Intro My friends will tell you that I’m obsessed with redundancy, both in life and in I.T. At home I have two main internet connections, via Altice Optimum (“cable”) and Verizon FiOS. They’re both relatively high bandwidth, and are connected to my two core routers that operate in an active/passive...
RAID HDD TCO Calculator (Total Cost of Ownership)
A while back I created a HDD TCO worksheet showing the relative costs of certain drives in no real context. This spreadsheet aims to calculate the total cost of ownership for a RAID array, which is a much more involved affair. https://docs.google.com/spreadsheets/d/1dM2vO08gmX3VwYyJtTE5D1Gu75TTU-nUW95j1_DVx8c/ That’s a read-only version, but you can easily...
Yes, the Dell Compellent SC220 Chassis AND Drives are Generic!
I found a great deal on eBay. A Dell Compellent SC220 chassis filled with 24 x 600GB 10K SAS disks for $350 including shipping. Obviously if you’re reading this years later that will seem like a terrible price, but as of now 600GB SAS drives are selling for about $30...
myisamchk If you’re reading this, it’s probably because you’re trying to run myisamchk on a large table and you want to set the --sort_buffer_size to some large value. That’s advisable, of course. However, it seems that some versions of MySQL don’t understand a 2-digit value for that parameter. I was...
An Open Letter to Amazon and Netflix
Dear “New Media” Companies, Two years ago I decided to take the plunge and purchase a UHD TV. But I thought twice about it, deciding that I would hold off until there was adequate 4K content available. At that time the 4K market was weak. UHD Blu-rays had yet to...
Intro My friends will tell you that I’m obsessed with redundancy, both in life and in I.T. At home I have two main internet connections, via Altice Optimum (“cable”) and Verizon FiOS. They’re both relatively high bandwidth, and are connected to my two core routers that operate in an active/passive configuration. Basically this: O——O +——–+ / \ | |————/ O +——————+——————–| Core | / / | Optimum Router | | Router |———-O / +——————+\ ______________| 01 | \ O \ / | |————O \ \ / +——–+ / \ X Keepalived | / Various O / \ Heartbeat | O Networks / / \ +——–+ \ O +——————+/ \_____________| |———–\ \ | FiOS Router | | Core | \ O … Continue reading
A while back I created a HDD TCO worksheet showing the relative costs of certain drives in no real context. This spreadsheet aims to calculate the total cost of ownership for a RAID array, which is a much more involved affair. https://docs.google.com/spreadsheets/d/1dM2vO08gmX3VwYyJtTE5D1Gu75TTU-nUW95j1_DVx8c/ That’s a read-only version, but you can easily make your own copy to play with: If you have a Google account and are logged in, you can just hit File -> Make a Copy.. to save it to your own Google Drive. If you hate Google sniffing into your private affairs, you can hit File -> Download As and grab a copy in the format of your choice. I hope I’ve provided enough of an explanation as to … Continue reading
I found a great deal on eBay. A Dell Compellent SC220 chassis filled with 24 x 600GB 10K SAS disks for $350 including shipping. Obviously if you’re reading this years later that will seem like a terrible price, but as of now 600GB SAS drives are selling for about $30 each (used). So it’s roughly $720 worth of drives alone. The SC220 is basically an MD1220 in sheep’s clothing (though sheep are generally naked so who knows), and those are selling for about $120. Like I said, a great deal! But there was one question that needed answering: Did the Dell-branded Compellent HDDs have some kind of special firmware that rendered them useless with a standard RAID or JBOD controller? … Continue reading
myisamchk If you’re reading this, it’s probably because you’re trying to run myisamchk on a large table and you want to set the –sort_buffer_size to some large value. That’s advisable, of course. However, it seems that some versions of MySQL don’t understand a 2-digit value for that parameter. I was trying to do the following: myisamchk -f -r –update-state –key_buffer_size=4G –sort_buffer_size=16G –read_buffer_size=32M –write_buffer_size=32M /var/sql/myisam-temp/mastersitedb/applicants_master_search – recovering (with sort) MyISAM-table ‘/var/sql/myisam-temp/mastersitedb/applicants_master_search’ Data records: 0 – Fixing index 1 myisamchk: error: myisam_sort_buffer_size is too small MyISAM-table ‘/var/sql/myisam-temp/mastersitedb/applicants_master_search’ is not fixed because of errors Try fixing it by using the –safe-recover (-o), the –force (-f) option or by not using the –quick (-q) flag If you’re getting an error like that, try using … Continue reading
Dear “New Media” Companies, Two years ago I decided to take the plunge and purchase a UHD TV. But I thought twice about it, deciding that I would hold off until there was adequate 4K content available. At that time the 4K market was weak. UHD Blu-rays had yet to be released, and other than some YouTube content and perhaps a few shows from your companies, there wasn’t much available. Finally at the cusp of 2018 I decided to make the move. There’s much streaming media currently available in UHD (as you’re obviously aware), as well as a plethora of UHD Blu-rays. So I now have a very nice Sony OLED hooked up to my HTPC. But the sad part … Continue reading
Atypical Post This post isn’t only for you, but also for me. I have roughly sixteen 120V 1300-1500VA UPSes in my basement of various ages. They each take two SLA 12V ~8Ah batteries. As such, I need to replace those batteries periodically. Being a cheap bastard, I don’t buy the branded APC or CyberPower packs, but go for inexpensive generics from eBay or Amazon. In theory there’s no difference, but in practice some cheap batteries are, well, cheap. I’m attempting to figure out which off-brand brands work best. This Log Hence I’m going to start logging battery replacements to get an idea of which brand(s) represent the best value and longevity. This will always be a work in progress, because … Continue reading
The Echo Look I’m working on a full review-type-thing of the Look, but who really cares about that? I’m sure people will want to see the insides of it, though. The most interesting two things on it are an Intel RealSense SR300 module (minus its visible light camera), and what’s basically a full Intel PC motherboard. In fact, here are the main specs: Intel Atom x5-Z8350 (SR2KT) @ 1.44Ghz (1.91Ghz burst) 8GB Samsung eMMC Flash NAND Storage 8GB Elpida LPDDR3 RAM Broadcom 802.11ac + 802.11b/g/a/n + Bluetooth (Not sure of the version) The hardware is fantastically made and well put together, and overall is very clever considering they stuffed all of it into a diminutive cylinder! The Reassembly I did … Continue reading
ZeroFiller (for Windows!) This might be a relatively niche utility, but I figured I’d share it because it might help someone in the same situation. File Version Description ZeroFiller-v0.8-20171023.zip v0.8a2017-10-23 The ZeroFiller executable only (requires .NET 4.5.2) ZeroFiller-src-0.8a-20171023.zip v0.8a2017-10-23 The ZeroFiller source code (requires >= Visual Studio 2017, probably) Backups I run a lot of VMs and I’m a bit obsessed with backups. I do high-level backups (meaning files, DB data, configs, etc.), as well as low-level backups of the actual VM disk images. The raw virtual disks get snapshotted on the host system, then the snapshot’s raw data is backed up using dd, gzip, and rsync. It’s not fancy, and it basically grabs the machine in a crashed state … Continue reading
Welp, they’ve done it again. Any by “they”, I mean people that make poor quality electrical devices. Specifically Yellow Jacket, which is a Woods brand, which is a Coleman Cable brand, which is probably somehow owned by either Warren Buffet or the Koch Brothers.
I got this for $16.22 during an Amazon lighting deal, and even though that’s not a terrible price, the poor quality construction and the basic lie about the materials is what really angers me.
Join me as I disassemble and then curse at this poor excuse for a power strip, in my newest installment of first world problems.
First World Problems I gotta start off by saying that I know that this is an extravagant waste of time and resources. I didn’t make this video because the K575 was slightly annoying, but rather because it baffles me that they became worse at designing coffee machines than before. It’s doubly confounding because Keurig has based their marketing on the K575 being a “2.0” brewer. As in a (supposedly) new-and-improved follow-up to their original line. Yes, it has a couple of advantages over the older B70 Platinum that I used for comparison. However, it seems that they increased the features without increasing the cost. That says to me that they designed these new brewers on a budget. A schizophrenic software … Continue reading
It’s both easy to explain: It’s a costume-party-road-trip-photo-hunt-food-fight.
And it’s rather hard to explain: You form a team, rent a car, buy some eggs, decorate the car, decorate yourselves, and then follow vague clues through random parts of the southwest for 12 to 18 hours. I guess it’s not hard to explain. But it’s hard to put into words why it’s such a damn good idea.
One thing is for certain: It’s nothing like real life.
Anyone can do this. The more people, the more fun it becomes.Sign up now (unless you’re an asshole). If “YOLO” could ever be used for a substantial purpose, it’s this.
(And no, I’m not getting paid to say anything here.)
Download It Yemememememeh If it opens in your browser as a sound file, just right-click and hit “Save As..”, or whatever the equivalent might be on your system. Huh? This is a bit unusual for this site, but I decided to create a ringtone from a brief clip of audio on The Ricky Gervais Show. I figured I’d share it, in case anyone else wanted this kind of nonsense in their lives. Why? In the episode, Mr. K. Dilkington argues that every noise has been used at least five times. He then goes on to ask why things can’t be made to make a different noise to the ones they make. Ricky insists that things make a noise because the … Continue reading
Oshkoshbegosh!? Another long ramble about power distribution thingies for the home and/or office?!
Well it’s true. Hopefully my next video will not be about this subject.
This compares the relatively-generically-branded Belkin Advanced Surge Protector (which actually bears the handy model number of BE112230-08, like it came out of some kind of dystopian nightmare) to the easily-spoken Furman SS-6B (which itself sounds shockingly dystopian anyway).
I was searching for an “affordable” power distribution unit for some video-related equipment in a rack. The Technical Pro PS9U looked very appealing with its multiple light-up switches on the front, because they made me all sentimental and wistful for the days of switched under-monitor PDUs.
It took a dark turn when I looked at the negative reviews on Amazon, wherein one person uploaded pictures of a melted-down unit. I still bought the PDU, not because I wanted to use it, but purely because I wanted to take it apart for YouTube.
And indeed the Amazon review turned out to be accurate. I would not feel comfortable using the Technical Pro PDU in my house. In my opinion as a random guy on the internet, it is a fire hazard, is poorly made, and shouldn’t even be on the market.
For my actual use, I also bought a Cyberpower CPS-1220RMS PDU. It’s a bit different than the Technical Pro in that it doesn’t have independently-switched outputs, offers surge protection, and is rated at 20A rather than 15A (though “rated” is a strong word in the case of the PS9U). That’s just on the surface, though. Inside, the Cyberpower shows every mark of quality and clearly supports its 20A rating.
In the video I open up the Cyberpower, just to show you what a quality PDU should look like. The comparison between the two products is day and night, even though I got the Cyberpower unit for a mere $15 more (on sale). It’s absolutely worth the higher price (even when not on sale).
The bottom line here is that when it comes to power distribution — be it rack-mounted or a typical power strip style — you should spend the extra money to get the higher-quality unit. Your fire insurance provider will thank you, as might your family (if it comes to that).
This is a follow-up of sorts to my NiMH Battery Roundup video, except this time I’m looking at triple-As, and only one brand.
I was vexed by the fact that Amazon had EBL AAA cells with an 1100mAh capacity for only 7 cents more per cell than the otherwise-identical 800mAh variety. That didn’t make sense to me, and besides, 1100mAh is rather high for a AAA package size. Hence I bought a bunch of each and tested them.
The Bottom Line
The 1100mAh cells appear to be a big fat lie. The average capacity for those clocked in at 980mAh, with one cell showing as low as 946mAh and the highest at 1005mAh.
The 800mAh cells were respectable at an average of 809mAh, and less of a variance between cells.
Despite the fact that the “1100mAh” units were well under capacity, they are of course the better deal coming in at 852mAh per dollar with the 800mAh cells giving 749mAh per dollar.
I wish I had the time, inclination, or money to pit a whole bunch of AAA brands against each other, but I’m satisfied in imagining that quality scales from my AA cell results.