Need to Improve Disk Utilization on XenServer 7.2
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@krisleslie said in Need to Improve Disk Utilization on XenServer 7.2:
I guess looking at it from a different perspective, I would find little need for many small companies to ever want to go past 4 SSD's with RAID 10.
Why do we keep mentioning SSD in RAID 10. Don't even look at that. Three SSD in RAID 5.
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Little value I think, but the NVR still needs to be tuned. We keep running into errors but it seems that UBNT NVR is a ram hog, so in theory just slapping an additional 16 GB of RAM to it will make it perform better. We have about 3-4 people simultaneously getting into the system. It's but with 4 cores, 16 GB RAM, 1 TB of space. I find we are just at 500 GB of space of usage.
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@krisleslie said in Need to Improve Disk Utilization on XenServer 7.2:
Little value I think, but the NVR still needs to be tuned.
SSDs don't need to be tuned here. It's like talking about how you have to tune your muscle car, but then deciding to get a rocket itself. But then feeling like you need to "tweak" the rocket, even though a minute ago a muscle car was going to do the job.
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Scott I think many of us have it implanted in our head with spinning rust to continue to use RAID 10 as it felt the most safe and easy to scale
Honestly, I'm still trying to debate if RAID 5 is worth it vs RAID 1 with SSD's in mind. It's an extra cost, what benefit does it bring? I've only had to deal with RAID 5 on my old server, and I nuked it and never looked back, went with RAID 10 on spinning rust.
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@krisleslie said in Need to Improve Disk Utilization on XenServer 7.2:
Honestly, I'm still trying to debate if RAID 5 is worth it vs RAID 1 with SSD's in mind.
If you don't need the capacity, then no, stick with RAID 1.
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@krisleslie said in Need to Improve Disk Utilization on XenServer 7.2:
I've only had to deal with RAID 5 on my old server, and I nuked it and never looked back, went with RAID 10 on spinning rust.
Yes, but since none of the RAID 5 issues from that era exist with SSDs, that doesn't apply here.
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@scottalanmiller said in Need to Improve Disk Utilization on XenServer 7.2:
@brrabill said in Need to Improve Disk Utilization on XenServer 7.2:
@scottalanmiller said
You can also install the GUI on the server and have local management tools. Obviously managing purely remotely is better. But as this is a desktop anyway, local management tools are not out of the question and you can switch later once you are comfortable with it. There is no lock in to your GUI or tools choices like with Hyper-V.
"Obviously"
Hey do you consider cockpit a GUI?
Yes, do you consider it local?
I don't consider it a GUI like the traditional GUI that sits on the physical box, aka CInnamon or Windows.
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Scott how will the migration from XenServer to KVM go?
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@brrabill said in Need to Improve Disk Utilization on XenServer 7.2:
@scottalanmiller said in Need to Improve Disk Utilization on XenServer 7.2:
@brrabill said in Need to Improve Disk Utilization on XenServer 7.2:
@scottalanmiller said
You can also install the GUI on the server and have local management tools. Obviously managing purely remotely is better. But as this is a desktop anyway, local management tools are not out of the question and you can switch later once you are comfortable with it. There is no lock in to your GUI or tools choices like with Hyper-V.
"Obviously"
Hey do you consider cockpit a GUI?
Yes, do you consider it local?
I don't consider it a GUI like the traditional GUI that sits on the physical box, aka CInnamon or Windows.
But do you consider it local? You asked me if it was considered a GUI (by me), I presume because I mentioned that you don't want a local GUI.
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@krisleslie said in Need to Improve Disk Utilization on XenServer 7.2:
Scott how will the migration from XenServer to KVM go?
I've not done it. We rarely migrate, we build new. We are a DevOps shop, there is no reason to ever migrate in the modern DevOps world.
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@scottalanmiller said in Need to Improve Disk Utilization on XenServer 7.2:
@brrabill said in Need to Improve Disk Utilization on XenServer 7.2:
@scottalanmiller said in Need to Improve Disk Utilization on XenServer 7.2:
@brrabill said in Need to Improve Disk Utilization on XenServer 7.2:
@scottalanmiller said
You can also install the GUI on the server and have local management tools. Obviously managing purely remotely is better. But as this is a desktop anyway, local management tools are not out of the question and you can switch later once you are comfortable with it. There is no lock in to your GUI or tools choices like with Hyper-V.
"Obviously"
Hey do you consider cockpit a GUI?
Yes, do you consider it local?
I don't consider it a GUI like the traditional GUI that sits on the physical box, aka CInnamon or Windows.
But do you consider it local? You asked me if it was considered a GUI (by me), I presume because I mentioned that you don't want a local GUI.
No I am just wondering if someone said "I installed the GUI for FEdora server" if you would think they were talking about cockpit.
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@brrabill said in Need to Improve Disk Utilization on XenServer 7.2:
@scottalanmiller said in Need to Improve Disk Utilization on XenServer 7.2:
@brrabill said in Need to Improve Disk Utilization on XenServer 7.2:
@scottalanmiller said in Need to Improve Disk Utilization on XenServer 7.2:
@brrabill said in Need to Improve Disk Utilization on XenServer 7.2:
@scottalanmiller said
You can also install the GUI on the server and have local management tools. Obviously managing purely remotely is better. But as this is a desktop anyway, local management tools are not out of the question and you can switch later once you are comfortable with it. There is no lock in to your GUI or tools choices like with Hyper-V.
"Obviously"
Hey do you consider cockpit a GUI?
Yes, do you consider it local?
I don't consider it a GUI like the traditional GUI that sits on the physical box, aka CInnamon or Windows.
But do you consider it local? You asked me if it was considered a GUI (by me), I presume because I mentioned that you don't want a local GUI.
No I am just wondering if someone said "I installed the GUI for FEdora server" if you would think they were talking about cockpit.
Most people mean the desktop GUI, so that you can hook up a monitor. Cockpit cant be used on a local monitor without another GUI existing that is local. But that's not what you asked me.
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@brrabill
I'm doing my research to get on KVM. I might go with Ubuntu for my home use. I'm still semi-noob. -
@krisleslie said in Need to Improve Disk Utilization on XenServer 7.2:
@brrabill
I'm doing my research to get on KVM. I might go with Ubuntu for my home use. I'm still semi-noob.Avoid using Ubuntu. It's unnecessarily complex. Stick with Fedora, keep things simple.
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You start playing with Ubuntu, and the next thing you know you get sucked into thinking two year old LTS releases are acceptable to deploy in production.
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The one place that Ubuntu really rocks is if you are builing an LXC/LXD host.
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@scottalanmiller said in Need to Improve Disk Utilization on XenServer 7.2:
You start playing with Ubuntu, and the next thing you know you get sucked into thinking two year old LTS releases are acceptable to deploy in production.
Would you say same thing if some uses CentOS since it’s pretty much a LTS compared to using Fedora?
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@black3dynamite said in Need to Improve Disk Utilization on XenServer 7.2:
@scottalanmiller said in Need to Improve Disk Utilization on XenServer 7.2:
You start playing with Ubuntu, and the next thing you know you get sucked into thinking two year old LTS releases are acceptable to deploy in production.
Would you say same thing if some uses CentOS since it’s pretty much a LTS compared to using Fedora?
Yes, but there is less confusion around it due to the greater education and professional nature of the community. But it is exactly the same and why I've been talking so heavily about why it is time to abandon both.
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@krisleslie said in Need to Improve Disk Utilization on XenServer 7.2:
Scott I think many of us have it implanted in our head with spinning rust to continue to use RAID 10 as it felt the most safe and easy to scale
Honestly, I'm still trying to debate if RAID 5 is worth it vs RAID 1 with SSD's in mind. It's an extra cost, what benefit does it bring? I've only had to deal with RAID 5 on my old server, and I nuked it and never looked back, went with RAID 10 on spinning rust.
The question is - why did you nuke the RAID 5? Why did you move to RAID 10 instead of RAID 6? These questions are what can easily lead you to using RAID 5 on SSD instead of RAID 10.
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@scottalanmiller said in Need to Improve Disk Utilization on XenServer 7.2:
@black3dynamite said in Need to Improve Disk Utilization on XenServer 7.2:
@scottalanmiller said in Need to Improve Disk Utilization on XenServer 7.2:
You start playing with Ubuntu, and the next thing you know you get sucked into thinking two year old LTS releases are acceptable to deploy in production.
Would you say same thing if some uses CentOS since it’s pretty much a LTS compared to using Fedora?
Yes, but there is less confusion around it due to the greater education and professional nature of the community. But it is exactly the same and why I've been talking so heavily about why it is time to abandon both.
So you are now saying abandon CentOS as well?
