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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1answer
41 views

Differntial back up: what happens to existing data?

Ok, this is a question borne purely from paranoia. But i want to ask all the same. If I make changes to a db, and then apply a differential back up at a later date, what happens to the changes I ...
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1answer
138 views

SQL Server differential backup LSN values

I'm looking at restoring databases on SQL Server and I'm not understanding something related to the LSNs. Here is a screenshot from the Restore Database dialog in Management Studio for a sample ...
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2answers
206 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 ...
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0answers
20 views

How to group SQL Server files for restoring database [duplicate]

I have a SQL Server database that is creating full backups once a week, differential backups once a day, and transaction log backups hourly. These are being FTP'd to another box, where I would like an ...
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1answer
177 views

ONLINE BACKUP is not performed from the CRON Job on LINUX server (manually it works)

I made a script which executes successfully online backup when it is run manually by the instance owner. Script is the following (two lines originally). #!/bin/bash /opt/ibm/db2/V9.7/bin/db2 ...
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1answer
56 views

DB2 - What is the difference between online backup and AUTO_DB_BACKUP?

We would like to perform online backup. I see that there is one parameter AUTO_DB_BACKUP. I read this article on IBM link for AUTO_DB_BACKUP ...
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2answers
471 views

DB2 ARCHIVE mode - Can all archive logs be deleted after doing the FULL OFFLINE backup?

I am interested in one thing, if I understood correctly. DB2 is in Archive mode (online backups are made and archive logs keep coming which is OK). If I made offline full backup today and I know I ...
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1answer
29 views

Instant File Initialization on Backup drive

I know IFI (Instant File Initialization) is good to have enabled on SQL Servers. How about backup archive locations? We backup our DBs to a local SSD drive (so it backs up quickly), then throughout ...
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1answer
37 views

Percona: Do I need apply-log switch for a weekly full backup and hourly incremental?

I am planning a script to work on our percona. Our strategy is to do full backup weekly but incremental backups every day/hour. I have read innobackupex manual and got confused further as to whether I ...
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1answer
64 views

Shrink log file after configuring backups properly

I had a database that was working in FULL recovery mode but never had transaction log backups done. The consequence of that was the fact that the log file kept growing and now its 10 GB in size. I ...
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2answers
60 views

Is possible to backup database online using rsync?

Some people tell me that the backup database on-the-fly using rsync is possible. I think it is possible but not safe because some log, buffer... is not flushed. Database is being recovered from the ...
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0answers
24 views

Does automated backup performance suffer if backup completion time exceeds the backup window?

Is there anything "special" about the Amazon RDS Automated Backup Window, or is the backup window merely an arbitrary timespan in which the backup is expected to complete? That is to say, if I have ...
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0answers
76 views

Restore MySQL DB from mylvmbackup to .sql dump

Backups of MySQL innodb databases are taken using mylvmbackup and the resulting backup contains the whole mysql folder as per example below: ibdata1 ib_logfile0 ib_logfile1 mysql/ mysql_upgrade_info ...
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1answer
108 views

Oracle Hot Backup Theory

After a hot backup, where all tablespaces are placed in backup mode seperately; i.e. alter tablespace user_data start backup; each datafile will have a different Checkpoint SCN in its header; with ...
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1answer
659 views

pg_restore: [archiver (db)] could not execute query: ERROR: schema “public” already exists

I am using pg_dump / pg_restore to backup and restore a PostgreSQL database, but am getting some error messages (and a non-zero exit status) from pg_restore. I tried a super simple base case (outlined ...
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0answers
33 views

What exactly should I backup in MongoDB when using replica sets?

I have several instances of MongoDB replica set servers with a primary and a failover machine for each replica set. The primary machine makes daily backups by creating an LVM snapshot and copying all ...
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2answers
212 views

Restoring an Oracle Backup Properly

I've been trying to do a proper restore of a database for weeks now and I'm convinced that I'm doing something simple wrong. I took a cold backup of the database before an update to an application ...
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0answers
61 views

Setting up a new db-server with same name and ip. Backup/restore or detach/attach

I'm planning to set up a new Win 2012 server, with SQL server 2014 standard. This server is going to replace our current server, Win 2008R2, with SQL server 2008R2. The name and ip is going to be the ...
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1answer
97 views

PostgreSQL SELECTs not returning correct result following recovery?

I took a copy of the current database from a live slave using pg_basebackup and recovered it to a brand new isolated computer following the instructions in the docs. Once the new database had started ...
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0answers
61 views

Is impossible percona xtrabackup restore backup data on mysqld?

I am testing percona xtrabackup. I hear a lot advantage of it. I have purpose to use it instead of mysqldump. Based on document ...
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1answer
357 views

What are the optimal mysqldump settings?

After some search I ended up with the following settings: mysqldump\ --host=localhost\ --port=3306\ --databases ****\ --user=****\ --password=****\ ...
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1answer
36 views

How to know the problem when i make this Full Backup Scenario?

i'm working new on database administrator and i have some questions if i want to make SQL full backup database every Saturday at 6:00 AM and for some reasons the device was shutdown the questions are ...
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1answer
225 views

How to take backups of MySQL databases, explicitly based on PyMySQL

I am looking for a purely Python solution to take backups of every MySQL database on localhost. I already use PyMySQL to run queries on these databases. Any help is highly appreciated. EDIT After ...
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1answer
51 views

Best Design for this “Sweepstakes” Project?

Hello there fellow developers, Merry Christmas first aff all, and i hope you will have a happy new year soon. :) I was having more or less a problem with an idea that came to my mind. I am currently ...
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1answer
44 views

How to use fsyncLock() safely in backing up a single mongod

I read from mongodb document: important: db.fsyncLock() may block reads, including those necessary to verify authentication warning: When calling db.fsyncLock(), ensure that the connection is kept ...
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1answer
97 views

SQL Native backup MIRROR TO performance

We are moving to SQL Server 2014 Expensive Edition Q1 next year. Right now we are on SQL Server 2005 Standard Edition, so we don't have access to the oh-so-wonderful MIRROR TO option for our backups ...
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3answers
102 views

I do not understand SQL Server Transaction Logs

I understand that a Microsoft SQL Server Database has two components: A database file A transaction log file Whenever I make a change to a table, does it get written to both the database file AND ...
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0answers
52 views

Database backup hangs both in SSMS and XMLA

I am using SQL Server Analysis Services 2008 R2 Service Pack 3. My database was recently upgraded from Analysis Services 2005 and since that time I have been unable to do a backup either from SSMS or ...
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0answers
15 views

MySQL Enterprise Backup Upgrade Error

Today I am upgrading my MEB from Version 3.9 to 3.11. But I got this error. Do I need to upgrade it to MEB 3.10 for me to proceed upgrading to MEM 3.11? Or its needed to install the depedencies ...
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2answers
134 views

Backup status report from multiple server in sql server 2005

Per daily routine activities of DBA, as we know backups are important to be monitored and to make sure they are corrupt free, i am trying to fetch a report to get such status. Moreover, we have SQL ...
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0answers
121 views

How to merge exported SQL Data into restored DB updating only changed rows?

We've just moved two databases from Microsoft SQL Server 2008 instance to another using BACKUP DATABASE on the original system and then RESTORE DATABASE on the new one. Everything went fine but then I ...
0
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1answer
25 views

Removing Components from a backup

Ok, I will start this off by: Yes, I know I should have paid more attention. That being said, I was trying to create a full backup of my DB prior to doing truncation on a number of the tables. When ...
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3answers
308 views

Is it possible to have 2 backup plans for a single database?

Is it possible to have two backup plans ? allow sysadmins to have their own SQL Server 2008 set of backups for a database allow DBAs to have their own separate backup plan We have had issues with ...
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0answers
360 views

How to solve MySql Slave Error 1452 Foreign key constraint fails?

I am site administrator. We use to have a mysql 5.5.40 master(db01) - slave(db02) setup. One day our master server (db01) got down due to hardware failure. So we switched our site to slave (db02) ...
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0answers
25 views

Controlling SQL Backups From Two Machines

I'm far from a DBA, and don't really have a great understanding of backup chains, but I was asked the following question by a network administrator, and wanted to be sure that my answer was correct. ...
2
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1answer
47 views

WAL files are not copied

I'm using postgres 9.3 on Ubuntu 14.04 and I'm currently setting up a WAL backup. These are my changes to the postgresql.conf: [as described here: ...
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2answers
143 views

How to find what frequent and/or large transaction have taken place in MS SQL Server?

Each day is experiencing about 1GB sum total of all the transaction log backups that day, while at the end of that week the Full DB backup is about 180MB. For a business database for buying/selling ...
0
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1answer
18 views

MySQL - Backup new and modified entries only

I am developing a very huge system in Java using Hibernate and MySQL. Now, I want to automate the daily, weekly, and/or monthly replication (backing up) of the data that are stored from the database ...
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1answer
54 views

Can I use xtrabackup to import a database without altering others?

Context: Each time a demo branch is built, I want to download a copy of the prod database and setup it onto the demo server. This way under the MySQL I have X database corresponding to X demos. I ...
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1answer
44 views

Restore back up strategy for history tables

I have historical/log tables which are: very large holds data that is not rarely queried only inserts are performed (constantly, very often) I want to either compressed them or move them to ...
3
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1answer
115 views

Possible RMAN orphan files in backup directory

I am trying to scrape together some space in my Oracle 11g backup directory in AIX. I have deleted obsolete files using RMAN's "DELETE OBSOLETE" command, but I see many (just under 200) files dated ...
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0answers
115 views

Are ZRM (Zmanda Recovery Manager) incremental backups reliable?

I had an issue while restoring incremental backups and I'm wondering if they are reliable. I'm making weekly full backups and daily incremental backups and I needed to restore a single database after ...
2
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2answers
58 views

Sqlserver: Get Meta-Info about TRN file

Is there any way to get the timespan of the data contained in a TRN-File? What I have: A backup of a transaction-log What I need: The timestamp of the first and the last entry inside the log ...
0
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1answer
89 views

WordPress MySQL writes during “Flush Tables With Read Lock” are rejected instead of being queued

I'm running into an odd issue when setting MySQL into a brief read-only mode for backup. Reads continue fine during that "read only" minute, but writes are just rejected instead of being queued to ...
0
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1answer
83 views

How to restore a database to the latest file in a backup set [closed]

USE ICT; GO BACKUP DATABASE ICT TO DISK = 'E:\Backup\ICT.bak' -- Verwijder dit bestand a.u.b. GO RESTORE DATABASE ICT_TEST FROM disk = 'E:\Backup\ICT.bak' WITH REPLACE, MOVE 'ICT' TO ...
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0answers
32 views

MySql backup for certain database contents

So i have a database containing custom functions and cleanup procedures and obviously content under tables which i want to back up using automating script which works but doesn't create a proper ...
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0answers
233 views

Restore from copy of SQL Server backup file produces invalid data error

We have an instance of SQL Server 2008 R2 SP2 sitting in a DMZ. When I back up one of its databases to a drive local to that server, then run a RESTORE VERIFYONLY against the backup file, it declares ...
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1answer
139 views

Combining log shipping and regular log file backups

Following on from my earlier question, I'm trying to set up a combination of Log Shipping and database backup. What I have in place is: Log Shipping set up between my two servers, to run every 5 ...
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2answers
200 views

SQL Backup tuning large databases

I am tuning SQL backups using compression, writing to multiple files, and changing the BufferCount and MaxTransferSize options. I have SQL instance with a 4 TB database and several smaller databases ...
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0answers
66 views

SQL Server : how to decide if FULL backup or DIFFERENTIAL

The following scenario (on SQL Server 2008 R2 and 2012 servers) A co-worker of mine restored another DB into the one our process was trying to create a differential backup for. As I am currently only ...