@brandon220 said in How to take advantage of virtualization. Major products get updated:

I plan on setting this up in the lab soon. dm-cache also sounds interesting. I've never touched software RAID because 95% of my environment has been MS for a long time. Always have gone the hw raid route.

https://www.redhat.com/en/blog/improving-read-performance-dm-cache

Redhat did some testing with an SSD but it looks ugly. 5 passes and no performance improvement using a SSD. I suspect they are hamstrung by the patent minefield that is ARC (IBM of all people has this patent BTW) and the subsidiary cool optimizations that have been made to it (ARC was intended for CPU cache originally, your storage fun fact of the day!). Also I suspect the IO path on this thing isn't the cleanest. Looks like the Linux kernel file cache is going to be faster which if I"m using that I might as well just give memory to the guest and let it sort it out (especially with the lack of dedupe or single instancing of this cache).

If your looking to speed stuff up I say get "the good stuff".

We got some PMEM DIMMS in the lab, and this stuff is face melting fast. You can "bolt" it on with a DAX file system, but the best way to use it is with applications that have been redesigned to support it. We forked REDIS to support this and got latency 12x better than using local NVMe drives, and 2.8x better tha DAX.
Oracle had 57x better operational latency.
0_1534916586664_Redis.PNG
0_1534916590424_Oracle.PNG

Interesting read. I hope I never need to use it. Though, I would rather have it and not need it...

@obsolesce said in Linux-based StarWind VSAN: hardware-agnostic, minimalistic, and FREE SDS:

@travisdh1 said in Linux-based StarWind VSAN: hardware-agnostic, minimalistic, and FREE SDS:

@obsolesce said in Linux-based StarWind VSAN: hardware-agnostic, minimalistic, and FREE SDS:

Is this tied together with VMWare? I thought this was going to be usable on Fedora, for example.

If the Starwind software is running on Linux, the hypervisor shouldn't matter. You'll be able to mount the share Starwind it's exporting on XenServer or KVM just as well, but well all the experts just in case. @KOOLER @Oksana

I'm asking because Linux and SW vSAN are worded everywhere as if it's 100% tied to VMWare, with no other use case. I can't imagine that being the case, but am asking to make sure... perhaps it's worded like that because it's written by a VMWare Architect trying to boast and sell VMWare. Just wondering, because I was under the impression you can use it how you want, not just with VMWare.

I agree with you, seems like bad marketing. I’ll be interestes in using it with KVM, for example. I thing it will just export iSCSI.

Here's some more.

https://twitter.com/jhuntervmware/status/999353855111507968?s=21

@jaredbusch said in Ubuntu Set Default Resolution Through GRUB for VM:

@scottalanmiller said in Ubuntu Set Default Resolution Through GRUB for VM:

@aaronstuder said in Ubuntu Set Default Resolution Through GRUB for VM:

@scottalanmiller Ubuntu is a surprising choice for you 😉

Runs ScreenConnect.

So does Fedora.

Always fail when I do it, there is some trick to it. Happen to know what's needed so that it doesn't just put hashes on the screen for forever?

@jblaze said in Latency with VDI in VMware View 7 environment:

I'm new to VDIs so not entirely sure if I'm asking the right questions. The server is hosted externally by our MSP and they're trying to determine what the cause is.

That it is external alone is almost certainly the problem. VDI can work remotely, but is often relatively painful. Also, be aware, while there is some extreme edge cases where you can do hosted VDI, this has traditionally not been allowed and unless your MSP has figured out some extremely new and rare licensing with Microsoft, those VDIs aren't legal.

@hobbit666 said in VMware vSphere 6.7 Released:

@scottalanmiller then you're missing some of the page. I see Dell and HPE custom images then under that there is a link to a keygen
0_1524722981882_Screenshot_20180426-070923.png

Ah ha, either I didn't go down that far or just didn't see it. I looked all over for that somewhere. Yes, those look like key gens, then.

If you don't have an environment big enough to produce metrics exceeding millions of points per second, what are the benefits of using Wavefront over another solution such as Splunk, Zabbix, PRTG, etc.?