zfs zvol

AB is the Apache's own stress testing tool that simulates various conditions and initiates a variety of test requests directly on the server. Next we use AB for a stress test, and then enter at the command line tool: Ab-v You can view version information for the AB tool ~ zfs$ ab-vThis is apachebench, Version 2.3 Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/Licensed to the Apache Software Foundation, http://www.apache.org

application after Master boot, then we may have data written before we have time to execute the show Master STATUS command, so we can parse the master through the Mysqlbinlog client program. The latest Binary log to get its first valid log Position. Of course, if you are very aware of the MySQL version you are using, each new Binary log is the first valid log location, and you will not need to do anything. "Hot backup" with snapshot-enabled software such as LVM or

Solaris10 installation configuration 1. system installation root/changeme creation user and password create/SP/users/scadminset/SP/users/scadminroleAdministrator (administrator privilege) scadmin/scadmin123show/SP/users/scadmincd/SP/networkse solaris 10 installation configuration 1. system installation root/changeme creation user and password create/SP/users/scadmin set/SP/users /scadmin role = Administrator (Administrator privilege) scadmin/scadmin123show/SP/users/scadmincd/SP/networkset pendin

streamlined clone volume through a streamlined volume," said Mike Nils, Senior Product marketing manager at the enterprise platform Department of Hitachi Data Systems. The most effective cloning is to streamline the cloning. The cloning volume does not retain data at all, but is based on the original image. To streamline cloning, you only need to save the differences between the original image and the cloned image, which saves a lot of disk space. In other words, a New Clone requires the least

KentOverstreet announced the new Linux File System Bcachefs. Bcachefs originated from the kernel block layer cache called bcache. The author hopes to provide performance similar to XFS/EXT4 and features similar to Btrfs and ZFS. The disk format of Bcachefs has not been finalized yet, and the code is not ready to be merged into the kernel. Early performance results are okay. Current features include support for multiple drives, built-in Cache/layering,

Oracle SuperCluster M6-32 running Oracle Solaris has increased cost-effectiveness by five times and helps enterprises change business dynamics and make smarter decisions. In addition, Oracle also launched the ZFS Storage device ZS3Oracle ZFS Storage ZS3, which can help customers speed up insights through high performance, dynamic automation and extensive Oracle Joint Integration, reduce Risks and data cent

In Windows 8, the "Storage Spaces" function is introduced. physical disks are centrally managed in pools. Storage pools can be divided into different Spaces and formatted, such as ordinary hard disks for daily use. Similar to Solaris's ZFS and Linux's btrfs, the storage pool can use disks with different interface technologies-USB, SATA, and Serial Attached SCSI. Windows 8 official blog details the storage space management of the new operating system.

this time, we can use the mysqlbinlog client program to analyze the latest Binary Log of the Master to obtain its first valid Log Position. Of course, if you are very clear about the first valid Log location of each new Binary Log in your MySQL version, you do not need to perform any operations. ◆ Perform "Hot Backup" using LVM, ZFS, and other software with the snapshot function" If our Master database is a database that meets the 365*24*7 service, w

is responsible for Linux, because Miss Li knows I will Linux, so in order to let me learn more, let me take charge of Solaris. Because it is a group, we have to have a group to learn to exchange activities, we have also carried out a number of activities, most of the time I was to share the team members. In this process, I feel that Solaris is a great Unix operating system, especially its ZFS file system, more than this era, now FreeBSD is using

Although I know Sun Technology (Especially Java) is one of the most widely used technologies in the world. Although I am one of them, it is also because of my love for sun and its technologies that I have contributed to this article. Sun has made many moves recently, especially in open source. First opensolaris, Sun will use the next generation of ZFS files System Solaris Operating System Go to the open-source project, and now you can

Filesystem in userspace (fuse) is a file system fully implemented in user mode. CurrentlySupport this through the kernel module. Some file systems such as ZFS, glusterfs, and moosefs use Fuse. The Linux kernel module used to support the user space file system is fuse. The term fuse is sometimes used to specify the user space File System in Linux. A file system is an important part of a general operating system. Traditionally, the operating system supp

flexibility is very low, and the data can be cross-system, but the cross-platform capability is poor. Lvm is almost a hot backup. It supports all engines and physical backup Based on snapshots (LVM, ZFS). It is very fast and almost always hot backup. It takes only a few seconds for the data to be affected. However, the snapshot creation process affects online database usage. Therefore, the backup speed is faster and the recovery speed is faster. The

before using the disk partition. The file system is based on storage devices, such as hard disks or CDs, and contains maintenance of the physical location of files. The file system can also be said to be a method for storing virtual data or network data, for example, NFS, MFS, and GFS. Currently, unix and linux file systems have many implementations, such as UFS (BSD-based unix File System), ext2, ext3, ext4, zfs, xfs, and reiserfs. Note: 1. The file

of Sun Microsystems, left the company when the two companies merged.April 2010James Gosling, father of Java, left Oracle and later said the company "challenged morality ".August 2010Oracle internal memos inform employees that OpenSolaris will be suspended and Solaris and ZFS will also be "disabled ".The OpenSolaris Management Board is dissolved.Open OpenSolaris and ZFS project Illumos.Multiple MySQL team m

N long-term documents, including Chinese and English documents, he Deng chengshen was consulted to draw a conclusion that Oracle encountered a Page Break Problem, will not be restarted. However, Oracle has a relatively simple policy to restore the database to a consistent state, backup + archiving logs. Backup ensures that the data page is not broken, and the incremental archiving logs can be restored to a certain time point. Why not? I think Oracle generally uses dataguard for Disaster Toleran

the child process has to be done by itself.View Code When do we choose to use a script instead of a compiled program? Small program How do I create a simple master-slave cluster? What happens when you delete a file link's source file? How does the FTP server restrict access to IP? Describe the directory structure of Linux, what is placed in the/usr/local folder? Self-installing software catalog files What is Git? Explain the structure and how it works? Reference Blog

What is opcode Perhaps you have tried to write dynamic content with C/s, although the development process is extremely cumbersome, but in order to achieve performance improvement, it may be worthwhile, they can compile dynamic content into binary executables, that is, the target code, by the operating system process directly loaded run. Today, very few people have used C + + to write dynamic content, the vast majority of Web developers enjoy the present happy time, a lot of good scripting langu

On the afternoon of June 9, Apple introduced the next generation Mac OS X operating system to various developers at the annual WWDC 08 Convention (the Apple Worldwide Developers Conference 2008). Code-named Snow Leopard Snow Leopard, is expected to be officially released within a year. It is reported that Snow Leopard will focus on improving performance and stability, which will optimize the core processor and introduce a new technology called "Grand Central" to simplify the process of programm

ability is poor.LVM is almost a hot backup, supporting all engines, snapshot-based (LVM,ZFS) physical backups, very fast, almost hot standby. Only affects data for a few seconds. However, the process of creating the snapshot itself affects the use of the database online, so the backup speed is faster, the recovery speed is relatively fast, there is no elastic space, and the limitations of LVM: The multiple logical volumes can not be backed up at the

Brendan Gregg is currently the senior performance architect for Netflix, where he performs large-scale computer performance design, analysis, and tuning. He is the author of technical books such as "Systems performance", and has been awarded the 2013 USENIX LISA Award for his achievements in system administrators. Before he was Sun , a performance leader and kernel engineer, he developed ZFS L2arc in sun to study storage and network performance. He ha