RAID 1 has better performance compared to RAID 5, in particular, the write performance is much better. As web and email servers does a lot of writes, to log files, email spools etc, RAID 5 is not suitable for the server. In terms of redundancy, RAID 5 has 1 parity drive in an array (of possibly 7 drives). With a failure of 1 drive, the array performance is badly degraded. This may lead to much higher IO waits, and the server will be unresponsive.

RAID Level 5 is a type of RAID that uses block-level striping (spreading out the blocks of each file across multiple disk drives) and block-interleaved distributed parity to spread the redundant parity information used to achieve fault tolerance across all the disks in the array. If any disk fails, the distributed parity data are used to compute the contents of the "virtual" (failed) disk. An advantage of RAID 5 is that there is no single dedicated parity disk causing a write bottleneck. See similar questions...

In the Java implementation (in FastClosestPair.java) I've defined INF to be the maximum double possible which will work fine here since the maximum distance for the coordinate ranges you are given will always have a distance less than this quantity. For those using C++, I've already defined maxfloat as 400000.0 in the provided stdinc.h which is larger than the distance between any two points for the coordinate ranges that are used. See similar questions...

RAID Level 1 is a disaster recovery method where one hard drive mirrors a second one. In the event that one of your drives fails, the other will immediately continue to serve data. An additional feature with RAID is that, if one drive is overtaxed, the overflow requests will be handled by the second drive. RAID 1 requires two drives, but you will lose the disk space of one of the drives. See similar questions...

RAID 1 is a particular type of RAID technology which ensures that all data is duplicated on pairs of disks simultaneously. This ensures that in the event of a hard drive failure, the server can switch to the other disk with no interruption in service. Also, if multiple requests for the same data are made, demand can be distributed between two disk copies therefore decreasing response time for data access. See similar questions...

Absolutely. We can provide software RAID1 for your VPS; and additional harddisks if required for your backups. See similar questions...

RAID (Redundant Array of Inexpensive Disks) systems are faster and more durable than single large hard disk drives. A RAID system stripes or mirrors your data across multiple hard disk drives. Therefore, when you access your data, all the disks are working at the same time, giving a major increase in speed. The RAID hardware controller also contains a large memory cache which dramatically increases performance. See similar questions...

The combination of a mirrored configuration with striping added is referred to as RAID 1+0 (also called RAID 10). In this scenario, the configuration will provide mirroring (RAID 1) across two (2) or more drives and will "stripe" the data in real-time to a second mirrored drive set. This unique combination will provide data redundancy and some speed advantages, but it does so at the expense of usable storage space. See similar questions...

All levels erase the disk completely. The only difference is how difficult it would be for someone to recover data from the disk using sophisticated recovery tools (including scanning tunneling electron microscopes). Level 1 is the fastest, level 5 is the slowest. Level 5 is the most secure, level 1 is the least secure. I personally couldn't recover anything from a disk that had been cleaned with level 1, but someone with the know-how and a few thousand dollars could. See similar questions...

RAID 1" refers to a "Redundant Array of Inexpensive (or Independent) Disks" that have been established in a Level 1, or mirrored, drive set. A RAID 1 volume is a set of disk drives that are configured for data to be written to 2 volumes simultaneously. This configuration provides complete data redundancy in the event of a drive failure. See similar questions...

RAID 1 (mirroring) results in loss of half of the physical storage capacity of the drives comprising the volume. For example, if two (2) 500GB hard drives are configured as a RAID 1 volume, only 500GB is available for data storage. Using the same drives in a RAID 0 (striped) configuration, total data storage would equal 1000GB (or approximately 1 terabyte). Also, if damaged or corrupted data is written to one drive, it is also written to the second drive. See similar questions...

Yes, XactCopy can be configured to work in a RAID environment. However, if you are more interested in protecting your OS and Applications than Data loss, System Guardian may be a better solution. See similar questions...

Yes, SystemGuardian XC/2000 can be configured to work in most RAID environments. Because some combinations of controllers may not be supported, please download a fully functional 30 day trial copy to ensure the backup drive is bootable. See similar questions...