RAID 1(镜像)。
So, our first device will be a RAID 1.
那么，我们第一设备会是RAID1。
Enhanced RAID 1 is generally recommended for data disks.
我们推荐数据磁盘使用改进的RAID 1。
Furthermore, RAID 1 devices should exist on separate drives, to ensure reliability.
此外RAID1设备应该位于不同的驱动器，保证了可靠性。
Practical example: 2 disks, each 80gb in size can be used in a 80gb RAID 1 configuration.
实例：2块磁盘，每块容量大小80gb，配置成80gb的RAID1。
On a side note, in mathematical terms, RAID 1 is an AND function, whereas RAID 0 is an OR.
从一个方面说明，在数学术语上，RAID1是“和”函数，而RAID0是“或”函数。
This is because RAID 1 keeps every bit of data replicated on each of its devices in the exactly same fashion, create identical clones.
这是因为RAID1对每块数据复制在它的每个设备上，完全相同，创建了相同的克隆。
Each Domino partition has a mirrored pair of SCSI transaction log drives, hardware RAID 1 mirroring using the 2498 or similar SCSI RAID adapter.
每个Domino分区都有一对镜像SCSI事务日志驱动器，硬件RAID 1镜像使用2498或类似的SCSI RAID适配器。
In other words, if you implement RAID 1, 4, or 5, you'll be reducing your risk of having a long, unplanned downtime due to a complete drive failure.
换言之，如果您实现RAID 1、4或5，就会降低由于全面驱动器故障而导致长时间意外停机的风险。
Here, only one volume will be seen by your computer, but it will be in fact made by up two two discs in RAID 1 (either four units as a whole and at least).
在这里，只有一个卷将看到您的计算机，但它会在事实上提出了两个光碟，磁盘阵列1(或者四个单位作为一个整体，至少)。
This means that you must have at least one file system in a standard partition (or in a RAID 1 configuration) so that GRUB Legacy can read its configuration files.
这意味着必须有至少一个标准分区(或RAID 1配置)文件系统，这样GRUB Legacy才能读取配置文件。
AIX has many levels of RAID technology incorporated into it for no additional cost; these technologies can be employed at a software level, such as striping (RAID 0) and mirroring (RAID 1).
AIX已经融合了很多级别的RAID技术，且无任何其他的成本；这些技术可在软件级别上使用，比如条带化(RAID0)和镜像(RAID 1)。
We've successfully recovered from a simulated drive failure, and you're ready to start using RAID-1 in a production environment.
我们已经成功地从模拟的驱动器故障中恢复，您也可以开始在生产环境中使用RAID - 1了。
That alone should be enough to convince you that, in most circumstances, you should plan and implement a backup strategy before even thinking about tackling RAID-1, 4, or 5.
仅此一点就应该足以让您相信，在大多数情况下，即使是在考虑采用RAID - 1、4和5之前，都应该规划并实施一种备份策略。
With RAID-1, a disk can fail, and information can still be acquired through the other copy.
对于RAID - 1，一个磁盘发生故障时，信息仍然可以通过其他副本获取。
Our RAID-1 volume would be running in degraded mode, meaning that our volume is still available but without any redundancy.
我们的RAID - 1卷将以降级模式运行，即该卷仍然可用，但是不再有任何冗余。
And (of course:) catch my second Software RAID article, in which we'll take a look at some more advanced Software RAID functionality and RAID-1.
您还应当然：读我的第二篇软件RAID文章，我将在其中探讨软件RAID的某些高级功能和RAID - 1。
Once the new partition is visible to the system, we're ready to restore our degraded RAID-1 array — then, we'll have some redundancy again.
一旦系统看到这个新分区，我们就可以开始恢复降级的RAID - 1阵列—此后，我们又拥有了某种冗余。
When you implement RAID-1, 4, or 5, it's very important that you view the technology as something that will enhance uptime.
在实现RAID - 1、4和5时，将其视作一种延长正常运行时间的技术是非常重要的。
After going through the simulation, you'll have all the experience you need to handle a RAID-1 failure in a real-world environment.
在完成此模拟过程之后，您将拥有在现实环境中处理RAID - 1故障所需的全部经验。
In this article, we look at what you need to know in order to use RAID-1 to increase availability in a production environment.
本文考察，为了在生产环境中利用RAID - 1提高可用性，您需要了解哪些知识。
RAID-1 is simple, but it's wasteful in terms of capacity utilization.
RAID - 1很简单，但是就容量利用而言太浪费。
For example, you can protect three devices with RAID-Z (RAID-Z 1); with four devices, you can use RAID-Z 2 (double parity, similar to RAID6).
例如，您可以通过RAID - Z (RAID - Z1)来保护三个设备；对于四个设备，您可以使用RAID - Z2(双重奇偶校验，类似于RAID6)。
As shown, you can see the elements of your pool (RAID-Z 1 with four devices).
如清单所示，您可以看到池的元素(RAID - Z1以及四个设备)。
Our RAID-1 volume would still be running in degraded mode at this point.
此时我们的RAID - 1卷仍将以降级模式运行。
Then, open it up and unplug one of the hard disks that make up your RAID-1 array.
然后，打开机箱，并断开组成RAID - 1阵列的一个硬盘。
The mail databases were spread across five IBM FAStT 600 arrays, also RAID 0. Network access was through a single 1 GB Ethernet adapter running in full duplex mode.
邮件数据库分散在5个IBMFAStT 600阵列上，其配置也是RAID0。网络访问是通过一个1GB的以太网适配器进行的，它采用的是全双工模式。
Table 1 compares several aspects of an HDD RAID group to an EFD RAID group.
表1在几个方面比较了HDDRAID组与EFD RAID 组。
Labour is already planning to raise nearly 1% of GDP from higher national-insurance contributions and a tax raid on higher earners, including a top rate of income tax of 50% from April 2010.
劳工处已经计划通过提升国家保险金和高收入层的税收中获得近1%的GDP，其中包括从2010年4月开始征收最高达50%的所得税。
Labour is already planning to raise nearly 1% of GDP from higher national-insurance contributions and a tax raid on higher earners, including a top rate of income tax of 50% from April 2010.
劳工处已经计划通过提升国家保险金和高收入层的税收中获得近1%的GDP，其中包括从2010年4月开始征收最高达50%的所得税。
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