Posts made by travisdh1

I've been working on a bunch of stuff lately, and I'm going to be recording some of the annoyances and fixes in the near future.

For now, it's Docker and getting access to Nvidia cards in containers.

For starters, just use Ubuntu Desktop. I know it sucks running a desktop for servers, but in this case the Desktop installer allows you to install the Nvidia proprietary drivers. I had no luck getting the proprietary drivers working on Ubuntu Server.

Step 1: Install Ubuntu Desktop and make sure to select the proprietary Nvidia driver.
Step 2: Verify nvidia-smi has the correct card(s) listed.
Step 3: Run the script below. Sourced from the Docker and Nvidia sites.

Edit: added nvidia-docker2 to the installed Nvidia software

# Add Docker's official GPG key:
sudo apt-get update
sudo apt-get install ca-certificates curl
sudo install -m 0755 -d /etc/apt/keyrings

sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
sudo chmod a+r /etc/apt/keyrings/docker.asc

# Add the repository to Apt sources:
echo \
"deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
 $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

sudo apt-get update

sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

curl -fsSL https://nvidia.github.io/libnvidia-container/gpgkey | sudo gpg --dearmor -o /usr/share/keyrings/nvidia-container-toolkit-keyring.gpg \

  && curl -s -L https://nvidia.github.io/libnvidia-container/stable/deb/nvidia-container-toolkit.list | \

sed 's#deb https://#deb [signed-by=/usr/share/keyrings/nvidia-container-toolkit-keyring.gpg] https://#g' | \
sudo tee /etc/apt/sources.list.d/nvidia-container-toolkit.list

sudo apt-get update
sudo apt-get install -y nvidia-container-toolkit nvidia-docker2

@gjacobse Now that I think about it, you might want to try a bios reset on the iDRAC. I don't know if that will make a difference, but it's corrected issues with them for me in the past.

@gjacobse said in Dell r720 and Hitachi Drive:

iDRAC -

Ended up being short lived excitement when I came in last night to see that I could access the LifeCycle controller and was able to get the iDRAC connected.

Used the reboot option and that was it I suppose... Back to LifeCycle controller being disabled and the iDRAC being inaccessible.

Odd also is that it seems to only allow one of the four main NICs over the iDRAC NIC - Has it been so long since I worked on something at this level that I've misconstrued some information on how the iDRAC NIC is suppose to work/

iDRAC normally has a NIC separate from all the others. Some utilize the same NIC as the main system, but those are the jank version. My R620 iDRAC is a physically separate network port, and all the servers at work are as well.

@gjacobse said in Dell r720 and Hitachi Drive:

Specs:
Dell r720 surplused
Hitachi HUC106060css600 512 drives

I admit - I've realized that the last server I had to physically touch was likely back in 2009. While I have worked with systems, I've not had to build or rebuild an array in a very long time. So I am a tad rusty.

System does see these drives - I have a full complement of sixteen to fully populate the two bays. However I have run into a slight issue with these drives I hadn't had to work with previously as technology has changed.

These drives are per the details above 512/512e and the r720 doesn't want to 'accept' them. While the PERC does see them, they are all marked as BLOCKED.

Now, I understand that sector size is set and cannot be changed - I rather expected to find the correct firmware needed to update the PERC to allow these drives to be used...

I do see that Dell has the driver for this drive - but reading the details about it seems to point at an OS side issue and not the PERC.

I fully expect that I am simply overlooking the solution because I am looking at or for the wrong information.

Are you looking at the PERC bios screen? If it's in standard RAID mode, that's where you need to setup the array.

Hotkeys are always different. If you have access to the iDRAC, you should be able to boot directly into the RAID bios from that. I have an even older R620 still in use as my home lab box, and that's normally how I access the PERC bios when needed.

You're reminding me that I really should see about upgrading my home lab box.

If any of you still have customers on AT&T Office At Hand/RingCentral, reboot your phones.

They let an SSL cert expire. Now that they've corrected that, phones are able to register again.

Well, that was a fun afternoon.

Client asked for the /logs mount point on a mysql server to be doubled in size. What they didn't tell anyone is that they had already changed the settings in mysql for the logs.

@EddieJennings said in What Are You Doing Right Now:

Practicing installation of Red Hat Identity Manager.

Hrm, I think it's about time I poked at FreeIPA again.

As one of my co-workers quipped "They're not getting any malware now!"

@garak0410 said in Random Thread - Anything Goes:

How's everyone doing out there in Mango Land?

Sitting at work bored out of my mind. They dangled that 5% of billable hours logged when I was considering the job. Found out after I started that they really don't have the business to make any billable hours.

I've had to deal with the same sort of buildings before. The key will be to have a good site survey done ahead of time. If you end up needing an AP in every room, it's probably not worth it.

Just an educated guess here, but 2.4GHz will probably get halfway acceptable coverage without acceptable speed for the end users while 5GHz will likely not cover enough area to make it worth moving to entirely.

Just got done removing a cage section in the datacenter for an equipment move this morning.

Next up, new circuit turnups for customers.

That looks like a real pain to have tracked down!

@scottalanmiller said in What Are You Doing Right Now:

@GUIn00b said in What Are You Doing Right Now:

@scottalanmiller said in What Are You Doing Right Now:

@GUIn00b said in What Are You Doing Right Now:

Contemplating how to leverage 2 ISP's for supplemental bandwidth when needed using 2 separate routers that are both servicing the same LAN.

......So I'm gonna go post a new topic!

Saw the post. It's not a fun thing. What I did when I had this was I just separated things by machine. Some machines used one connection and some the other based on their workloads. It was "static" but let me use both.

You described basically what I want to do. For general user media consumption (YouTube, Facebook, Amazon shopping etc.) it can just be shipped out the Spectrum cable connection. But for my servers I more or less want those bound to the WAN with static IP. However, my static WAN has slower download speeds than the Spectrum cable. (Static WAN is 50Mbps up and down, Spectrum is 300Mbps down). So when it's time to do a giant update or download new ISOs or whatever, the 300Mbps makes a big difference in time spent waiting.

Separating things at each machine that needs the static WAN by giving them static DGW's is worthwhile for me, but it would be nice to have some load balancing intelligence happening so that large downloads come in through the fast pipe no matter the machine.

I've set up a LANcache for my Steam library which helps a lot for 130gig games and whatever. But when there's a 3-4gig update that isn't cached, the request is sent out the client machine's DGW. I think there's a way to do "Split Horizon" or something so I can setup a couple lists of domains that get allocated to one Gateway or another. Like one list of domain/hosts would be like the known Linux repo hosts would definitely be piped over to the fast download cable. But any requests for say some Linode hosted VPS's I'd want trafficked out the slower static pipe.

Yeah, I still haven't made a decision one way or the other and still have them operating with separate LAN's lol! Full disclosure, I enjoy the relationship between my a** and my couch way too much to be bothered. Potato chips not required but quite frequently present. That's just truly my happy place. So the idea of having to bend over to move a cable or something to get all this setup like I want is just a total buzzkill 99% of the time. But that's the key. 99% of the time. Not 100%. So.... someday. Someday....

Realistically for what you want to do you need a router that understands the traffic and is dividing it up. DNS or split horizon can't do the job. Dividing traffic along paths is actually quite difficult. Especially once you add encryption on the traffic.

That is the one and only reason VMWare bought Velocloud, and also the only reason to use their SD-WAN device. They can route traffic to different WAN connections based on pre-defined rules. You can have latency dependent streams (Zoom, SIP, etc) routed differently than "bulk" streams (Google Drive, Dropbox, etc).

Just hope you never have to contact support.

@Grey said in What Are You Doing Right Now:

@travisdh1 said in What Are You Doing Right Now:

Accepted a job offer this morning, so I'm back to work tomorrow.

Slight raise to base pay, but I'll also get 5% of my billable hours. So if I keep my billable hours up, a big raise.

Only downside is that it's on-site in downtown Cleveland.

Ohio? But, why, though?

I've lived here for 99% of my life, we're kind of stuck with the "golden handcuffs" of a 3% mortgage, but mostly because the wife doesn't want to leave the area.

Edit: Other conversations reminded me that I should mention one other aspect. I applied to many remote positions as well, but none of them made a job offer.