【 Weak current College 】 describes server secure hotspot 12 skills

Now the Server stored information more and more, but also more and more primary servers for the prevention of accidents or accidents caused massive attack, mainly in loss of data, the server will use many of the major general security skills to ensure its security. The following describes some of the main server security hot skills.

1.iSCSI skills

ISCSI skills is a new type of storage security skills, the skills of existing SCSI interface and Ethernet network (Ethernet) skills, so that the server can be used with the use of IP network storage device to exchange information. The skills not only prices are generally used by the industry standard for FibreChannel, and system administrators can use the same device to manage all of the network, and do not need to additionally equipment to perform network management.

ISCSI skills by IBM research and development of the two main agencies — California Israel Haifa Research Center in Almaden and common development, is a hardware device application, you can run IP protocol upper SCSI command set. Basic, iSCSI can achieve over IP networks, run the SCSI protocol so that it can in areas such as high speed Gigabit Ethernet implementation of routing. Now, many network storage provider committed to SAN (StorageAreaNetwork, storage area network) usage of fibre channel set to a practical standards, but its structure to the high capital costs, this is not an ordinary enterprises can afford; in contrast, NAS skills while inexpensive, but limited by bandwidth consumption, you cannot complete the mass storage and system difficult to meet the requirements of openness. The use of iSCSI skills in above two has been set up between the bridge. ISCSI skills are based on the IP protocol skills standards for SCSI and the TCP/IP protocol to connect to a LAN for network users, only need to do more investment, you can easily and quickly to the information and data to perform interactive transmission and management. Although iSCSI-based IP protocols, but have centralized SAN bulk open storage's quality. This skill information for side to face up to the high speed growth, on the other side was in the "data islands" of many small and medium-sized enterprises will undoubtedly has great appeal.

2. automatic backup skills

The skill is in network systems set up two identical and synchronization of file server, if one fails, another will now automatically access system to replace the failed all of the file server. By applying the skills, you can ensure that fault-tolerant system data information in the system or human error caused the damage or loss, the timely implementation of the data in the local high speed recovery; in addition, the skills can ensure fault-tolerant systems in times of unpredictable or against regional disasters (earthquakes, fires, machine destruction, etc.), the time in local or remote data and the entire system of disaster recovery.

3. transaction tracking skills

The skills for database and multi-user software needs to be designed to ensure that the database and multiple users use the software in all of the processing work is not over yet, or when a workstation or server occur suddenly damaged, be able to keep data consistent. Their works: for the specified transaction (action) or a complete, or what actions are not performed.

4. automatic testing skills

Generally speaking, an incorrect or damaged data before reverting, you must have the ability to timely notice that cause these incorrect reasons, therefore, a complete fault-tolerant systems should be can't support automatic inspection skills. Automatic inspection skills are used in troubleshooting high-speed detection of an effective means, especially with full self validating properties of self calibration device, not only to check the time out of the system modules, also able to detect the error itself. In the design of a fault-tolerant system, if the correct use of automatic testing skills, can significantly improve system responsiveness against errors, the errors of the incubation period is shortened, effectively preventing the further spread of incorrectly, thus it¡¯s helpful for other skills to function in a timely manner is not correct to make the correction.

5. memory error correction skills

This skill is a server error correction transparent test and fault, it found that the skills and correct a memory is not correct, you can trick or treat data bits from the RAM is erased, thereby effectively reduce cannot be corrected by a number of incorrect.

6. thermal positioning skills

The skill is also a kind of check data incorrect skills, the skills can be written to the hard disk of data to perform some check comparison work, thereby determining just read data can not be incorrect or could not have any other queries. In comparison to perform maintenance work, the skills can be put in automatically from the hard disk has just written data read out with the original data in memory to perform the comparison. If there is incorrect, the application in an opened within the hard drive is called "thermal positioning reroute zone" of the area, the hard disk bad area recorded and will be determined by the data in a bad area with the original data is written to the thermal positioning reroute the area.

7. automatic restart skills

Automatic restart of skills means PC server can not manage to complete restart process, in an extremely rapid recovery system running.

8. network monitoring skills

This skill enables users in one common client to monitor all use of the network server, monitor, and determine the server can not be "healthy" and once the server chassis, fans, memory, processor, system information, temperature, voltage, or third-party hardware of appear incorrect, it will alarm management. It is worth mentioning that the monitoring of the client and server side of the network canA LAN or Wan, directly through the network to the server to perform start, turn off or reset bit, great place is the management and maintenance work.

9. the failure of online correction skills

Failure of online correction skills including faulty parts pluggable and part of the online configuration skills. Pluggable components have a hard disk, memory, peripheral cards, power supplies, fans, current PC server to be proud of the skills are PCI Hot plug. Modular design will be the future direction of development.

10. file allocation tables and directories table skills

Hard disk file allocation tables and directories table stored file in the location on your hard disk and the file size, and other information, if it fails, the data is lost, or mistaken as to the other file. By providing two same file allocation tables and directories table, put them in a different location, in the event of a failure, the system will make a prompt, thereby achieving fault tolerance purposes.

11.VersaStor skills

The skill is the Compaq computer company in the data storage, it is one of the masterpieces of the biggest bright spot is the first realization of the concept of network storage pool to eliminate the present widely exists in different storage system boundaries, so that you can in a different storage system to perform easy storage and management. In addition, the storage pool capacity can also be based on different servers and use the programs dynamic and transparent scaling, support for different server data for seamless, transparent and portable. VersaStor skills can be any one of the network connection with SAN storage system provides online storage space acquisition and storage, regardless of the manufacturer; and the skills simplifies the deployment of storage systems, storage management consists of General machinery labor performance to a higher level.

12.AutoRAID skills

This skill is a combination of the advantages of different RAID multilevel RAID arrays for the skills that will last use of the data placed in storage by RAID0/1 of high-speed and high-performance hard drive, the less frequently used data in RAID5 storage of cost-effective hard disk. With AutoRAID, system installation, configuration, and extensions become basic and easy, this ability is no longer need the data to be transferred to other hard disks in the array, simply install the new hard disk, you can automatically AutoRAID determines the size of the hard disk, and it isn't hard disk array; the system will use the new hard disk space, and more data in RAID0/1 storage to improve system performance and speed of access. In addition, AutoRAID can manage different capacity hard disk consists of the hard disk array.