: "No, this system is not good enough." Please design another one for me. "So I did the following again:Then I explained to him how the system works.My new Friend (printf) said politely: "It's not what I want, it's too complicated and it's a lot of things I don't need." "I was so upset that I designed this system to take into account: redundancy, monitoring, backup
What is maid storage?
Maid, that is, massive arrays of idle disks. Snia defines maid as a storage system comprising an array of disk drives that are powered down individually or in groups when not required. Maid storage systems reduce the power consumed by a storage array.
Maid technology is proposed and developed base
Question: What is a RAID level? What does the raid level mean?
RAID technology is divided into several different levels, offering different speeds, security, and price/performance. Choose the appropriate RAID level to meet the user's requirements for storage system availability, performance, and capacity, depending on
What file format is bak?
. bak is a backup file, which is a file format extension that is typically preceded by a. Bak with the original extension such as Windows.dll.bak, or Windows_dll.bak, or a combination of the suffix name
I. Explanation of DD commandsDD: Use a block of the specified size to copy an object and perform the specified conversion at the same time. Note: If the following column ends with a specified number, multiply it by the corresponding number: B = 512; C = 1; k = 1024; W = 2
Parameter notes:1. If = File Name: Enter the file name. The default value is standard input. Specifies the source file. Ii. dd application example
1. Back up the local/dev/HDB to/dev
If you have a friend who likes to toss about Android, it's not strange to bak files, because changing a file in the RE manager will generate a bak file to record the original file to ensure the proper operation of the system.
What file is Bak?
. bak is the backup file, the file format extension, which
My mobile phone is stored in the contents of the backup to the cloud, including "Address Book", "Calendar", "Short MMS", "Mobile Applications", "mobile phone Pictures", "mobile video."
1, Address Book
A, how to open the Cloud Address Book?
If the user has not opened the cloud Address Book, the first click on the "Address Book" pop-up confirm the opening of cloud contact book prompts, click OK, open Cloud
What is the most expensive computer? is the CPU, or memory, or hard disk? None of these parts can be replaced, only the data is the most critical, data loss is the biggest loss. Do you often hear or see a friend complain that "I can't read the data on my hard drive?", "My ha
prevent data loss due to unexpected disk damage to the maximum extent. RAID 0 aims to speed up disk reading and does not provide any data backup and protection functions. We can select different raid applications based on the actual situation.
Of course, it is very convenient for those who need to store a large amount of data on the hard disk to use RAID technology. Mainly manifested in the following as
sub-blocks and then analyzed. However, when users are confused and look at the analysis results you have worked so hard to make, they ask you: what do I want to do for a data backup task? At this time, you will find that you need to open three windows to complete this task.
Never forget: decomposition is necessary, but the ultimate goal
function can not specify a compressed backup, relatively Oracle's active protection function is very common; 6, the function of the operation of DB2 I also very much love, Oracle also has similar ahm, but the operation of DB2 more direct, can see what the database is currently in doubt, DB2 give the idea of how to dis
maximum of 4GB.
2. With smaller clusters, the FAT32 file system can save information more efficiently. If two partitions are 2GB in size, one partition uses the FAT16 file system, and the other partition uses the FAT32 file system. The cluster size of the FAT16 partition is 32KB, and the FAT32 partition is only 4KB in size. This FAT32 is much higher than the FA
Tags: dirty SSIS new run COM Number ENC team toolsWhat is your definition of a DBA? What is your definition of DBA? Today we have a guest(guest) editorial(editorial)asSteve traveling to the UK. today we have a guest editorial that is Steve traveled to England. Ok,i know the easy answer are a Database administra
Labels: software uses Gen to improve highlights and improve implementation of many large websites that do not execute
1. What is redis?
Redis is a memory-based high-speed cache database developed by Salvatore sanfilippo (Network Name: antirez. Redis is called remote dictionary server (Remote Data Service). This softwa
troubleshooting backup slowness and application latency. in this articleArticleWe will clearly define the TCP window to see how it affects performance and how to monitor it using Wireshark.
What is a TCP window?
When discussing TCP window, we almost always refer to TCP receive window. to put it simply, the TCP receive window
HACMP can be said to be a server engineer, and there is no unknown-IBM's housekeeping architecture. I have recently asked readers to talk about the issue of HACMP by phone or email.
Here, I will repost an article from IBM, which is very well written and accurate. It is a lot better than what I said. Everyone will benef
There are two important indicators in the hard drive detection-remapping and mapping, which are often mentioned by the master, but do you know what remapping is and what is to be mapped?
Lifting the remapping also takes the hard drive's bad protection mechanism first. Hard drive production received process constraints
Writing PHP is getting harder and harder, and I think of a new line. What to do in the next business today, the company said that it is in urgent need of a similar consignment wholesale platform, a lot of functions. To sum up:
1) dealer registration, authentication, ordering, and payment. (Different levels of dealers' prices and rebates make different goods avail
data used by the design and management personnel of the data warehouse for development and daily management. Including data source information, description of data conversion, definition of objects and data structures in the data warehouse, rules used for data cleaning and data updating, and ing between source data and target data; user Access Permissions, data backup history, data import history, and Information Release history.
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