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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14
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1answer
2k views

How does PostgreSQL handle Checkpoints in the middle of a WAL-enabled backup?

On a PostgreSQL v9.0 I've a WAL archiving system working. So WAL files a regulary archived (when 3 WAL are created or if a WAL is older than 15 minutes). Now I add a binary packup of the PG_DATA ...
0
votes
1answer
402 views

Postgres live backup

Goal: Maintaining a constant live backup of a postgres cluster. In case of cluster failure, backup/Secondary will contain most up to date view of Primary cluster. This is not a hot standby ...
0
votes
1answer
47 views

how to speed up cpu limited mysql database backup

I have a database that has a structure that unfortunately requires having a lot of tables (10k+). It's not possible to change the structure now. The database itself is not very large (<1GB), but ...
0
votes
1answer
131 views

pg_basebackup: could not set compression level -1

When trying to run pg_basebackup I received the following error message: pg_basebackup: could not set compression level -1 (null) using the -z option. I received a similar error message when trying ...
0
votes
0answers
898 views

Oracle EXP Error ORA-12704: character set mismatch

I need to duplicate a Oracle 11g Express Edition database from one computer to another computer. I tried exp sys/password FULL=Y FILE=backup.dump (the idea is to do a imp on the other pc) But it ...
0
votes
0answers
441 views

Error while taking backup in Postgresql

While taking a backup from my PostgrSQL database, it is showing this: pg_dump: Dumping the contents of table "gtab17" failed: PQgetResult() failed. pg_dump: Error message from server: ERROR: invalid ...
2
votes
0answers
215 views

Cold backup database, what files to copy, slow shutdown?

After a broken server installation I am going to backup a mysql database with a cold backup. This is, because I am not able to dump the sql tables and somehow everything is broken. My questions are at ...
0
votes
0answers
418 views

Archive log backup error and backup completed with errors

My prod DB backup completed with errors stating the below error. RMAN-00571: =========================================================== RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ...
6
votes
3answers
12k views

How to restore multiple backups

I'm using ExpressMaint and Windows Scheduled Tasks to create weekly full and daily differential backups of some MS SQL Server 2008 R2 Express databases Weekly fulls expressmaint -S ...
0
votes
0answers
4k views

Restore a backup from SQL Server 2008 R2 to SQL Server 2014 [closed]

How can I restore a backup from an earlier SQL Server 2008 R2 version to SQL Server 2014? The error I get is 38: reached the end of file although the file is not corrupted. Thank you.
5
votes
3answers
732 views

Database Backups of 2GB+

I have a forum which is growing way faster than I could imagine, and my site has been a target for DDoS attacks, NTP attacks, and a bunch of hacking attempts. I am starting to worry that there may be ...
8
votes
3answers
805 views

Restricting users to COPY ONLY backups

I am looking to deploy log shipping in my production environment. This will mean I will have to manage backup chains which could be disrupted by people taking backups to refresh development ...
0
votes
1answer
9k views

Sql Server Backup Job failed

I have a sql agent job setup for taking full backup every night. Last night the job failed with the following error message. Sql Server Error Log Message BackupIoRequest::ReportIoError: write ...
2
votes
4answers
2k views

Automated SQL backup on a timely fashion, & cleaup the database for the backed up data

I need to back up SQL database (historian), on a timely fashion, and then clean up the database by removing the backed up data. I am using MS SQL 2008 (R2), on a Windows XP machine. The biggest issue ...
1
vote
1answer
2k views

Can I use a Percona Xtrabackup backup to restore a single table?

I've been playing around with the Xtrabackup tool for a month now, and I got to admit : it is really powerful ! I'm still testing it to backup database servers between 5 and 150 GB and the ...
1
vote
4answers
226 views

Database growth causing issues sending backup over network

We take a full database backup on our primary SQL Server, and send that file over our network to a remote site where it is recovered on a backup SQL Server. We use this backup database for slow ...
2
votes
0answers
184 views

Sql Server 2012 Enterprise Backup with no file [closed]

We currently have a database which increments 5TB a day. The current backup solution we have uses Avamar, which I believe does a kind of block comparison backup where there is no need for an actual ...
4
votes
1answer
449 views

Do I need to stop the service to back up the database? [closed]

We have several database driven applications using MS SQL Express, Pervasive, MySQL, and some sort of flat file database. PostgreSQL "may" be added later. We have backup software that is VSS aware. ...
2
votes
1answer
177 views

Recovering a partial PostgreSQL archive

I have $PGDATA/base but nothing else. It was taken from an installation after the postgreSQL service was shutdown, so is clean. Is there any way to recreate the other elements in $PGDATA that allow ...
0
votes
1answer
296 views

Slow performance of remote restore

Over the weekend, I was participating in a DR test. On the database side, that meant restoring backups from the production system to the DR system. What struck me as odd about the performance of the ...
31
votes
6answers
4k views

The smallest backup possible … with SQL Server

Daily we ship our SQL Server backups across the WAN. We need to minimize the size of these backups so it does not take forever. We don't mind if our backup process takes a bit longer; as it stands ...
1
vote
1answer
3k views

How to know DB size using backup file without restoring it

Is there anyway so that we can estimated/know size of database using backup file without restoring it?
6
votes
4answers
323 views

Only do log backup if necessary in SQL Server

We have transaction log backups taken every few minutes from many databases. Is there a way to determine if there were any committed transactions since the last backup and only then do a log backup? ...
1
vote
1answer
100 views

What synchronizes two delayed replicas, which is part of the replica set, included in sharded cluster?

Please take a look at my mongodb map at http://postimg.org/image/krzvmep4d/ What synchronizes two delayed replicas, which is part of the replica set, included in sharded cluster? How can I use my ...
0
votes
1answer
2k views

Restoring a SQL Server 2008 R2 backup on SQL Server 2005

I'm getting an error whenever I restore a testing database on SQL Server 2005 that was backed up from SQL Server 2008 R2. It seems that I cannot restore from a higher version of sql onto lower ...
2
votes
1answer
1k views

Database Backup from 2008 R2, Restore on 2012 Failover Cluster Instance

I have a production database server having sql server 2008r2. This is an old server and considering our load, we are moving to a better hardware configuration, Now the new environment is a cluster ...
0
votes
1answer
70 views

Postgresql create database from backup programmaticly [closed]

I got a big problems here. Let's say I got the table A (with columns like id, name etc) in the main database. So when I making INSERT into A I need to create new database lets say B_id. I got .backup ...
5
votes
1answer
962 views

Quick MySQL Backup (1 file per table)

I asked a relevant question few months back and got answer with wide variety of options for backup. But this time I have different scenario and I have got a database with 7 tables and 1 of them has ...
0
votes
1answer
1k views

Is it possible to pipe the result of a mysqldump straight to rsync as the source argument?

Is it possible to pipe the result of a mysqldump straight to rsync as the source argument? Conceptually, I was thinking something like: mysqldump -u root -p database_to_backup > ...
0
votes
1answer
204 views

postgresql backup and recovery

I’m trying to set up backup strategy for a production postgreSQL DB. It will have large amount of data and it should be running 24 X 7. Could you recommend some backup & recovery strategies that ...
4
votes
3answers
693 views

Very high I/O on database during a backup maintenance plan

I've recently been having some hellacious problems with a specific maintenance plan. I found that part of the problem was that I had Shrink and Rebuild Index in my nightly plans, those have since ...
-2
votes
4answers
5k views

how to restore .bkp file in SQL Server [closed]

I have a .bkp file, how can I restore it to SQL Server? I have SQL Server 2008 and SQL Server 2012. Any idea?
1
vote
3answers
441 views

Is bulk-logged recovery model ever a good choice if point-in-time restore is not needed?

Is the Bulk-Logged recovery model in SQL Server ever preferable to Simple if point-in-time restore is never needed? I have read many articles about transaction log models, but cannot find a clear ...
4
votes
1answer
134 views

How dependent are backups on msdb tables like backupset?

I am trying to get some practice making a backup maintenance plan and restoring those backups. I have a script that churns through the most recent full database backup and any subsequent transaction ...
0
votes
1answer
305 views

Postgres Point-In-Time Recovery with a limited point in time

I'm configuring PostgreSQL WAL-based backup for point-in-time recovery. Actually, I don't really need any point in time beyond 1 month ago and don't want to waste time for the logs older than that. ...
1
vote
1answer
71 views

Backups in Availability Groups

In case of async commit setup and the backup preference set to secondary replica. I have observed, in case of high unsent log size, log backup on secondary replica starts failing for that database ...
1
vote
2answers
201 views

Backing up my SQL Server System Databases

I'm trying to create a recurring scheduled job to fully backup the master, msdb and model databases, I'm using the Maintenance Plans for SQL Server 2008 R2, in the "Specific Databases to choose from ...
1
vote
0answers
348 views

What's is the best way to get incremental changes from production to incrementally changed development database?

I came to a new dev team where all development is on the same (instance) of an SQL Server (2005) database once in 1-2 days restored from a current full backup of production database replacing a dev ...
4
votes
4answers
2k views

RSync Database File Deltas in SQL Server 2008

Alright, I feel like this is a terrible idea, but I need some help understanding why this is bad: I'm still working on implementing a disaster recovery/business continuity solution for our ...
1
vote
1answer
672 views

Backup Database (SQL 2000 Compatibility) on SQL Server 2005 with CHECKSUM, but Page Verification TORN_PAGES Detection

I am trying to backup a 250GB database on SQL Server 2005 running in SQL 2000 compatibility mode. The page verification is set to TORN_PAGES detection. So, far the backup has been corrupted when we ...
0
votes
0answers
847 views

How to recover a crashed MyISAM table which myisamchk couldn't recover?

We take db backup by stopping the database and then issuing a tar -zcf on the mysql data directory. When we restore the data directory on another machine and try to start the slave, the mysql error ...
1
vote
1answer
756 views

Restoring backup from mysqldump does not remove additions

I am restoring a backup from a mysqldump and noticing that if I made additions (in the form of new tables) to the database they persist after the restore. I can go back in and remove those tables to ...
1
vote
0answers
379 views

restore using mysqlbinlog failing

While doing restore from a MySQL binary log file, it is failing with the following error . mysqlbinlog mysql-bin.000036 | mysql -u root -p asdb ERROR 1032 (HY000) at line 48: Can't find record in ...
0
votes
1answer
225 views

What does it mean to backup a database

What does it mean to backup a database? My impression is that you would simply dump everything that makes up the database into some format that can be stored externally and used to restore from when ...
1
vote
1answer
145 views

Create database before restore multiple files

I've several database, most of them have multiple files (both data and logs) and multiple diff and trn backups. I've already a restore script (scheduled and working on other server) that takes all the ...
1
vote
1answer
1k views

DB2 - Archive Mode - on what values to set LOGPRIMARY,LOGSECOND,LOGFILSIZ?

we must set our database from CIRCULAR to ARCHIVE mode in order to enable ONLINE backups. Backups will be done every 1 day. Database is now almost 30GB. Database grows approximately 1GB per month. ...
1
vote
2answers
130 views

Backup architecture for frequent backups of business critical DB

We've got a database (mysql) driven application which contains business critical information, were looking at building a system that will allow us to backup the db frequently (every 15 minutes, ...
4
votes
1answer
128 views

Settings for a MySQL backup only slave instance

I have two instances of MySQL running one a server, set up as master and slave. It's all working smoothly together and I'm only using the slave instance for backups to avoid locking up the live ...
0
votes
1answer
542 views

why mysql binlog creating new log file daily

I have started binary logging on MySQL server on my Ubuntu. It start creating log files in /var/log/mysql. My my.cnf configuration is as follows: log-bin="/var/log/mysql/" expire_logs_days=10 ...
7
votes
2answers
4k 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 ...