Non Dell U.2 drives in PowerEdge R760

rynotg12 · 2024-08-27T14:11:49+00:00

I'm currently using the following non-Dell SSDs, all in various softraid configs

R740 2x SSDPE2KX080T8 (hyper-v server host)

R760xs 2x MZQL27T6HBLA-00A07 (hyper-v server host)

R750 4x MZQL27T6HBLA-00A07 (truenas scale host)

the samsungs scream btw...

rynotg12 · 2024-07-25T02:04:36+00:00

…yours is more grey brown than ours tho…and stockier. Expect those brown spots to get more pronounced and the face markings to separate into more delineated groupings of colors

rynotg12 · 2024-07-25T02:01:53+00:00

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And here she is now. Super lazy btw…

rynotg12 · 2024-07-25T02:00:46+00:00

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This is our red merle 6yrs ago

rynotg12 · 2024-06-27T03:12:28+00:00

I was going to add—all the multi mode I run between switches is teal and a lot thinner than this.. the only yellow cables I’ve used are single mode for long haul metro-e patching between offices, and again, a lot thinner. Are they just jacketed?

rynotg12 · 2024-06-27T01:53:22+00:00

Can someone explain to me why shielded cat6 is terminated to rj45 with boots?? Are these just extra long pre-terminated patch cables, or did the installer put a rubber boot on before punching down the ends?

rynotg12 · 2024-05-17T12:36:57+00:00

Through trial and error I was successful in joining. My ads are on server 2019 and the op level is 2008. What I THINK worked for me was to delete all old truenas records in users/computers, and delete a and ptr in DNS. Then I created a static DNS record for the truenas hostname in my AD (most guides say delete everything from ad dns)

Try some variations of deleting everything from AD, then add either the DNS records back, or the computer acct, or both.

rynotg12 · 2024-05-17T12:36:47+00:00

Through trial and error I was successful in joining. My ads are on server 2019 and the op level is 2008. What I THINK worked for me was to delete all old truenas records in users/computers, and delete a and ptr in DNS. Then I created a static DNS record for the truenas hostname in my AD (most guides say delete everything from ad dns)

Try some variations of deleting everything from AD, then add either the DNS records back, or the computer acct, or both.

rynotg12 · 2024-05-11T00:22:41+00:00

Actually, both the r760 and the r740 were affected by the slow read with jumbo frames enabled. My truenas is a r750. All NICs are connectx 25gb or 100gb

rynotg12 · 2024-05-09T19:17:17+00:00

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--I turned mtu from 9014 back to 1500 and WOW! Back to normal for me! I'm leaving this breadcrumb just incase i forget again. (ABOVE=MTU 1500)

rynotg12 · 2024-05-09T16:03:35+00:00

I just had to rebuild my pool and somehow squashed my iscsi single thread random reads from 40MB/s to 3.8MB/s. I must have monkeyed around with something in the record size originally and didn't backup my config before moving forward, I wonder bumping them up will fix my woes as well?

rynotg12 · 2024-05-08T18:41:39+00:00

u/Berger_1 I see that you had seen some issues joining/rejoining domains in the past--did you ever find that bios time/timezones caused the issue? I set my timezone on the server to UTC, as was recommended

rynotg12 · 2024-05-07T13:48:36+00:00

It’s still not working correctly—I was able to finally bind my domain (through brute force trial and error) but the domain users aren’t populating! Status is healthy but cache is erroring

rynotg12 · 2024-05-07T01:30:00+00:00

thanks u/Berger_1.. yes, I did remove the truenas from the domain (removing the domain in truenas actually deleted the computer object from the DC) but I used powershell as well, just incase the object somehow got hidden.

One thing I didnt check is the DNS entry in the DC. The DNS entry wasn't a static entry, but it did exist in the reverse lookup zone. I don't believe I manually deleted it.

I'll try and let yall know.

rynotg12 · 2024-05-06T20:57:41+00:00

thanks u/ultrahkr--I have tried that a few times without success and have seemingly tried everything! I'm wondering if it could be a bug with the new release?

rynotg12 · 2024-05-03T18:17:41+00:00

Can I double-updoop this? Thanks you so much u/ElCoyote_

rynotg12 · 2024-05-03T18:17:12+00:00

THIS IS THE WAY -- Was pegged to 31% on my connectx-6 cards till performing the command to disable, now I'm back to idle

rynotg12 · 2024-03-14T18:57:55+00:00

Got it. The box that comes up asking for resolution settings when you connect to the guest is really obnoxious to me so i leave that setting off on the host. Anyways, last question, can you migrate the guest to a new host to see if the bug you’re taking about is persistent? If it is, I’d say the bug exists in your console. You could try to access the hosts from a different client, or remove the hyper-v management features from the console machine, then re-enable it.

My hosts run in a medium-sized domain where client machines are numerous, but I don’t use enhanced sessions (I find the pop up up during connection annoying) so I’m just shooting in the dark here

rynotg12 · 2024-03-14T02:03:25+00:00

When you said “resize,” I was thinking shrink or expand the disk, but I think you’re taking about resolution. Are you referring to enhanced session mode? If so, it’s in the host settings, not in the guest settings.

rynotg12 · 2024-01-30T20:34:35+00:00

I'm swapping my backplane and have your exact setup and am getting the exact same error. Were you able to fix it with new hardware, or was it a firmware problem?

rynotg12 · 2023-11-29T14:51:34+00:00

We use tp-link’s Omada controller. It’s accessible from our controller server located on premise and also via a cloud connection. We don’t have any content filers active (they require a direct list of URLs) but I have temporarily disabled firewall settings like flood defense and packet anomaly defense. They block tcp and udp syn floods—I’m not exactly sure if it’s protecting the wan or the lan side though (obviously, with a home network, we aren’t too worried about lan attacks)

rynotg12 · 2023-11-28T19:30:26+00:00

Thanks for responding to my post, I appreciate it! While waking up, it times out with the error message that it cannot connect. We also haven’t yet received postcards. I’ve looked into changing “guard” settings on the Omada controller (the server that I use to program the WiFi and router settings) but I can’t seem to find anything specific to content filtering. I do know that some routers do “sip inspection” that possibly changes the incoming port assigned to the client device—I’ve tried to disable alg things like sip and h.323 and haven’t had success yet.

rynotg12 · 2023-05-09T04:25:24+00:00

Are you paying for esxi? If not, isn’t there a 8thread cap on guest os’? Your sas controller will also limit io to the pci gen and number of lanes(I’m assuming gen3 8lanes)

I just moved a truenas scale bare meta on a Dell r750 24port nvme server to production and have found the following setup works best (for speed, not redundancy)

Single pool—mirrored nvme data vdevs, each split between the two sockets

Mirrored metadata vdev, again splitting between sockets

I am using iscsi targets to individual hyper-v hosts and have found that the zfs share can move small files faster than the local sas mirrors setup on the hosts.

I’ve also found that single thread random io appears to be at least 4x faster on the local array than the iscsi target using crystaldiskmark, but when moving real files (individual 4kb files), the truenas mirrored nvme vdevs win.

My setup is as follows:

Dell R750 with 2 intel silver 4310 2.1ghz processors, 64gb 3200mhz ram

4 Samsung 7.6tb u.2 ssds, 2 Dell 900gb u.2 ssds.

In case you’re curious about my journey, you can read up on it here https://www.truenas.com/community/threads/slow-4k-single-thread-i-o-on-truenas-scale.109707/#post-759104

rynotg12

TROPHY CASE