Huayu Integrated 4 groups of Windows Learning Month daily a knowledge point (1-10)

3.29windows Learning Month (a). How much does Windows know?

Connection Address

http://11287958.blog.51cto.com/11277958/1757569

3.29windows Learning Month (two)
What are the pros and cons of today's popular raid configurations with raid0,1,5,6?

3.29windows Study month (b), we work together to have the following results:
Raid0:n block disk, capacity of n disk capacity of the sum, all hard disk simultaneously read and write, the fastest, no redundancy
RAID1: Two pieces of disk, the capacity of a disk capacity, one piece is another disk of the mirror disk, the capacity is reduced by half, the slowest speed, there is redundancy
Raid5:n block disk composition, capacity of N-1 block disk capacity of the sum, with a disk for parity check, faster, redundant, up to a bad plate allowed.
Raid6:n block disk composition, capacity of N-2 block disk capacity of the sum, security than RAID5 high, work efficiency than RAID5 low, up to allow bad two disk

3.30 Learning months the difference between NTFS and FAT32
1, disk partition capacity Difference
NTFS can support a partition size of 2TB (2048GB), FAT32 support partition size up to 32GB
2. Individual file capacity differences
FAT32 files larger than 4GB in a single file are not supported in the actual operation.
NTFS has now breached the capacity limit of a single file 4GB, and there seems to be no capacity limit
3. Differences in security
NTFS can be used to encrypt, modify, run, read directory and write permission settings for all folders and files in this format for computer users. In addition, the right-click property on any folder or file under the disk partition, check the encrypted content in the Advanced Properties window to protect the data to encrypt.
FAT32 file Security settings: not supported; NTFS file security settings: Support
4, the difference between disk quotas
FAT32 disk quotas: not supported; NTFS disk quotas: Supported
5, Disk Utilization difference:
NTFS file system, when the size of the partition is below 2GB, the cluster size is smaller than the corresponding FAT32 cluster, and when the partition size is above 2GB (2GB~2TB), the cluster size is 4KB. Minimizes the waste of disk space.
6, the System file compression difference
FAT32 System file compression: not supported; NTFS system file compression: Supported
7. Differences in Disk fragmentation
FAT32 disk Fragmentation: resulting disk fragmentation in general; NTFS disk fragmentation: produces less disk fragmentation
8. Differences in real-world applications
NTFS is currently used for computers, mobile hard disk and other large and medium-sized space capacity of the disk.
FAT32 is used for small disks such as U-disk, memory card and so on.

3.31windows Study month (four)
We install the middleware often encounter the port is occupied, how to solve the problem?
Very simple, such as 8080 port is occupied, follow the following steps to do:
1. Enter Netstat-aon|findstr "8080 in DOS"
2. If it is windows2012, directly in the task Manager "Details", find the corresponding PID can be
3. If it is an older version of Windows, in the task Manager "process" Select the card, click View---> select column, the PID (process identifier) in front of the Tick is OK

4.5windows month (Fri)
1.dns:domain Name System domain name management systems domain name is composed of dots separated by a string of words or abbreviations, each domain name corresponds to a unique IP address, this named method or the system of managing domain name is called Domain Name management system
2.A record-map domain name fqnd to IP forward parsing
3. Alias (CNAME)--point the domain name to another domain use: Set the domain name or sub-domain point, to ensure that the domain name points to the corresponding host important settings, it can only fill in the domain name. When you add a CNAME record, the alias is a level three or multilevel domain name and the target host is an alias.
For example: www.lison.com point to Ftp.lison.com
4. Reverse parsing (PRT)--a record pointing (another domain name) is a pointer record, used to map an IP address to the corresponding host name, or as a record of the reverse, through the IP access to the domain name, originally through the domain name to access the IP)
5. Mail Exchanger (MX): The name of the computer used to map the DNS domain name to Exchange or forward mail.
6.NS Records
The NS (name server) record is a domain name server record used to specify which DNS server the domain name is to be parsed.
7.TXT records, generally refers to a host name or domain name description, such as: admin in txt "Administrator, Phone: Xxxxxxxxxxx", mail in txt "mail host, stored in XXX, Manager: AAA", Jim in TXT "Contact: [Emai L protected] ", that is, you can set the TXT content in order to get someone else to contact you.

4.6windows Study Month (vi):
Dynamic disks:
dynamic disks, instead of the previous partitioning method, are called volume sets, compared to basic disks, and dynamic disks can allocate storage at any operating system level:

1. Simple volume: Contains disk space on a single disk, as well as partition functionality.

2. Spanned volumes: spanned volumes merge unallocated space from multiple disks into a single logical volume.

3. Striped Volume: Combines multiple (2 to 32) unallocated space on the disk to a volume.
(We'll see another partitioning method if the two dynamic disks in the system are the same as described above)
4. Mirrored volumes: Two copies of a single volume, each on one hard drive. That's what we often call RAID 1.

5.RAID 5 Volume: the equivalent of a striped volume with parity, which is the RAID 5 mode.

4.9windows Study Month (vii):
1, convenient management, more centralized authority management, management staff can better manage the computer resources.
2, the security is high, is advantageous to the enterprise the management of some confidential information, for example a document can only let a person see, or the designated person can see, but can not delete/change/move etc.
3, to facilitate the user operation of the rights set, can be distributed, assign software, and so on, to implement the software installed in the network.
4, many services must be built in the domain environment, for the administrator benefits: Unified management, easy to integrate in MS Software, such as Isa EXCHANGE (mail server), ISA SERVER (various settings and management of Internet), etc.
5, using roaming account and Folder Redirection technology, personal account of working files and data, etc. can be stored on the server, unified backup, management, the user's data more secure and guaranteed.
6, resource sharing convenient user-friendly use of various resources

4.10windows Learning Month (8 serial number write heavy): We often contact the registration form, it is a god horse thing?
The registry is a core database in the Windows operating system that holds various parameters that directly control the startup of Windows, the loading of hardware drivers, and the operation of some Windows applications, thus playing a central role throughout the system. These include software and hardware-related configuration and status information, such as the initial conditions for the application and Resource Manager shell in the registry, preferences and uninstallation data, the entire system settings and licenses for networked computers, the association of File extensions to applications, the description, status and properties of hardware parts, Performance records and other underlying system state information, as well as other data.
Specifically, when you start Windows, registry detects new hardware information against existing hardware configuration data, the system kernel picks up information from the resistry, including what device drivers to load, and in what order, the kernel sends back its own information, such as the copyright number, etc. While the device driver also transmits data to registry and receives load and configuration parameters from registry, a good device driver tells Resistry what system resources it is using, such as hardware interrupts or DMA channels, and The device driver also reports the discovered configuration data and provides services to add new configuration data for the operation of the application or hardware. Mate INI files are compatible with 16-bit Windows applications, and when you install a Windows 3.x-based application, the installer for the application is setup like in Windows- Create its own INI file or create portals in Win.ini and System.ini files, and Windows provides a number of other interfaces that allow users to modify system configuration data, such as control panels, setup programs, and so on.

4.11windows Learning Month (eight):
X86 Architecture PC server manufacturer and product line Introduction (2-1):
IBM: Ever since IBM sold the PC server production line to Lenovo, the past glorious X-series servers have become a success. IBM retains core industries such as the mainframe (Z system),
On the basis of IBM Power Systems, IBM began to seek ways to solve problems using big data analytics mining and cloud computing tools.

Lenovo: Lenovo's own Lenovo server production line: RS140, RD350, RD450, RD550, RD650, and RD940, where RD940 supports 4 XEONTM e7-4800 v2 CPU and 3TB memory. Lenovo's acquisition of IBM X-Series servers, renamed to Thinkserver, the product line is still x3250, x3650, x3850, x3950. Where X3950 X6 server has Super extensibility, 8U, support maximum 12T memory. At present, two product lines in parallel sales, an estimated two product fusion is a matter of sooner or later.

Huawei: Huawei Fusionserver product line includes rack servers, blade servers, high-density servers, and even minicomputer. Rack server has more than 10 products from RH1288, RH5885 to RH8100. The highest end of the Rh8100v3 can put 12 144 core cpu,12t memory, performance seconds to kill other manufacturers.

4.12windows Study Month (ix):
The relationship between MBR partition table and GPT partition table
MBR, master boot record, which is the existing hard disk partition mode. The MBR partition standard determines that the MBR only supports hard drives below 2TB, and that more than 2TB drives can only manage 2tb! To address this big problem, Microsoft and Intel developed the GPT partitioning model in the EFI scenario.

GPT, globally uniquely identifies the partition table (GUID Partition table), GUID, globally unique identifier (globally unique Identifier). GPT is part of the EFI scenario, but does not depend on the EFI motherboard, and GPT partitioning is also available in the BIOS motherboard pc. GPT has no limit on the number of partitions compared to the MBR maximum of 4 partition table entries, but Windows supports only 128 GPT partitions. The GPT manageable hard disk size reaches 18EB (1EB=1024PB=1,048,576TB), although the NTFS format supports only 256TB.

Huayu Integrated 4 groups of Windows Learning Month daily a knowledge point (1-10)