Category: Revelation

It’s here!

My “new” used 1U server is here. It’s a 1U VA Linux 1220 with two 1GHz Pentium IIIs, and 1Gb of RAM.
VA Linux 1220VA Linux 1220 (2)

It only has a 20Gb IDE drive, but I have a 250Gb IDE drive on order from NewEgg which should be here soon. (It also has a built in SCSI controller, if I ever decide I have more money than brains.) The built in CD-ROM doesn’t seem to work – the BIOS recognizes it, but it won’t boot from it. And after I installed using another CD-ROM (which doesn’t fit in the case properly), it won’t mount drives in the built-in CD-ROM. I’ve emailed the vendor asking if he can send me a working CD-ROM – I won’t write his feedback until that’s resolved. Another weird thing, it won’t boot if I have my KVM plugged into the USB port. But that’s not a great hardship.

It’s also really, really noisy. Can’t wait to send it off to a nice rack space somewhere.

I’ve got a Debian 3.1 base system installed on it already. Now to get Xen installed.

Leaf Peeping Flight

One of the things that Vicki and I have never done is go up and look at the fall colours from the air. Today was a wonderful day, severe clear and not very windy. The leaves aren’t at their peak yet, but we’re there, the plane is there, and we don’t have anything else to do. So when we got back from Buttonville and cleared customs, we headed off again.

I wanted to stay low to get a better view, unlike the flight across the lake, where we kept very high for a smoother ride and better glide distance while over the lake. That made it a bit bumpy. But not unbearably so.

We left Rochester airspace going south at 2500 feet. As soon as we got out of the airspace, I punched my user waypoint for the local wind farm into my GPS, and we headed out to look at the windmills. Not only are the windmills scenic themselves, but they’re near a nice valley. That was good. Then I headed towards Letchworth Canyon and cruised along it down to the famous Upper and Lower Falls and railway trestle.

After that, we cruised back up the canyon in the other direction. Then Vicki had a nifty idea – to go fly over our house. The Rochester airport hadn’t been too busy when we’d come in – they’d cleared me to land while I was still 15 miles out. So I figured what the hell, I’ll ask for it.

First thing is to try to find something that the controller would recognize. I zoomed in the hand-held GPS to try to find a waypoint near our house – I had an idea that we were near the outer marker for the ILS 28 approach. But I couldn’t find anything. So I told him that we weren’t too far south of the southern tip of the Irondequoit Bay – I figured they’d know where where that is because of the seaplane operations there. The controller approved our request, so I descended to pattern altitude, because I knew it would put us below where the airplanes on ILS 28 would be at that point. Vicki spotted our house, and I did a steep turn around it so we could get a good view. After our turn, I thanked Rochester Approach and they cleared me for a straight in to runway 25.

That was really nice. I hope we can do that again some time.

The perils of not checking NOTAMS

I’m in Whitby at my Dad’s place today. Because of customs, we flew to Buttonville. But then when I told the FBO guy “oh we’re not staying – as soon as we clear customs we’re heading to Oshawa” he just laughed. Evidently I carefully flight planned the trip to Buttonville, but hadn’t even looked at NOTAMs for Oshawa.

Oshawa is closed for three weeks, because they’re repaving both runways. God only knows why they couldn’t stagger them. Hey, oshawapilot, why didn’t you mention this?

Is “Redirect permanent” (301) really that hard to parse?

I just moved my blog from http://xcski.com/blogs/pt/ to https://blog.xcski.com/. I set up a “Redirect permanent” on the old location, so that anybody or anything using the old location will get automatically redirected to the new location. And for a lot of places that used to hit my blog at the old site (like rss feeders) seem to have handled the transition painlessly. For instance, NetNewsWireLite, which I use on my laptop, updated the subscription information and doesn’t appear to hit the old URL at all any more. Same with the LiveJouranl syndication.

But for some reason, a lot of them haven’t handled it correctly. For one thing, my spam load is down to almost nothing. Ok, that’s a good thing. But I also notice that some RSS feeders, like various “Planet” web sites, see a redirection from http://xcski.com/blogs/pt/feed to https://blog.xcski.com/feed, and feel like they can ignore the fact that the hostname part of the URL is different, and try to fetch the redirection at http://xcski.com/feed, which of course isn’t a valid URL. It can’t be that they have an old DNS cache entry for blog.xcski.com – it didn’t exist until a few days ago. It must be that they’re trying to be too clever, or not clever enough.

Colocation

I’ve decided to go for it.

I’m currently paying about $30 a month for a Virtual Private Server at linode.com. For that $30 a month I get the equivalent of 150Mb of RAM, 4Gb of disk, and a static IP that isn’t on any black lists. I’m guaranteed at least the equivalent of a 150MHz, but up to the maximum of the actual CPU on the machine, which is dual 3.2GHz Xeons.

The applications I run on there, particularly the Waypoint Database Generator, are severely limited by the memory limitations. I don’t come close to using all the bandwidth, and I’m not usually CPU bound. But as soon as that generator starts the memory swapping, it would use up all my io_tokens, and then the application would get i/o bound. The situation was totally untenable until somebody on linode started running a MySQL server and allowed me to use it. But I don’t like relying on this service that might go away at any time.

I’ve discovered that for about a hundred dollars a month, I can put a 1U server on a local colocation service. By going the colocation route, I can put in as much memory and disk space as I want. I still get the other advantages of the linode, such as a static IP and better bandwidth to the rest of the internet. The extra disk and memory means that I can run my own database server without getting swap and i/o bound. It also means I can move some of the disk hungry stuff like my Gallery server and this blog to it.

Yeah, it’s more expensive, but what I’m planning to do is set up the system with Xen. Then I can divide the box up into multiple virtual machines and sell shares. I’m hoping I can sell one share to start, and maybe another later on.

I’ve been perusing eBay, and it appears that $300 or so should get me a machine with 2x1GHz processors, 1Gb of RAM, and no hard drive. Another $125 or so for a 250Gb drive for the machine and another 250Gb drive to keep at home as a spare. Since the colocation site is here in town, I don’t need the ultra-reliability of the latest servers, RAID arrays, redundant power supplies, etc.

Ok, so I have to buy this machine, build it, and start setting up Xen. Then get my applications working on it. I’m also going to move this blog to “blog.xcski.com” and the gallery to “gallery.xcski.com” to facilitate moving them to the colo.