Rack mounted servers have been around for years, and will probably be with us indefinitely. They’re simply the most convenient way to organize large quantities of processing power. You can swap individual machines in and out with ease, and power and cable management are simplified. That said, a well set-up server rack contains more than just servers and switches. It should also include an uninterruptable power supply (UPS). After all, you’ve invested a lot of money in your equipment. You don’t want to lose a server just because of a power outage, especially not when it’s easily preventable.
An uninterruptable power supply consists of two essential components: a power strip and a backup battery. The power strip supplies normal AC power to your devices, while the battery steps in as needed. In the event of a blackout, this will buy you enough time to properly shut down your servers. Of course, a good UPS should include more than the basics. For example, almost every UPS on the market provides surge protection, another essential feature for server power. Power conditioning, voltage regulation, and remote monitoring are also important. With the right UPS, you’ll have an all-in-one solution for powering your rack-mounted equipment.
We’re about to review three of the best 1U and 2U rackmount UPS battery back-ups. We’ll begin with the Tripp Lite Smart UPS Battery Back Up. This is a highly-efficient 2U UPS with an impressive three-year warranty and insurance policy. Next, we’ll look at the APC Smart UPS. This is a long-running 2U UPS that comes with advanced online controls. Finally, we’ll review the CyberPower Smart App LCD UPS System. This 1U UPS provides the same wattage as our previous two options, but in a slimmer package. Which backup system is the best? We’re about to find out.
不同类型的服务器机架
在早期,找到正确的设备your server rack could be a rocky process. There were no universal standards! Thankfully, this has not been the case for some time. Modern server racks come in two widths: 19 and 23 inches. In addition, they come in two different heights: 1.75 inches and 3.5 inches. The 1.75-inch size is considered one “unit” tall, or “1U,” while the thicker size is designated as “2U.” As a result, there are four sizes of rack-mounted equipment: 19-inch 1U, 19-inch 2U, 23-inch 1U, and 23-inch 2U. And because of the way their built, you can install any 19-inch device on any 19-inch rack. The same is true for 23-inch devices. So basically, as long as you have the right width for your rack, any given machine will fit.
也就是说，制造商需要更长时间达成一致标准孔型。早期服务器机架使用预螺纹孔，但制造商无法达成螺纹。根据您购买的内容，您可以使用M6,10-32或12-24螺钉。这不是一个大的交易，但这意味着你必须保持自己的螺钉夹具以便安装。螺纹孔在服务器机架上长时间超出风格。如果你有它们，你可能已经知道了。尽管如此，这是你应该知道的。
在90年代后期，IBM再次开始使用圆形，无螺纹孔。这个想法很简单：你可以使用笼子或夹子坚果以及任何类型的螺钉。换句话说，安装更容易和更快。惠普，戴尔和其他人即将开始这样做，而戴尔建造了整个新的铁路系统，Versa Rail。
Eventually, though, the industry settled on square cage nuts as the best option, necessitating square holes. The reasoning is that once inserted, a square cage nut doesn’t have to be manually held in place. You can use one hand to support whatever you’re mounting, and the other to turn your screw. Nuts can use a variety of threadings, but will always have an outside measurement of 3/8 x 3/8 inches. Square holes also allow a standard size for snap-in rails, although these vary by manufacturer.
今天，我们将严格地看待专为方孔设计的最新UPS电池备用。这意味着如果您有一个较旧的机架，您需要提供自己的安装硬件。今天的所有选项均为19英寸，也是如此。我们选择这种尺寸，因为它是最常见的，23英寸设备通常更为专业化。简单地说，更多的人正在使用19英寸的架子。随着那种方式，让我们仔细看看这些UPS系统中的每一个！
Tripp Lite Smart Ups电池备份
Tripp Lite是一家知名电力设备制造商。在他们的其他产品中，我们已经审查了他们的rackmount surge protectorsin the past. TheTripp Lite Smart UPS电池备份is even more full-featured, providing not just surge protection but emergency power. This is a fat, 2U battery backup with eight grounded electrical outlets on the backside. The housing is a durable polymer, and comes as a standalone unit by default. However, you can also order it with a shelf, with a secondary power strip, or as a floor-standing UPS.
这front of the housing sports a blue LCD display that keeps you posted on the current power status. The current voltage is shown in big, bold numbers, so you know whether you’re getting sufficient juice. Underneath, you’ll see a battery meter. This is a simple visual meter, nothing fancy. But in the event of an outage, it gives you a reasonably good idea of how much power is remaining.
Battery Power and Extras
总共可以提供多达1,500VA的功率。由于电脑被评级的方式，这效果为900瓦亚洲官方合作伙伴，而不是1,500件，您可能期望。长话短说，Wattage =电压X Anperage，除非您正在处理计算机。亚洲官方合作伙伴即便如此，您也会查看标准15-AMP插座提供的全部功率。在半负载下，内部电池将提供足够的电源，可提供11.8分钟的运行时。在满载时，这降至4.4分钟。但只要你不愚弄你的所有设备，它仍然足够长。为确保停电不会令您惊讶地抓住您，系统具有可听警报。如果您丢失电源，这将听起来，但如果您不想要它，可以关闭。
This UPS has an impressive efficiency rating of 98 percent. It also manages your power to ensure consistent voltage. During brownouts, the battery will compensate for any drop in power. During any power spike, the extra energy will be diverted either to the battery or to the ground. This automatic voltage regulation (AVR) is ideal for sensitive electronics, which can be damaged by small fluctuations. Not only that, but all eight outlets have built-in surge protection.
Using the companion software, you can connect the UPS to your servers via USB. When configured in this fashion, the Tripp Lite system will automatically save files and shut down during a blackout. There’s no human intervention required to shut your computers down safely. Moreover, the Tripp Lite UPS is covered by a three-year manufacturer’s warranty. In addition to replacing the UPS itself, Tripp Lite will also reimburse you up to $250,000 for any damaged equipment.
APC Smart UPS
APC is another company whose products we’ve reviewed in the past. In fact, we already reviewed theirdesktop uninterruptable power supply, and we liked how well it performed. Like the Tripp Lite UPS, theAPC Smart UPSis a 2U machine. It’s durably built, with a black aluminum front and sides and plain silver top and back. The six grounded outlets are less than the Tripp Lite’s, but are also conveniently located on the back.
这front LCD panel displays all the same information as the Tripp Lite. You’ll see the current incoming voltage, along with a battery meter. However, there’s also a meter showing you the current load. You can see in real time exactly how much power is being delivered in total to all your devices. This is very useful if you’re not sure how many watts your equipment is drawing.
Battery Power and Extras
APC智能UPS提供1,500VA，或900瓦的电力。这种功率是纯的正弦波，这确保了即使是最敏感的设备也是安全的。您还可以获得比Tripp Lite更强大的电池。Bizartely，APC广告其在100瓦的绘制下的性能（1小时，47分钟）。但是，谁使用了100瓦电力的机架式UPS？在全额900瓦，这款电池将持续11.8分钟。这已经足够了，以保存您的工作并安全关闭任何连接的设备。
An AVR system keeps the power running at a consistent 120 volts, without any dips or spikes. It also protects the battery from overcharging, ensuring that it lasts for several years. In addition, there’s an audible alarm, which can be deactivated by pressing the mute button on the front panel.
这most important feature of the APC Smart UPS, though, is its SmartConnect system. This is a cloud management app that allows you to monitor the UPS from anywhere in the world. The portal is encrypted, so hacking is not a concern. Meanwhile, you can receive alerts or check your system’s status whenever you like. You’ll also get manufacturer notifications for firmware upgrades, so you’ll always be running the latest version.
CyberPower Smart App LCD UPS System
CyberPower is well known for their power systems, such as theirwall-mounted surge protectors。他们的Smart App LCD UPS System是一个超薄的1U系统，旨在节省服务器机架上的空间。它有六个接地的网点，所有这些都是受影响的浪涌。但是，只有左侧的四个灰色插座连接到电池备份。两个黑色出口仅受到浪涌保护。
As with our first two UPS systems, the CyberPower has an LCD display. In addition to the voltage and battery meter, it also displays the current remaining runtime. In the event of a blackout, you’ll know exactly how much time you have before power runs out.
Battery Power and Extras
Despite its small size, the CyberPower UPS can provide a full 900 watts of power across all six outlets. It also sports a reasonably-powerful internal battery. At half load, it can power your devices for 11 minutes, dropping to about 2 minutes under full load. That’s cutting it a bit close, but remember, we’re dealing with a compact unit.
这AVR system delivers consistent power regardless of any minor fluctuations in the grid. It also delivers power as a simulated sine wave, so it won’t damage sensitive devices. Everything is protected from under-voltage and over-voltage, and the battery is protected from overcharging. All of this, including the battery, is covered by a three-year manufacturer’s warranty. To top it all off, you get a robust $300,000 insurance policy to cover any damaged equipment.
Final Verdict
那么，其中哪一个机架UPS电池备份是您的最佳选择？它在很大程度上取决于你需要的东西。这Tripp Lite Smart Ups电池备份是一个经济实惠的系统，仍有很多建议它。它是高效的，其AVR系统是有效的，它提供了全额900W。唯一的缺点是电池，在全绘制时提供不到五分钟的电力。
这APC Smart UPS有点强大，有足够的果汁在满载下近12分钟运行。不仅如此，但云管理应用程序是一个很好的额外功能。您不必在现场始终掌握此系统。
这CyberPower Smart App LCD UPS System在纤薄的1U封装中提供完整的900瓦。电池备份与其他电池不如其他功能，但它仍然足以安全地关闭任何连接的设备。不仅如此，而且保修是群中最强大的，保险范围内的300,000美元。
