The Wiert Corner – irregular stream of stuff

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘Power User’ Category

VMware ESXi has 2 bootbanks; with some luck the second contains your old ESXi version

Posted by jpluimers on 2021/10/19

Just in case I ever need this again:

  • [Wayback] VMware Knowledge Base: Reverting to a previous version of ESXi (1033604)
    1. In the console screen of the ESXi host, press Ctrl+Alt+F2 to see the Direct Console User Interface (DCUI) screen.
    2. Press F12 to view the shutdown options for the ESXi host.
    3. Press F11 to reboot.
    4. When the Hypervisor progress bar starts loading, press Shift+R. You will see the warning:
      Current hypervisor will permanently be replaced
      with build: X.X.X-XXXXXX. Are you sure? [y/n]
    5. Press Y to roll back the build.
    6. Press Enter to boot.
  • [Wayback] Downgrade ESXi 6.5 from update 3 to update 2 – VMware Technology Network VMTN; when out of luck:
    • This is not my case.As I mentioned, I don’t have altbootbank with update 2. This is because after update 3, I also installed the latest patch.So both bootbanks now have update 3.Is there any other option for me. Can I just install update 2 again so it will overwrite everything? Or it is impossible?
    • Backup ESXi configurations and reinstall it without overwriting VMFS.

Via: [Wayback/Archive.is] downgrade esxi 6.5 u3 to u2 – Google Search

–jeroen

Posted in ESXi6, ESXi6.5, ESXi6.7, ESXi7, Power User, Virtualization, VMware, VMware ESXi | Leave a Comment »

Would lvmraid have been improved over 2019? (back then: very single threaded, and does not leverage anything of the power of the actual device)

Posted by jpluimers on 2021/10/18

Reminder to self to check out if things have improved over time: [WayBack] Kristian Köhntopp on Twitter: “Trying my lvmraid kata from yesterday in real hardware was very frustrating. Everything is very single threaded, and does not leverage anything of the power of the actual device. … Basically, my linear-to-raid conversion idea died in the crib.” described to 2019 situation:

–jeroen

Posted in Hardware, Power User, RAID | Leave a Comment »

Argeweb takeover history

Posted by jpluimers on 2021/10/18

For my link archive:

–jeroen

Posted in Hosting, Power User | Leave a Comment »

SSDs: favour TLC over QLC when they usage pattern is to have them relatively full

Posted by jpluimers on 2021/10/18

Some interesting observations at [WayBack] Intel brengt 665p-ssd van 1TB met 96-laags qlc-nandgeheugen uit – Computer – Nieuws – Tweakers.

–jeroen

Posted in LifeHacker, Power User, SSD | Leave a Comment »

Be sure to apply (SSD) storage firmware updates before it breaks

Posted by jpluimers on 2021/10/15

Various storage providers have had overflow issues in their storage firmware , so be sure to apply firmware updates.

Example (that includes HPE and Intel failures): [WayBack] Bepaalde HPE-sas-ssd’s gaan kapot na 32.768 uur – Computer – Nieuws – Tweakers.

–jeroen

Posted in Hardware, Power User, SSD | Leave a Comment »

Some Dutch legal on your security camera’s that cover areas outside your own property

Posted by jpluimers on 2021/10/15

Some Dutch legal on your security camera’s that cover areas outside your own property: [WayBack] Politie pakt jongens op dankzij beelden slimme deurbel – Beeld en geluid – Nieuws – Tweakers.

Most important one (from the Dutch office that monitors GDPR compliance) in [WayBack] Cameratoezicht in en rond woningen | Autoriteit Persoonsgegevens:

In en rond woningen kunnen camera’s opgehangen worden om eigendommen te beveiligen en bewoners te beschermen. Zowel organisaties, zoals woningbouwverenigingen, als particuliere bewoners kunnen besluiten camera’s te plaatsen. Dit is niet verboden, maar er zijn wel voorwaarden aan verbonden.

Cameratoezicht door personen valt in principe niet onder de Algemene verordening gegevensbescherming (AVG). De Autoriteit Persoonsgegevens houdt hier dus ook geen toezicht op.

Wie een camera ophangt, moet ervoor zorgen dat de camera zo min mogelijk gericht is op de openbare weg of op eigendommen van anderen.

Is een camera wel (deels) gericht op een (deel) van de openbare weg? Of filmt iemand bijvoorbeeld de tuin van de buurman? Dan is de AVG wél van toepassing en houdt de Autoriteit Persoonsgegevens dus ook toezicht.

–jeroen

Posted in LifeHacker, Power User | Leave a Comment »

DICTATOR Adjunct 2500 mechanische deursluiter inbouw

Posted by jpluimers on 2021/10/15

Had to replace the door closing coil spring as the chain broke; found it at [WayBack] DICTATOR – mechanische deursluiters voor het zelfsluitend maken van deuren. Inbouw of opbouw op de deur:

Adjunct 2500 inbouw kettingdeursluiter
Adjunct 2500 & 2550

Adjunct 2500 / 2550 ketting inbouwdeursluiters

Adjunct 2500 ketting inbouwdeursluiter

De Adjunct 2500 en de Adjunct 2550 zijn mechanisch werkende ketting-inbouwdeursluiters. Deze sluiten, praktisch onzichtbaar, uw deuren. De deursluiter bestaat uit een in de deur gestoken buis met veer, trekstang en ketting. De constructie wordt d.m.v. een op de buis geschroefd bevestigingsplaatje bevestigd. De sluitkracht wordt overgebracht door de ketting, die over een gehard stalen prop loopt en ingehaakt wordt in de sleutelgatvormige opening van een kozijnplaatje. Voor zwaardere deuren is de Adjunct 2550 met een diameter van 22 leverbaar, met een dubbele veersterkte t.o.v. de Adjunct 2500

  Belangrijkste voordelen Adjunct 2500 / 2550 ketting inbouwdeursluiters

  •     Nagenoeg onzichtbaar door montage in de deur.
  •     Mechanisch werkend, dus onderhoudsvrij.
  •     Toepasbaar voor alle binnendeuren, zowel stompe als opdek.
  •     In combinatie met een DICTATOR deuropvanger een goed en prijsgunstig
        alternatief voor een deurdranger.

Read the rest of this entry »

Posted in DIY, LifeHacker, Power User | Leave a Comment »

Links to learn more about infrastructure.

Posted by jpluimers on 2021/10/14

For my link archive; [Archive.is] .DS_Storoz on Twitter: “Alright, I’m rage-quitting the frontend, moving into infrastructure. (Seriously.) Where is my community for this? Who do I follow? What conferences do I go to? Please and thanks and RT!”

Keywords:

  • Terraform, Docker, Kubernetes, AWS!
  • Systems Performance, Google SRE book, DDIA
  • the DORA report
  • b0rk

–jeroen

Posted in Amazon S3, Amazon SES, Amazon.com/.de/.fr/.uk/..., AWS Amazon Web Services, Cloud, Containers, Docker, Infrastructure, Kubernetes (k8n), Power User | Leave a Comment »

Querying Twitter for special characters

Posted by jpluimers on 2021/10/14

[Archive.is] 🏫⏳🏷🌎💸 – Twitter Search URI is https://twitter.com/search?lang=en&q=%F0%9F%8F%AB%2520%E2%8F%B3%2520%F0%9F%8F%B7%2520%F0%9F%8C%8E%2520%F0%9F%92%B8.

The source is

It searches for

🏫%20⏳%20🏷%20🌎%20💸

It gets you this result:

–jeroen

Read the rest of this entry »

Posted in Power User, SocialMedia, Twitter | Leave a Comment »

Raspberry Pi Turn Tv On/Off CEC – Tim Leland

Posted by jpluimers on 2021/10/13

[WayBack] Raspberry Pi Turn Tv On/Off CEC – Tim Leland (with some quote fixes) via [Archive.is] Brad Fitzpatrick on Twitter: “lol tear (from )… “:

Install cec-utils

Once everything is installed you should be able to control the tv using the command below:

  • Turn tv on: echo 'on 0' | cec-client -s -d 1
  • Turn tv off: echo 'standby 0' | cec-client -s -d 1
  • Set active source: echo 'as' | cec-client -s -d 1
  • Tv status: echo 'pow 0' | cec-client -s -d 1

Troubleshooting Tips:

  • Make sure your tv supports cec and that it is enabled. Tv manufactures call CEC by different names so you may have to do some research depending on your brand.
  • Make sure you are using a new hdmi cable that is at least HDMI 1.2a

Different names for HDMI CEC

  • Samsung – Anynet+
  • Sony – BRAVIA Link or BRAVIA Sync
  • Sharp – Aquos Link
  • Hitachi – HDMI-CEC
  • AOC – E-link
  • Pioneer – Kuro Link
  • Toshiba – Regza Link or CE-Link
  • Onkyo – RIHD (Remote Interactive over HDMI)
  • LG – SimpLink
  • Panasonic – VIERA Link or HDAVI Control or EZ-Sync
  • Philips – EasyLink
  • Mitsubishi – NetCommand for HDMI
  • Runco International – RuncoLink

Credits: http://raspberrypi.stackexchange.com/questions/7054/cec-wake-up-command

Related:

–jeroen

Read the rest of this entry »

Posted in *nix, *nix-tools, Development, Hardware Development, Hardware Interfacing, HDMI, Power User, Raspberry Pi, Software Development | Leave a Comment »