have changed. At least we meet last at the Kings Head and some beer :-) Dan. http://mb.cips.ca/node/38 CIPS Manitoba "Behind the Scenes and in Secret Places" Date: Tue, 01/22/2013 Event Location: SkullSpace 2nd Floor, 374 Donald St. WINNIPEG, MB -- You may not know it, but Winnipeg pushes the technology envelope in all sorts of interesting ways -- we are the city that invented SharePoint - true story. CIPS Manitoba has facilitated a glimpse into the activities of two clubs in Winnipeg; a Makerspace and a Hackerspace. *AssentWorks* is a non-profit workshop dedicated to providing hands-on access to fabrication and prototyping equipment, knowledge, and a community of support for entrepreneurs, inventors, tinkerers, artists, and innovators. *SkullSpace* is a Hackerspace, founded December 2010. It is a place for hackers, builders, programmers, artists, and anybody interested in how stuff works to gather in a common place and help focus their knowledge and creativity. SkullSpace is the largest Hackerspace in Canada. Each group is comprised of experts from all sorts of disciplines. If you're interested in rapid prototyping, 3D printing, and fabrication, or your more into programing, IT security and hardware, these groups have a lot to offer. CIPS Manitoba is your host for a behind-the-scenes tour of both clubs. Starting at 5:30 PM, on Tuesday the 22nd of January, 2013, SkullSpace located on the 2nd floor of 374 Donald St. will open its doors to CIPS members. The tour will continue at 7:00PM over at AssentWorks located on the 3^rd floor of 125 Adelaide St. There will be an informal reception at the King's Head Pub, 120 King Street after the tours. Please join us on the 22^nd of January for a look into two of the most engaging technology groups this city has to offer. The technology landscape in Manitoba has never been so dynamic and interesting. Register early, you won't want to miss out on this exciting discussion! Date: Tuesday, January 22^nd , 2013 Location: SkullSpace 2nd Floor, 374 Donald St. AssentWorks 3rd Floor, 125 Adelaide St. King's Head Pub 120 King St. Registration: 5:00 P.M. First Tour: 5:30 P.M. Cost: CIPS Members: $25.00 Non-Members: $45.00 Student Members: $15.00 Related Groups: $40.00 VISA, cash or cheque accepted at the door. Those registered that fail to attend will be invoiced. Please notify us of any food allergies or diet restrictions and we will accommodate you. Register via email to manitoba(a)cips.ca <mailto:manitoba@cips.ca> Please share this information with your colleagues and co-workers. Thanks! *Linda Hunter* *President, CIPS Manitoba* Dan.

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Linux 4K drive formatting
by Kevin McGregor 20 Jan '13

20 Jan '13

So... I picked up my lovely new WD Red 3 TB drives today and installed them in my home server. Now what? :-) Specifically, I'm running Ubuntu Server 10.04 LTS (2.6.32-45-server #102-Ubuntu SMP Wed Jan 2 22:53:00 UTC 2013 x86_64 GNU/Linux), and I'm wondering if I should upgrade to Precise before I do anything with the drives, or use them as-is. I know I should align the partitions at (at least) 4 KB boundaries, and 10.04 by default uses 1 MB alignment, so I should be okay there. Should I worry that the drive reports fdisk -l /dev/sdc Disk /dev/sdc: 2199.0 GB, 2199023254528 bytes 255 heads, 63 sectors/track, 267349 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes ...instead of 3 TB, and thinks the sector and I/O size is 512 bytes? Advice, please! Kevin

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'We thought we'd sell 1, 000': The inside story of the Raspberry Pi
by Bill Reid 19 Jan '13

19 Jan '13

http://www.zdnet.com/we-thought-wed-sell-1000-the-inside-story-of-the-raspb…

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Switches
by Kevin McGregor 15 Jan '13

15 Jan '13

Would anyone be interested in surplus Cisco 2900 XL and 3500 XL switches? They are well-used with no warranty, 24- and 48-port 10/100 switches. FREE. I can't promise anything, but I'll try to get you one.

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Unison for file sync
by Dan Martin 13 Jan '13

13 Jan '13

Re File Synchronization Just about any versioning control should work to synchronize files between directories on the same or different machines. However, there is both processing overhead (may be negligible) and operator overhead. Unison seems to work great, and has already saved me a lot of headaches. Like many file copy / synchronization programs, it uses rsync underneath. -Dan Dan Martin GP Hospital Practitioner Computer Scientist ummar143(a)shaw.ca (204) 831-1746 answering machine always on

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RTFM: lsof(8)
by Gilbert E. Detillieux 09 Jan '13

09 Jan '13

Hi all. I've updated the MUUG meeting summary for last night's meeting... http://www.muug.mb.ca/meetings/12-13.html#jan ... and included a link to the little "lsofdest" script that I demoed as part of my RTFM presentation (as requested by Dan K.). -- Gilbert E. Detillieux E-mail: <gedetil(a)muug.mb.ca> Manitoba UNIX User Group Web: http://www.muug.mb.ca/ PO Box 130 St-Boniface Phone: (204)474-8161 Winnipeg MB CANADA R2H 3B4 Fax: (204)474-7609

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