zfs storage server

using less time Do not run all your backups at the same time. Do not run a batch program at the same time as a large backup. Use the backup option to write to multiple files. This will scatter your I/O and increase the number of threads. Use several backup technologies at the same time: complete, differentiated, and log. Local recovery From a recovery standpoint, most of the time mentioned above is used for recovery. Here are some additional tips: Different phases are used in different a

Label: 1 --View current storage location 2 SelectDatabase_id,name,physical_name ascurrentlocation,state_desc,size3 fromsys.master_files4 wheredatabase_id=db_id(N'Database name'); 5 6 --Change the location of the file to take effect the next time 7 --TestDB is the database name, 8 Alter DatabaseDatabase name Modifyfile(Name=FileName (does not contain a suffix), filename= 'File storage Path'); 9 Alter Datab

This article is original article, reprint please indicate the source! My blog address: http://www.cnblogs.com/txwdAs a result of the work, for more than a year now for this has not written SQL Server storage process, has been a little rusty. Recently work has a table of data needs to be updated regularly, turn over the previously written storage process, in this

In today's article, I want to talk about a really cool promotion in SQL Server 2014: Now you can finally suppress the query based on the IOPS you need! The resource governor (Resource Governor) has been introduced from SQL Server 2008, but the functionality provided is limited: You can limit CPU time (which is already great), and you can limit the amount of queries (from each individual query). But as a DB

There are typically seven STORAGE server states: # Fdfs_storage_status:init: Initialization, not yet available source server for synchronizing existing data # Fdfs_storage_status:wait_sync: Waiting for synchronization, the source server has been synchronized with the existing data # fdfs_storage_status:syncing: In

To view disk space usage:Df-hView the space occupied by the first level directory under the root directory:Du-h--max-depth=1/Find files larger than 2000M in the root directory:Find/-size +2000mFind files that have been deleted, but are still occupied by the process:Lsof |grep deletedReview the process information based on the process ID found in the previous step:Ps-ef | grep pidServices to restart the process:Use the kill-9 PID command to stop the process.After that, disk space is freed.Workaro

There are now two main hard disk interface technologies on the server, SATA and SCSI, and the products that use SAS hard drives are currently listed, and of course high-end optical drives, the first two of which are the most common. Here we have a brief introduction to SATA, SCSI, SAS and other interface technologies. Sata SATA (serial Advanced Technology attachment) is the abbreviation for Serial ATA, which is currently available SATA-1 and SATA-2

How to use filegroups to solve the poor reading and writing performance of large data volumes, the following steps:In Enterprise Manager, right-click your database, select Properties, select Data file, add one, fill in the file, fill in the location, file group, such as ABC---OK.Then you can right-click on the table in your database, design the table, then right-click Properties, and then change the table filegroup and text file group to ABC, the original table from the original large MDF file i

] Asc[ID] ASC)GO or in the GUI. Two, the root node structure of the combined index First look at the physical structure of the table --Turn on trace flagDBCC TRACEON (3604,2588)--DBCC Traceoff (3604,2588)---Gets the data page of the object, structure: Database, object, displayDBCC IND (ixtest,users,-1) Viewing the contents of the first index leaf node DBCC page (ixtest,1,201,3) Note: 1. when a composite index query does not contain columns, the RID query is still gone. 2. If it is an include

non-overwrite update, it will cause the movement of the data rows during the page splitting process:(1) The move of the clustered index has no effect on the nonclustered index, because the key value of the clustered index is stored in the nonclustered index, and the split does not change the key value;(2) The data page in the heap table splits, leaving a forward pointer at the original record to tell the nonclustered index where to find the new record;So the movement of data rows does not cost