HAZI.ro - Important notification about your service

Comments

• jackb Member, Host Rep

  May 2023 edited May 2023

  @FlorinMarian said:
  The inverter I have has 4 inputs and one output, which will obviously only be used to power the rack and nothing more.

  You must be connecting that one output into a consumer unit/fuse box somewhere though right? And that consumer unit is also connected to mains?

  You need to disconnect the mains when the grid is down e.g. an automatic transfer switch. The Tesla powerwall backup gateway has one built in, but I don't think your system has one at all.

  If you don't, some poor electrical worker might shit himself and die.

  Thanked by 2MikeA adly
• hyperblast Member

  May 2023

  waiting for the 5950W yabs! will not order before yabs.
• AlexBarakov Patron Provider, Veteran

  May 2023 edited May 2023

  @FlorinMarian said:

  @AlexBarakov said:

  @FlorinMarian said: If, for example, there is no current in the public electrical network and the generator is not turned on and the panels do not produce enough energy, then the batteries will automatically come into operation to supply the necessary energy and later when the public network or the generator return, the batteries will be recharged and ready for a new discharge.

  Does this happen without interruption? Have you tested it? As you know - even a 2 second long blip will reboot your servers.

  Since they were not installed yet, I could not test them, but as far as I know, they are doing their job well at the ISP in Bucharest, which installed exactly the same infrastructure in the points around the city where they keep their equipment.

  The respective ISP only has business customers who offer it a minimum of 300 EURO/month without VAT, so I expect its customers to have the claim that there will be no interruptions of the Internet connection for a few minutes and if that condition is satisfied, then be with us too.
  I can't say it's 100% like that until I test it, but that's what an off-grid inverter is meant to do.

  Test it first and then move the servers, you might be disappointed. In business, I wouldn't really trust the goodwill of someone to help out. These are pretty rare occasions.

  Also, as others said - ensure that your generator does not back feed the power grid. I can't see how this would properly work without a proper ATS inside your equipment.

  Lastly - If I were you and I were transferring IP ranges between ASNs (And yes, I've done it multiple times), I would do the following:

  • At least 48 hours in advance, add a second route record in RIPE to the new ASN (yes, multiple route records are possible). Of course, keep the original up as well.
  • At least 48 hours in advance, add a second RPKI / ROA in RIPE (and yes, that's also possible). Of course, keep the original up as well.
  • Communicate with your new ISP, ensure that you have the BGP session up, you have the filters up. Ensure that their prefix lists / filters are also going to accept the prefix you will be announcing to them.
  • Prepare the configuration for the announcement. As soon as your maintenance window starts, set the announcements up on your new network equipment and ask your old DC to drop the announcement on their side.
  • When I've done similar migrations, I've also done a dry-run with a free prefix, that's not used. It usually helps sort out any small issues.

  Hope this helps.

  Thanked by 6FlorinMarian yoursunny Calin Abd fluffernutter adly
• FlorinMarian Member, Host Rep

  May 2023

  @AlexBarakov said:

  @FlorinMarian said:

  @AlexBarakov said:

  @FlorinMarian said: If, for example, there is no current in the public electrical network and the generator is not turned on and the panels do not produce enough energy, then the batteries will automatically come into operation to supply the necessary energy and later when the public network or the generator return, the batteries will be recharged and ready for a new discharge.

  Does this happen without interruption? Have you tested it? As you know - even a 2 second long blip will reboot your servers.

  Since they were not installed yet, I could not test them, but as far as I know, they are doing their job well at the ISP in Bucharest, which installed exactly the same infrastructure in the points around the city where they keep their equipment.

  The respective ISP only has business customers who offer it a minimum of 300 EURO/month without VAT, so I expect its customers to have the claim that there will be no interruptions of the Internet connection for a few minutes and if that condition is satisfied, then be with us too.
  I can't say it's 100% like that until I test it, but that's what an off-grid inverter is meant to do.

  Test it first and then move the servers, you might be disappointed. In business, I wouldn't really trust the goodwill of someone to help out. These are pretty rare occasions.

  Also, as others said - ensure that your generator does not back feed the power grid. I can't see how this would properly work without a proper ATS inside your equipment.

  Lastly - If I were you and I were transferring IP ranges between ASNs (And yes, I've done it multiple times), I would do the following:

  • At least 48 hours in advance, add a second route record in RIPE to the new ASN (yes, multiple route records are possible). Of course, keep the original up as well.
  • At least 48 hours in advance, add a second RPKI / ROA in RIPE (and yes, that's also possible). Of course, keep the original up as well.
  • Communicate with your new ISP, ensure that you have the BGP session up, you have the filters up. Ensure that their filters are also going to accept the prefix you will be announcing to them.
  • When I've done similar migrations, I've also done a dry-run with a free prefix, that's not used. It usually helps sort out any small issues.

  Hope this helps.

  Hello!

  Thank you very much for the recommendations, the ones that include the IPs I really hadn't taken into account earlier, but now they make sense.

  Regarding the generator, of course I will test the AC device and the Cisco switch that I already have in the location, watching whether or not they will have interruptions when I disconnect the power from the electricity supply network.

  The generator has ATS included.
• AlexBarakov Patron Provider, Veteran

  May 2023

  @FlorinMarian said:

  @AlexBarakov said:

  @FlorinMarian said:

  @AlexBarakov said:

  @FlorinMarian said: If, for example, there is no current in the public electrical network and the generator is not turned on and the panels do not produce enough energy, then the batteries will automatically come into operation to supply the necessary energy and later when the public network or the generator return, the batteries will be recharged and ready for a new discharge.

  Does this happen without interruption? Have you tested it? As you know - even a 2 second long blip will reboot your servers.

  Since they were not installed yet, I could not test them, but as far as I know, they are doing their job well at the ISP in Bucharest, which installed exactly the same infrastructure in the points around the city where they keep their equipment.

  The respective ISP only has business customers who offer it a minimum of 300 EURO/month without VAT, so I expect its customers to have the claim that there will be no interruptions of the Internet connection for a few minutes and if that condition is satisfied, then be with us too.
  I can't say it's 100% like that until I test it, but that's what an off-grid inverter is meant to do.

  Test it first and then move the servers, you might be disappointed. In business, I wouldn't really trust the goodwill of someone to help out. These are pretty rare occasions.

  Also, as others said - ensure that your generator does not back feed the power grid. I can't see how this would properly work without a proper ATS inside your equipment.

  Lastly - If I were you and I were transferring IP ranges between ASNs (And yes, I've done it multiple times), I would do the following:

  • At least 48 hours in advance, add a second route record in RIPE to the new ASN (yes, multiple route records are possible). Of course, keep the original up as well.
  • At least 48 hours in advance, add a second RPKI / ROA in RIPE (and yes, that's also possible). Of course, keep the original up as well.
  • Communicate with your new ISP, ensure that you have the BGP session up, you have the filters up. Ensure that their filters are also going to accept the prefix you will be announcing to them.
  • When I've done similar migrations, I've also done a dry-run with a free prefix, that's not used. It usually helps sort out any small issues.

  Hope this helps.

  Hello!

  Thank you very much for the recommendations, the ones that include the IPs I really hadn't taken into account earlier, but now they make sense.

  Regarding the generator, of course I will test the AC device and the Cisco switch that I already have in the location, watching whether or not they will have interruptions when I disconnect the power from the electricity supply network.

  The generator has ATS included.

  Make sure to test all possible scenarios - disconnect solar first, disconnect power second, disconnect both at the same time. Test what happens when your solar does not produce enough energy by connecting something power-consuming (read some kind of a blow heater, radiators, etc.). Ensure that everything works smoothly with each disconnect. All in all - do a lot of tests.

  Thanked by 3FlorinMarian Frecyboy adly
• yoursunny Member, IPv6 Advocate

  May 2023

  @hyperblast said:
  do the servers then go down and up again at sunrise?

  Basically the server does one push-up.

  Thanked by 2Calin fluffernutter
• emgh Member, Megathread Squad

  May 2023

  Why not move like one server at a time, wait a bit, them another one?
• stefeman Member

  May 2023 edited May 2023

  I don't know which one is funnier, the fact that we have first ever basement host in LET, or the fact that he will zap the shit out of grid workers during any maintenance, or the fact that he thinks that 5950W solar setup would actually produce over 5000W outside few select midsummer days, let alone rest of the year lol.

  Best of luck regardless. I will definitely order a VPS. There's no way I'd miss contributing to this clusterfuck. xD

  Thanked by 1yoursunny
• SirFoxy Member

  May 2023

  @emgh said:
  Why not move like one server at a time, wait a bit, them another one?

  balls deep is not merely a choice it is a lifestyle

  Thanked by 5MannDude emgh ralf fluffernutter adly
• Void Member

  May 2023

  Florin = Optimism 100

  Thanked by 1FlorinMarian
• Arkas Member, Retired Moderator

  May 2023

  Come on guys, no need to poop in this thread. Please keep it civil.

  Thanked by 2FlorinMarian amaalex
• Levi Member

  May 2023

  Never hold poop inside longer than needed. Stool must be extruded asap. Also, it is very important to identify what type of stool you are passing. For this, please refer to bristol stool chart described here: https://www.healthline.com/health/digestive-health/types-of-poop
• fluffernutter Member

  May 2023

  @emgh said:
  Why not move like one server at a time, wait a bit, them another one?

  You'd need more than one server for that to work.

  Thanked by 1emgh
• TimboJones Member

  May 2023

  @emgh said:
  Now I’ll go on a short walk

  Call a friend

  Have a few laughs

  Buy a RedBull

  And write my fucking law memorandum that’s due tomorrow

  See u feces man

  "What did you do yesterday instead of working on your memorandum?"

  "Just shit talking on LET".

  Thanked by 1emgh