General discussion moved from another thread!!

    • geaves wrote:

      flmaxey wrote:

      What you're describing is why I have a 3rd clone, the "master"
      That was my idea over the holiday...still hasn't happened :( and it was also an idea to test out dd using my Mint laptop rather than win32image on a spare W7 laptop which takes 3 hours to read and write an image.
      Good grief, 3 hours? 8o With 2 drives, it's no wonder why you've been reluctant to clone. I've been reading and writing 32GB images to/from drives in roughly 30 minutes each way (1 hour). (If you're not using h2testw_1.4 to "precertify" the destination drive as error free, Win32Diskimager can do a secondary verification after a write.) In my case, I've using a fairly quick client, and I'm using USB 3.0 drives in 3.0 ports. For speed, that can make a difference.

      Still, from a process point of view, this is yet another reason why having 3 boot drives is a real good idea.
      - Take the server down - 30 seconds
      - Boot on the master (the 3rd drive) - 1 minute or so
      - Take all the time you need to read your working drive and write the 2nd drive. (Since all NAS functionality is on the master, it could stay in overnight if needed.)
      - On the other side - take it down, pull the master, and you're back up on the 2nd drive. It's 1.5 to 2 minutes, you're back to normal, and everything has been tested.

      And while 32GB is no small file to keep, the image file is yet another backup that one can use to write over and over. Now that I have a butt load of storage, I'm thinking about archiving the major changes so I can drop way back if needed or if corruption slips in at some point. What can I say? I'm conservative. :D
      Good backup takes the "drama" out of computing
      ____________________________________
      OMV 3.0.95 Erasmus
      ThinkServer TS140, 12GB ECC / 32GB USB3.0
      4TB SG+4TB TS ZFS mirror/ 3TB TS

      OMV 3.0.95 Erasmus - Rsync'ed Backup
      R-PI 2 $29 / 16GB SD Card $8 / Real Time Clock $1.86
      4TB WD My Passport $119

      The post was edited 1 time, last by flmaxey: edit ().

    • Using Win32diskimager 1.0, I just imaged my working USB3 boot drive (32GB) to a file. The read was 7 minutes. The verification process of the file took another 7 minutes. Writes take much longer - it looks like it might be 1:30 or so. A verification adds another 7 more minutes to that. In any case, write times are not a factor if the active boot drive is plugged back in, immediately after the read. (I don't know where I got write times for the post above but with the server up and running, generally, I walk away.)

      Since I made significant alterations to my ZFS pool before this update, meaning the 3rd copy master couldn't used in the interim, the first 15 to 16 minutes was a hard outage. With Pi-Hole down and to prevent this event from inconveniencing my lovely wife, I temporarily enabled DNS on my router. You could do that and, in your case, DHCP leases would remain active on your clients throughout (or at least until they're rebooted). In a 15 to 16 minute time frame, new DHCP leases shouldn't be an issue.
      Good backup takes the "drama" out of computing
      ____________________________________
      OMV 3.0.95 Erasmus
      ThinkServer TS140, 12GB ECC / 32GB USB3.0
      4TB SG+4TB TS ZFS mirror/ 3TB TS

      OMV 3.0.95 Erasmus - Rsync'ed Backup
      R-PI 2 $29 / 16GB SD Card $8 / Real Time Clock $1.86
      4TB WD My Passport $119
    • New

      I'm now alive......having fallen down the stairs because my knee decided to give way I end up with a sprained wrist and a knee that looked like a soccer ball! when the doc came out he couldn't decide if it was fluid on the knee or a cartilage problem.....on top of that I develop a stomach viral infection.....so 5 days later after being bed bound the knee has gone down and the infection has gone and I have been able to eat and get things back working over the last couple of days. Knee and wrist are sore but I can walk and eat......the joys of getting older :)

      flmaxey wrote:

      I've been reading and writing 32GB images to/from drives in roughly 30 minutes each way (1 hour). (If you're not using h2testw_1.4 to "precertify" the destination drive as error free, Win32Diskimager can do a secondary verification after a write.) In my case, I've using a fairly quick client, and I'm using USB 3.0 drives in 3.0 ports. For speed, that can make a difference.
      Aha! that's my problem then....cos everything I have is USB 2.0 :( saying that I have had the opportunity today to test the wife's W10 laptop this has USB 3.0 ports (identical to mine except I run Mint)....so plugged in a USB 3.0 external hard drive, the drive light comes on green!! plug into my machine the drive is blue, confirming the drive has detected a USB 3.0 port......so investigating the wife's there appears to be no specific driver for her laptop for W10 other than the one that comes through Windows Update via Intel!
      Checking MS and Clevo (manufacturer) the suggestion from MS is to use the W7 driver....and as usual W10 barfs at that being installed....wrong o/s!!
      So back to square 1 get a USB 3.0 flash drive....create an image using the backup flash drive through dd then write that image to a USB 3.0 drive and test it....what a pia....added to that pi-hole is still as is, but it's working. :)
    • New

      Man,, a trip down the stairs,, the HARD way. (Just tell me the wife or the number 1 son didn't "assist" you. :) ) A stomach viral infection too... That's insult to injury. Yeah, medical issues as we get older,, "bleep" !
      ___________________

      On cloning- remember shutdown and coming up is about a 1.5 to 2 minute process.

      If you do your process to accommodate uptime, your down time shouldn't take any longer than it takes to read and verify your working drive. (About 15 minutes.) After that, with the image file saved and verified, you come back up on your working drive and take as long as you like to write the second one. When it's ready, swapping them out is another 2 minute round trip. (Oh, sorry, the staircase was so soon...)

      With a 3rd drive, it's real easy.
      Good backup takes the "drama" out of computing
      ____________________________________
      OMV 3.0.95 Erasmus
      ThinkServer TS140, 12GB ECC / 32GB USB3.0
      4TB SG+4TB TS ZFS mirror/ 3TB TS

      OMV 3.0.95 Erasmus - Rsync'ed Backup
      R-PI 2 $29 / 16GB SD Card $8 / Real Time Clock $1.86
      4TB WD My Passport $119
    • New

      flmaxey wrote:

      On cloning- remember shutdown and coming up is about a 1.5 to 2 minute process.

      If you do your process to accommodate uptime, your down time shouldn't take any longer than it takes to read and verify your working drive. (About 15 minutes.) After that, with the image file saved and verified, you come back up on your working drive and take as long as you like to write the second one. When it's ready, swapping them out is another 2 minute round trip.
      That makes sense, what I've been doing doesn't....so getting a third drive is going to be beneficial and have left as the master.....first I do need to update pi-hole to get the graphs working at least, but so far the current set up has been working seamlessly. Once I get another drive I can then get an improved 'rota system' working to reduce the downtime to just a change over of usb's.
    • New

      If pi-hole works, it works. A pretty console is not a big deal, IMO.

      I updated the pi-hole "How To". Other than the need to wait a few minutes for the console to come up after a start/restart, there's no difference in setup.
      It is a bit better in the graphs and stat's offered, but the real bonus the new version offers is DNSSEC (In, Settings, DNS). I'm using it with Google and Norton public servers. With DNS middle man attacks eliminated or at least reduced, it would have to be more secure. Of course, if something goes wrong, you can drop back. That's the beauty of maintaining a clone.
      _______________________________

      So what did the trip down the stairs and the stomach virus cost you? (If anything.) Is UK medical care really good? (I know that's a subjective question.) Liberals over here think it's great. Conservatives, think otherwise.
      Good backup takes the "drama" out of computing
      ____________________________________
      OMV 3.0.95 Erasmus
      ThinkServer TS140, 12GB ECC / 32GB USB3.0
      4TB SG+4TB TS ZFS mirror/ 3TB TS

      OMV 3.0.95 Erasmus - Rsync'ed Backup
      R-PI 2 $29 / 16GB SD Card $8 / Real Time Clock $1.86
      4TB WD My Passport $119
    • New

      flmaxey wrote:

      If pi-hole works, it works. A pretty console is not a big deal, IMO.

      I updated the pi-hole "How To". Other than the need to wait a few minutes for the console to come up after a start/restart, there's no difference in setup.
      It is a bit better in the graphs and stat's offered, but the real bonus the new version offers is DNSSEC (In, Settings, DNS). I'm using it with Google and Norton public servers. With DNS middle man attacks eliminated or at least reduced, it would have to be more secure. Of course, if something goes wrong, you can drop back. That's the beauty of maintaining a clone.
      Installed new pi-hole....took minutes :) and have made the changes you recommended to the DNS option. Once this was done I shutdown and created an image then put the flash drive back and rebooted....didn't take long to create the image....now writing the image to the second flash drive so I have an up to date clone, then I'll swap them over.
      The new pi-hole graphs are working, albeit the gui appears to be a little slower.

      flmaxey wrote:

      So what did the trip down the stairs and the stomach virus cost you?
      Nothing :)

      flmaxey wrote:

      Is UK medical care really good? (I know that's a subjective question.) Liberals over here think it's great. Conservatives, think otherwise.
      That's a difficult one to answer, NHS seems to be under pressure from emergencies and when that happens elective surgery gets cancelled (this is day surgery) this happened to me 4 years ago. I was due to have a gall bladder removal, 4 times it got cancelled. I ended up going in an a Saturday, apparently the NHS or rather the hospital gets fined if elective surgery is cancelled more than 3 times over a given period, hence the Saturday appointment.
      Anyway, I got in get prepped taken into surgery, when I come round I'm told they can't operate I'm going to have to go to The Royal London for specialist surgery, turns out I had Mirizzi Syndrome Type IV very rare, bile was 'leaking' into my abdomen which if not corrected immediately could cause sepsis.
      This is where the NHS balancing act falls over, by continually cancelling my elective surgery and not completing it within a certain time frame could have put my life at risk.....however, no one was to know that until the surgery started....'if' this was completed within two appointments I would have been in and out instead of spending three weeks at a hospital 60+ miles away.
      The NHS needs a major overhaul and I believe problems started and have got worse since they placed hospitals within Trusts.....do I believe in the NHS, yes I do probably one of the greatest institutions set up in the UK, employees and employers contribute to it....and if it wasn't for the NHS my father would have dead in his 50's.
      I have never understood why a country as big as the US has never adopted a similar system, to deny medical care based upon affordability to me is unfair....but then again I don't fully understand your system.
      I do know the NHS will treat anyone, but you're not a UK/EU citizen you have to pay, but in some people can't afford too, and when they are discharged they return to their country leaving the NHS to chase payment.
      The last time I was in the US I had run out of a drug I use daily (sometimes I have to double up on the dose) anyway went to a local Pharmacy, they had two types, one I could buy 'off the shelf' the other was prescription only.....the only difference was the prescription one was double the dose, 30mg compared to 15mg off the shelf...well that was a no brainer, but in the UK the drug is prescription only!
      Whatever happened to Obamacare? it was in the news for a while then it just fizzled out, well at least over here anyway.
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