So I was able to make another array, and was also able to make an SR on that array. It's still strange that I'm not able to use thin provisioning by default on install, but for now, it's working.

@scottalanmiller said in XenServer Host to Host Migration Questions:

nciple, but I find it getting harder to do conside

Well since this will be my first venture into using a video server, not sure how much system to give something like that.

@KOOLER said in The SMB Two Server Dilema, What to Do:

@whizzard said in The SMB Two Server Dilema, What to Do:

In scenarios such as these what would be the recommended backup approach: DAS, NAS, Backup Appliance, lower end server, removable disk storage, tapes (intentionally left out cloud)?

Should be separate (physically!) entity non-related to your production cluster. Cheap NAS is OK.

For the average scenario (and I really just mean average) it's Synology or ReadyNAS that I recommend. Easy, supported, cost effective, desktop or rackmount options, well known, good brands, nice features.

@olivier NP... I know it's isn't within your control. 🙂

@r0dISK said in I did a thing, have a quick Linux question:

22TB ? mdadm + RAID6...

That's a lot to have under RAID 6, but for a home lab is fine.

And VMware marketing in 3...2....1....

Brilliant Read, I've used Esxi and Hyper-V, good products, but I do have a inner love for Xencenter..

@Dashrender said in There has to be a better way:

@scottalanmiller said in There has to be a better way:

@coliver said in There has to be a better way:

@DustinB3403 said in There has to be a better way:

@coliver said in There has to be a better way:

@Dashrender said in There has to be a better way:

@scottalanmiller said in There has to be a better way:

@DustinB3403 said in There has to be a better way:

Does the VM I want to work from need to be offline?

When attaching the disk? yes.

why? You can add new disks to VMWare while a VM is running without any issues. I'm pretty sure you can attach a pre-existing partition as well.

You can do the same in XenServer. At least with Windows as the guest. I haven't tried it with Linux.

You can't however do this if the source drive is running on a separate VM. (That VM must be powered off).

Which is what I did in order to do this.

Right, unless you unmount the source drive first. I don't even think VMWare can reliably do this.

VMware can do it reliably on its side, but it would still hose the data inside the drive.

Right, unless it's a cluster aware OS and Filesystem.

Just cluster aware filesystem. GFS2, OCFS, VxFS would all work fine.

@dafyre said in Linux: The Role of DRBD:

@scottalanmiller said in Linux: The Role of DRBD:

I added a header into the main topic list for that. But it is going to be later in the Advanced Topics, section. Oddly, I know of pretty much no standard Linux Administration tomes that cover DRBD. It's so core, very odd that it so often gets missed.

Could it be that most Linux Admin's don't know about it until they go searching for it? ...That's how I found out about it.

You would hope that the people writing the books would know, though!

Xen XAPI api is not running on this .... F8 to try and start it.

So I cloned on a system that isn't critical, and when I try to boot off of the clone that is what I get.

Any ideas?

Getting lots of eyes on this thread today. Very interesting.

@scottalanmiller said:

@johnhooks said:

How secure is running a DE in the Dom0 though?

Are they running it there?

Ya.

Dom0 is sort of a system domain separate from the default domains and any other domains you create. The desktop manager runs in this domain. Your login credentials reside there. Much like a super domain, Dom0 is more trusted than any other domain.

It provides just two functions: It runs the window manager and the desktop manager.

@DustinB3403 said:

Can I just plug this bootable into any old desktop and see if it'll light up? Should I expect any issues?

Can you, yes 🙂 It won't damage anything. Will it work? Not likely. You can't do this with any other OS or hypervisor, you can't do it with Xen either. That's why Xen has to be installed rather than there just being an image that you run. The installation process is the process of customizing it for your hardware.

@scottalanmiller said

Yes, it should boot up just fine.

Why do I get the feeling no one has ever tested this, haha.

@scottalanmiller

@scottalanmiller said:

We need some latency numbers from around the world. Anyone want to collect some for us?

Here is the first IP address. A long running ping (hundreds or thousands of pings) would be good, we need the final stats from that:

104.236.119.59 108.61.151.173 172.99.75.133

We have a good idea on bandwidth, IO, CPU and memory. Network latency is pretty huge.

1,200,000 packets later...
via rackspace 8 GB General Purpose v1 based in london

--- 162.242.243.171 ping statistics --- 400510 packets transmitted, 400499 received, 0% packet loss, time 400849652ms rtt min/avg/max/mdev = 79.018/79.634/184.775/2.778 ms --- 104.236.119.59 ping statistics --- 400759 packets transmitted, 400732 received, 0% packet loss, time 401132556ms rtt min/avg/max/mdev = 73.663/74.533/191.571/2.203 ms --- 108.61.151.173 ping statistics --- 400765 packets transmitted, 400749 received, 0% packet loss, time 401117767ms rtt min/avg/max/mdev = 69.861/75.792/205.164/3.167 ms

@Dashrender said:

Yep, that's why it's currently not a real concern.

And only certain Intel CPUs. AMD users are in the clear right now.

@Dashrender said:

What are/were the limitations of free version? I have forgotten.

1TB of storage. I think that's counting amount of protected storage, but it's been long enough I forget for sure.

Edit: Works real well for me here, adding servers and services as I set them up. We've been using crashplan for file level storage for a long time, so I don't have much being pulled in by Unitrends currently.

@it-admin 4 years later, I encountered the same issue that you did.

The solution for me was do do a PCI passthrough of the physical NIC directly to the VM. This bypasses all virtual switching inside Citrix Hypervisor. I posted the exact steps to implement PCI passthrough on Citrix Hypervisor 8.2 here:

https://discussions.citrix.com/topic/414458-open-vswitch-not-passing-all-traffic-from-pif-to-vif/