Making copies of data which may be restored after a data loss event or to recover data from some earlier point in time.

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3answers
4k views

BACKUP failed to complete - with spaces, for no reason

Every day my database backup fails for some databases and does fine for others. I'm calling the backup through a Stored Procedure that runs scheduled in a job. Tonight I'm going to run the procedure ...
0
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0answers
74 views

hot/live sql backup

please excuse my ignorant question as I am still fairly new to database things so I have a mysql database and a part of it has file with average size of 10M I store them in their own directory and ...
0
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2answers
1k views

How to run a cold backup with Linux/tar without shutting down MySQL slave?

I run the following before tar-ing up the data directory: STOP SLAVE; FLUSH TABLES WITH READ LOCK; FLUSH LOGS; However, tar will sometimes complain that the ibdata* and ib_logfiles* files are ...
-1
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1answer
357 views

“Backup mysql database by copying the data file even when MYSQL server is running” solution! Is there any problem for this backup solution?

I am using MYSQL-5.0.27 I have 2 exact same MYSQL folder "mysql-5.0.27-win32". One in the Virtual Private Server (VPS) & the other in Local PC. At the beginning, these 2 folders are exactly the ...
5
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2answers
5k views

How to backup large MongoDB database

What is the recommended way to back up large data sets in MongoDB? Let's say we have a data size in the order of 10TB - how would you back that up? We're considering a hidden, possibly delayed, ...
13
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3answers
3k views

How often to backup the master database?

The suggestion in BOL is fairly vague: Back up master as often as necessary to protect the data sufficiently for your business needs. We recommend a regular backup schedule, which you can ...
10
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1answer
4k views

What's a good SQL Server backup schedule?

There seems to be a plethora of information regarding the process of setting up backup tasks, but not much information about the big-picture view of database backups. At least, it's hard to formulate ...
7
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3answers
4k views

Will the transaction log shrink automagically in SQL Server?

When SQL Server database in a SIMPLE mode, you don't have to care about the transaction log bakcups. But in a SIMPLE mode, the transaction log seems to grow as it does in FULL mode. Does is truncate ...
17
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1answer
429 views

Setting BUFFERCOUNT, BLOCKSIZE, and MAXTRANSFERSIZE for BACKUP command

I am looking for practical guidance for setting the values for the BUFFERCOUNT, BLOCKSIZE, and MAXTRANSFERSIZE of the BACKUP command. I have done a bit of research (see below), I have done a bit of ...
8
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2answers
5k views

Running pg_dump on a hot standby server?

Disclaimer: I admittedly haven't tried this yet, but I'm not sure I would know if it wasn't working correctly, so I wanted to ask. I would like to run a nightly backup job (via pg_dumpall) from a hot ...
6
votes
8answers
15k views

Taking backup of all the databases in SQL Server

I have a Microsoft SQL Server 2005 DB server. In the DB server, I have around 250 user databases. I have to take a back up of all these databases. Since, manually taking backup consumes lot of time, I ...
15
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3answers
889 views

Database disaster prevention [closed]

My database is larger than 250GB. I make scheduled backups with a third party Tool. Are schedule database backups the best way to protect SQL Server database from corruption? Or can you recommend ...
13
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2answers
8k views

How to do incremental backup every hour in Postgres?

Trying to do an hourly incremental backup of a single Postgres server (Win7 64). I have the following setup in postgresql.conf: max_wal_senders = 2 wal_level = archive archive_mode = on ...
11
votes
5answers
2k views

Backing up & restoring 10-20 SQL Server databases to a ~synchronous state?

I need to backup up 10-20 SQL Server 2008 R2 databases with sizes between 10-50 GB, while they are online and used simultaneously by a single enterprise app. I also need to restore them to a state ...
10
votes
5answers
12k views

How do I copy my SQL Azure database to a local SQL Server instance?

I have an OLTP database hosted on a SQL Azure instance. I want to pull a copy of the database down from the cloud so I can run some heavy extracts and OLAP-style queries against it without impacting ...
8
votes
2answers
193 views

How many backup devices is recommended to improve backup performance?

In order to improve performance of our SQL Server backups we backup to multiple backup files. On most blog posts about this topic they say to use multiple backup files but, is there a point where ...
8
votes
5answers
14k views

User Permissions Messed Up following a Backup -> Restore Operation

I had to move several SQL Server 2008 databases to our new db server so I backed them all up (to .bak files), copied these files over to the new box and restored them (all done using SQL Management ...
8
votes
2answers
12k views

Why do we need to backup Oracle archive logs along with datafiles

Oracle® Database Backup and Recovery Basics 10g Release 2 (10.2) says that Archived redo logs are the key to successful media recovery. Back them up regularly. But, I wonder, why backups of ...
8
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6answers
5k views

Pros and Cons of SQL Server back up strategies and their appropriate usage scenarios

From what I can tell, there are three possible ways of backing up your SQL Server database Full backup Differential backup Log Shipping What are the pros and cons of each strategy and in what ...
4
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3answers
7k views

how to create backup for stored procedure,trigger and functions of a database in sql server 2008?

I'm having 2 databases in 2 different servers(.246 and .252). I need to create backup for all stored procedures, triggers and function from 252 server and restore it in 246 server.database name in ...
4
votes
2answers
226 views

BACKUP LOG cannot be performed because there is no current database backup

I have a SQL Server 2005 database using the full recovery model. If I execute the following commands: ALTER DATABASE test SET RECOVERY SIMPLE; ALTER DATABASE test SET RECOVERY FULL; or BACKUP LOG ...
4
votes
3answers
5k views

How can I dynamically back up all SSAS databases on a given instance?

I want to dynamically back up all the databases on a given SSAS instance using a SQL Agent job (which would most likely involve executing an SSIS package). It is imperative that this is a dynamic ...
3
votes
2answers
429 views

When does creating a .sql backup with mysqldump become too large?

Is there a limit to how large a database can be when executing a .sql backup using mysqldump, or will you run into server problems before that - will the server not be able to take such a large backup ...
2
votes
2answers
7k views

Restore Database script

I have a live database which i would like to create a backup and restore script that will take the "live" database every night, create a back, then drop the existing "testing" database (if any) and ...
1
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1answer
2k views

mysqlbinlog failing with “ ERROR 1032 (HY000) at line 48: Can't find record in `` ” Error

I am facing some issue with PITR restore using mysqlbinlog . It is failing with the following error . # mysqlbinlog mysql-bin.000035 | mysql -u root -p db Enter password: ERROR 1032 (HY000) at ...
14
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3answers
159 views

Transaction Log Backups Serial or Parallel?

We happen to be using SQL Server 2012 Standard Edition. I also happen to use Ola Hallengren's scripts to provide an easy, more flexible framework for doing backups and maintenance. This question ...
10
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4answers
529 views

Using third party tools to backup

Is there any advantages to use Third Party Tools to make Backups ? I'm not referring one in particular but I want to know if someone using them to DB greater than 200 GB. Servers are mostly MSSQL ...
9
votes
3answers
332 views

What is the use of restore headeronly when performing a backup?

When I monitor my backups with the following query: SELECT command, percent_complete, 'elapsed' = total_elapsed_time / 60000.0, 'remaining' = estimated_completion_time / ...
9
votes
1answer
6k views

SQL Server Transaction Backups vs Logs

I've inherited a moderately-sized business-critical SQL Server 2008 database and am trying to wrap my head around backup planning. (I'm a developer, not a DBA.) The way our system is set up right now ...
9
votes
2answers
1k views

A Non-DBA Asks: How to Painlessly Copy/Move a SQL Server instance to another Server via Backup/Restore?

We've just got a new server so I need to copy the existing SQL Server 2008 instance over from the old db box. I normally do this by copying .mdf and log files over and attaching them but I'm not able ...
8
votes
2answers
22k views

What is the use of “Backup set will Expire:” option while creating Backup Database task in Maintenance plan

While backing up the database, I would like to use "Backup set will Expire:" option to delete/overwrite old database backups. I am not able to use this option. Any advice on how to use "Backup set ...
7
votes
1answer
2k views

recover a single mysql database on a busy master-slave replicated system

Looking for a strategy or tool to deal with recovering a single database to a point-in-time in a busy replicated system. I have 12 databases running on 2 MySQL 5.0.77 servers in master-slave ...
6
votes
4answers
6k views

SQL Server 2012 always-on backup, full vs copy-only

I need a quick clarification on copy-only backup vs full backup as it pertains to transaction log numbering and restore if required. I have SQL Server 2012 setup with always on for multiple ...
6
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4answers
17k views

How to increase fast backup and restore of 500GB database using mysqldump?

There is a database A size of 500GB. Tables in database A contains both MyISAM and INNODB tables. MyISAM tables are master tables and Innodb tables are main transaction tables. Backup and restore ...
6
votes
5answers
637 views

SQL Server Backup Process Tuning

I am working for a small company that has 20 full time web sites. And another 20-30 micro sites. We are having issues with the sites freezing every day after the SQL Server Agent backup is running. ...
5
votes
1answer
4k views

How can I fix “Cannot perform a differential backup … a current database backup doesn't exist”?

We recently switched to the FULL recovery model, with full backups being done every weekend, and differentials being taken every day. The problem is, the differential backups don't always seem to ...
5
votes
3answers
3k views

SQL Server 2012 database backup successfully report but no backup file

I have created maintenance plan in SQL Server 2012. And every day, the maintenance plan should backup the database. There is no database backup file when I look in the folder where the backups must ...
4
votes
1answer
6k views

I/O is frozen on Database & also I/O was resumed on Database on daily basis in log with complete Backup

I would like to say that as on daily basis i got the message in my log file. First The I/O is frozen on Database (DatabaseName) message appears in log. The message is like I/O is frozen on ...
4
votes
1answer
2k views

Which are the minimum privileges required to get a backup of a MySQL database schema?

Which are the minimum privileges required to get a backup of a MySQL database schema? I am interested only on the schema, not on the data. Are SELECT privileges required?
4
votes
1answer
4k views

Is Percona xtrabackup the right choice for my 500GB MySQL backup?

I have a MySQL db with 500GB, consisting mainly of Innodb tables, and one big (200GB) MyISAM table. My current backup strategy is copying the db files to an external harddrive. This causes a downtime ...
4
votes
5answers
4k views

Can I restore a database to a point of time without backup?

I have an SQL 2005 database with logging set to FULL but without any backups. Is it possible to restore it to a point of time?
3
votes
3answers
147 views

How can I make a database backup go faster?

I recently attended an interview for my next job and was asked this: How can I speed up the backup of a database sized close to 1TB or 800 GB in SQL Server? My Answer: We can use Database ...
3
votes
1answer
143 views

pg_dump does not honor -n

I'm using pg_dump (9.2 database), to extract one schema and load this into another database (9.4). well, here's the command: pg_dump -f file.sql -F plain --inserts -n schema database Ok. My ...
3
votes
2answers
18k views

Backup Access Database Daily/Weekly

We have a Microsoft Access database split into backend/frontend. What I am looking for is to be able to automatically backup these files on a daily or weekly basis - what is the best way to go about ...
3
votes
2answers
465 views

How to prevent SQL Log from being too full

I have a database that generate a huge amount of transaction per seconds, something like 50-100 transactions/second. Because of this, the log files grows very quickly. The thing is though, that even ...
3
votes
1answer
3k views

PostgreSQL Scheduled Database Backup

For scheduling a daily back up on a postgres database we execute the following command: 0 2 * * * /usr/local/pgsql/bin/pg_dump -Fp -b -U database_name \ > ...
3
votes
1answer
980 views

What is the best practice for backing up a database in Simple mode?

I am trying to create a SQL Job for backing up my database. I want to have: A weekly full backup A daily differential backup Something that will clean up backups that are older that 14 days I ...
2
votes
1answer
85 views

SQL Server Database Migration - Backup/Restore while Original DB still in Production

I have a very large DB in full recovery mode. My SQL Server is 2008 R2. The thing is that I need to migrate to a new server while having the original DB still in production. Both backup and restore ...
2
votes
1answer
108 views

How is my database being backed up?

I'm using SQL Server 2008 R2. Someone else set everything up. I encountered an error today: Autogrow of file 'ASPState_log' in database 'ASPState' was cancelled by user or timed out after 1748 ...
2
votes
1answer
225 views

Backup on an empty SSAS database hangs

I created an SSIS package to iterate through all databases on an SSAS instance. It grabs the DatabaseId using AMO in a vbscript, then generates the XMLA to backup each database. Most databases ...