Work:
NetWorker
-------------------
The EMC NetWorker backup and recovery software centralizes, automates, and accelerates data backup and recovery operations beyond SS the Enterprise. Following are the features of EMC NetWorker:
Supports heterogeneous platforms, such as Windows, UNIX, and Linux, and also supports Virtual Environments
Supports clustering technologies and open-file backup
Supports different backup targets: tapes, disks, and virtual tapes
Supports multiplexin
Deduplication and data compression can greatly reduce data storage performance requirements and reduce data backup by more than 90%. Reducing backup data can reduce hardware and management costs. However, small and medium-sized enterprises and departments often cannot apply these technologies. There are some reasons, including the lack of practical experience.
The following are some common data backup problems:
1. Should we use
When selecting a product for deduplication, you 'd better consider the following ten questions.
When a storage product provider releases a deduplication product, how can it locate its own product? Do you have to think about the following questions?
1. What is the impact of deduplication on backup performance?
2. Will ded
Efficiency Test of several methods for removing the JavaScript array, javascript Array
The following is my summary of the three high-efficiency methods on the Internet and the efficiency test. If you have better comments or suggestions, you can also give them some suggestions.
Array deduplication Method 1:
Array. prototype. unique1 = function () {console. time ("array deduplication 1"); // record execution
(such as Hyper-V, storage replicas, storage spaces, clusters, scale-out file servers, SMB3, deduplication, and Refs/ntfs).
can help reduce costs and complexity, as follows:
Hardware-independent, there is no requirement for specific storage configurations such as DAS or Sans.
Allows the use of commodity storage and networking technologies.
The ability to easily graphically manage individual nodes and clusters through failover C
very small. Generally, Alpha is a server, so the stress is high;3. The data block size in rsync is fixed, and the adaptability to data changes is limited.A typical example of the RDC algorithm is the dfsr (Distributed File System replication) in Microsoft DFS. It differs from rsync in that it uses consistent block rules to split the copied source and target files. Therefore, the amount of RDC computing on the source and target ends is equal. The RDC and rsync algorithms differ in their focus. R
, with a port number ranging from 16 to 256 per chassis. Because building a large storage network requires not only high port density.
As a result, Cisco has introduced many new features, making the multi-layer storage network a reality. Virtual SAN, advanced traffic management, hardware maintainability, and comprehensive security make the Cisco MDS 9000 Series A preferred platform for enterprises and provide them with the highest scalability and lowest TCO.
iscsi? Vsan-interface-membership.
Select Apply.
In this case, the Cisco MDS switch can accept iSCSI commands at any time.
Now, you will set the MDS port and parameters. To configure the GigE interface, perform the following operations:
Locate the iSCSI port of the Cisco Catalyst network switch.
Right-click the port to be configured and select Configure ....
Select the GigE tab from the top of the configuration panel.
Enter the port Description
time takes about 2 seconds.
3. Methods to Improve the efficiency of searching Elements
We can first use array_flip for key-value swaps, and then use the isset method to determine whether an element exists, which improves efficiency.
Example: Use array_flip to perform key-value swaps first, and then use the isset method to determine whether to compare 0.1 million times in the array of 1000 Elements
run time:1.2781620025635ms
Array_flip and isset are used to determine whether an element exists.
workload is very small. Generally, Alpha is a server, so the stress is high;
3. The data block size in Rsync is fixed, and the adaptability to data changes is limited.
A typical example of the RDC algorithm is the DFSR (Distributed File System Replication) in Microsoft DFS. It differs from Rsync in that it uses consistent block rules to split the copied source and target files. Therefore, the amount of RDC computing on the source and target ends is equal. The RDC and RSync algorithms differ in
PostgreSQL usually finds one of the duplicate data and removes other duplicate values with a unique condition. Oracle deduplication is implemented in many ways. It is commonly used to perform deduplication Based on rowid. How does the PostgreSQL database remove duplicate data from a single table? You can use ctid. The following is the experiment process. 1. Create a test table david
PostgreSQL usually finds
1. Select the installation sourceThe deduplication feature does not exist on Windows 8.1 systems, and it is necessary to extract the relevant files from the corresponding server version, Windows Server R2.2. Extract FilesThere are a lot of directories and files in the installation source, we only need three directories:\windows\servicing\packages, package file;\windows\winsxs: assembly file. Other subdirectories are not required except for the subdire
During normal development, we often encounter repeated data in data tables. How can this problem be solved? Here we will introduce the data deduplication methods in two cases: 1. Completely duplicate data deduplication; 2. Partial field data deduplication.
I. Completely duplicate data deduplication Method
You can use t
PHP implements two-dimensional array de-duplication function example, two-dimensional array example
This example describes how PHP implements the two-dimensional array deduplication function. We will share this with you for your reference. The details are as follows:
Deduplication of two-dimensional arrays in php. For example, the record queried from the database performs
Now there are more and more backup application software in the market, which one is more suitable for enterprise level? This is a different answer for every business. So the small series to recommend some of them, we can use to see.1. Symantec Backup Exec and NetBackupBackup exec integrates deduplication and archiving technologies for Windows, Linux, Macs, and a variety of virtualization platforms. NetBackup is another Symantec-based backup product th
secure interface, and can be remotely managed from almost any location, as shown in Figure 1 ).
Figure 1 Cisco Fabric Manager user interface
Features of Cisco Fabric Manager
Java applications embedded with vswitches-integrate vswitches and network management into a performance optimization tool available with each Cisco MDS 9000 Series Switch.
Matrix visualization-performs Centralized Automatic Identification and displays the storage network topology, connection, and Re
devices> iSCSI.
Select All vswitches in the NetworkControlTab, and then selectIscsi enable.
SelectApply.
Partition
Partition execution on the Cisco fabric manager graphical user interface (GUI) should be performed in the same way as any other device. Once the MDS is set to process the iSCSI interface, the MDS should be considered as any other terminal device.
Cisco Device Manager
Use Device Manager on the Cisco mds san Switch to perform the following steps. You need to have administrator acc
DAS.ALLOWNETWORKX-Allows specific management networks to be specified for vsphere ha's heartbeat network, x can be Arabic numerals 0-9. This option is not valid when the Vsan function is activated in 5.5.
Das.ignoreredundantnetwarning-If ESXi host under vsphere Ha management does not have redundant networks, it will be alerted, so you can skip the alert with this parameter;
Das.heartbeatdsperhost-vsphere ha defaults to configure 2 heartbeat Datast
functions can be performed in a secure interface and can be managed remotely from any location.
Features of Cisco Fabric Manager
• Java application for embedded switches-integrates switches and network management into one of the performance tuning tools that are supplied with each Cisco MDS 9000 series switch.
• Matrix visualization-Performs centralized automatic recognition and displays the storage network topology, connectivity, and regional/virtual storage Area Network (
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