Backup and snapshot

dear all,
can anyone tell me why a simple snapshot without putting database in backup mode is not efficient?
suppose I have taken a snapshot on all database folders and then back them to tape isn't it like the scenario when a power prolbem occurs?
thanks

user4552742 wrote:
thank you all,
Now suppose I put database in hot backup.
Can I backup the controlfile as well like other files or I have to backup it after ending backup mode?
can you, please explain?
I am preparing a disaster ecovery strategy but I would like to understand how things work and why have I to do things in some ways and not other ways.
best regardsHi,
You can backup control file before or after the backup of datafiles (if there wont be any structural changes during backup).
You should use below command to backup your control file
alter database backup controlfile to ''filename' reuse;Regards
Anurag

Similar Messages

What's the difference between "controlfile autobackup" and "snapshot contro

Hi All,
What's the difference between "controlfile autobackup" and "snapshot controlfile" in RMAN configure ? Both are controlfile backups, what the difference between the controlfiles they backup ? Why there are two of these options ?
thanks

RMAN creates a control file snapshot to perform catalog resync operations. Control file autobackup will automatically create a backup of the control file whenever there are database structure changes.

Need clarification for cold backup and recovery

Hello Everyone ..
I have much confusion on cold backup and recovery topic.
Already i posted a scanario regarding this and i want to know some clarity points to understand.
1. I had cold backup two days before
2. I am creating an object *(EMP)* and inserting some records then issue log switch continiously.
3. Manually i removed all physical files (datafiles , control files , log files , redolog files ...)
4. then i issued STARTUP FORCE MOUNT;
5. here i am getting error identifying control file.
6. cold backup two days before all files restored
6. then i issue recover database using backup controlfile until cancel;
7. i am trying to issue select * from emp; i am getting error
select * from emp
*ERROR at line 1:
ORA-00942: table or view does not existMy QUESTION IS
After cold backup finished , i created emp table ..
when restoring old back " There is no emp table"
*- then , can i recover emp table ? - If so , please explain about this ..*
Note : REF - LINK https://forums.oracle.com/forums/message.jspa?messageID=11056341#11056341
- Above link says what i did ? . In this thread i am asking concept & logic ..
please do NOT consider as "*DUPLICATE*"

When you recover the database using backup controlfile until cancel, you have to apply archived logs. Did you apply all of them?
If the create command was in the online redo, not yet archived, and you lost the online redo, then you won't have it. This is why you want to have redo multiplexed, it is a critical piece.
In some recovery scenarios, if you haven't lost the online redo, you need to specify those files as if they were archives.
It is normally easier to just be sure you have the latest controlfiles and let Oracle figure it out automatically (which is why you want to use online RMAN backups rather than cold backups). But yes, it is important to understand what is going on for different scenarios. I used to have manual standbys, and one of the disaster instruction sets explained to try to get online redo over to the standby to lose as few transactions as possible. That could still be useful for some snapshot hardware type scenarios, assuming the business is too cheap to do proper failovers.

Backup and Restore of Redis Data

My usage of Azure Redis is a cache to store snapshots of data for an event sourced system. We have millions of events stored in persistent storage that are aggregated and saved to redis. This provides us with fast access to the current state of an entity.
However, to rebuild the Redis cache from scratch would take many hours as the number of events in the system is huge and constantly growing.
How in Azure Redis can we backup and restore data in case of failure? For instance, it would be nice to have access to an rdb file and archive it then restore when needed. We tried setting a non-Azure Redis as a slave of our Azure Redis however this does
not work as it seems the Azure Redis doesn't have write access to it's working directory preventing it from writing an rdb file for sync.
What are the recommended approaches to using Azure Redis as persistent storage? How can we backup/restore or even move data from one redis to another.
Thanks!
Drew
Drew Schaeffer

Thanks for the response Mike. The interesting thing is on Saturday this didnt work. Today it looks like it is sync'ing succesfully. Below is the steps and output i saw on Saturday. I started it again today and it looks good so far. I will let it finish the
sync and see what happens now. The redis is about 19gb on a Standard Pricing Tier.
On the non-Azure Redis
1. SET CONFIG masterauth <mykey>
2. SLAVEOF myredis.redis.cache.windows.net 6379
Then on my non-Azure Redis I see the following output. This ouput repeats until i kill the non-azure redis or set SLAVEOF NO ONE.
[3468] 17 Jan 20:27:28.152 # Server started, Redis version 2.8.17
[3468] 17 Jan 20:27:28.153 * The server is now ready to accept connections on port 6379
[3468] 17 Jan 20:27:58.517 * SLAVE OF myredis.redis.cache.windows.net:6379 enabled (user request)
[3468] 17 Jan 20:27:59.294 * Connecting to MASTER myredis.redis.cache.windows.net:6379
[3468] 17 Jan 20:27:59.318 * MASTER <-> SLAVE sync started
[3468] 17 Jan 20:27:59.322 * Non blocking connect for SYNC fired the event.
[3468] 17 Jan 20:27:59.336 * Master replied to PING, replication can continue...
[3468] 17 Jan 20:27:59.345 * Partial resynchronization not possible (no cached master)
[3468] 17 Jan 20:27:59.348 * Full resync from master: ea5954fa6dcd0073585177b26c72f3e228309c2b:49968344771
[3468] 17 Jan 20:28:23.207 # syncRead returned 0
[3468] 17 Jan 20:28:23.208 # I/O error reading bulk count from MASTER: Resource temporarily unavailable
Drew Schaeffer

Differencial backup, Log backup and restore

Hi Team,
A scenario: If I have backups as below.
FullBackup1
LogBackup1
LogBackup2
DiffBackup1
LogBackup3
LogBackup4
If our database crash after logBackup4, Is it really required the DiffBackup1 to recover the db? or will it be possible to recover using the first Full backup and all the 4 log backups? Here I did not considered tail of log.
Thanks,
Ashru
MCTS, http://asharafaliptb.wordpress.com

You do not need all backups. A database can be recovered to a point in time as long as a complete chain is present.
A full backup will not break the log chain.
A differential will not break the log chain.
A snapshot will not break your log chain unless you revert it, where by it will rebuild the log.
Full01
Tran01
Diff01 (Based on Full01)
Tran02
Diff02 (Based on Full01)
Tran03
Full02
Diff03 (Based on Full02)
Tran04
Diff04 (Based on Full02)
Tran05
Full03
Diff05 (Based on Full03)
Tran06
Diff06 (Based on Full03)
Tran07
A. Starting from any full backup, then apply all transaction logs.
b. Starting from any full backup, then apply any differential based on that full, then apply all transaction logs post that differential.
Note a differential is tied to the full backup that preceded it. That is to say Diff06 can not be used with Full02.
Also only one differential would be applied, you could choose either Diff05 or Diff06 to apply to Full03.
Jon

Error in Oracle Database Backup and Recovery User's Guide 12c Release 1 (12.1) E17630-13

on page 88 of the "Backup and Recovery User's Guide 12c Release 1 (12.1) E17630-13", the example 5-1 SHOW ALL Command is the same of the "Backup and Recovery User's Guide 11g Release 2 (11.2) E10642-06" on page 82 and that output is related to a Oracle Database 11g version (the 10g doesn't print the first line "RMAN configuration parameters for database with db_unique_name PROD1 are:").

My test cases here:
Database administrator workshop: Differences in default RMAN configuration settings between 12c and 11g
{code}[oracle@vsi08devpom ~]$ export ORACLE_SID=CDB001
[oracle@vsi08devpom admin]$ sqlplus system/oracle@CDB001
SQL*Plus: Release 12.1.0.1.0 Production on Thu Sep 26 09:10:50 2013
Copyright (c) 1982, 2013, Oracle. All rights reserved.
Last Successful login time: Tue Jul 16 2013 13:43:48 +02:00
Connected to:
Oracle Database 12c Enterprise Edition Release 12.1.0.1.0 - 64bit Production
With the Partitioning, OLAP, Advanced Analytics and Real Application Testing options
SQL> show con_name
CON_NAME
CDB$ROOT
[oracle@vsi08devpom ~]$ rman target /
Recovery Manager: Release 12.1.0.1.0 - Production on Thu Sep 26 09:12:42 2013
Copyright (c) 1982, 2013, Oracle and/or its affiliates. All rights reserved.
connected to target database: CDB001 (DBID=4134963396)
RMAN> show all;
using target database control file instead of recovery catalog
RMAN configuration parameters for database with db_unique_name CDB001 are:
CONFIGURE RETENTION POLICY TO REDUNDANCY 1; # default
CONFIGURE BACKUP OPTIMIZATION OFF; # default
CONFIGURE DEFAULT DEVICE TYPE TO DISK; # default
CONFIGURE CONTROLFILE AUTOBACKUP ON; # default
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '%F'; # default
CONFIGURE DEVICE TYPE DISK PARALLELISM 1 BACKUP TYPE TO BACKUPSET; # default
CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default
CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default
CONFIGURE MAXSETSIZE TO UNLIMITED; # default
CONFIGURE ENCRYPTION FOR DATABASE OFF; # default
CONFIGURE ENCRYPTION ALGORITHM 'AES128'; # default
CONFIGURE COMPRESSION ALGORITHM 'BASIC' AS OF RELEASE 'DEFAULT' OPTIMIZE FOR LOAD TRUE ; # default
CONFIGURE RMAN OUTPUT TO KEEP FOR 7 DAYS; # default
CONFIGURE ARCHIVELOG DELETION POLICY TO NONE; # default
CONFIGURE SNAPSHOT CONTROLFILE NAME TO '/opt/app/oracle/product/12.1.0/db_1/dbs/snapcf_CDB001.f'; # default{code}
{code}
[oracle@localhost orcl]$ rman target /
Recovery Manager: Release 11.2.0.2.0 - Production on Wed Sep 25 08:12:17 2013
Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.
connected to target database: ORCL (DBID=1229390655)
RMAN> show all;
using target database control file instead of recovery catalog
RMAN configuration parameters for database with db_unique_name ORCL are:
CONFIGURE RETENTION POLICY TO REDUNDANCY 1; # default
CONFIGURE BACKUP OPTIMIZATION OFF; # default
CONFIGURE DEFAULT DEVICE TYPE TO DISK; # default
CONFIGURE CONTROLFILE AUTOBACKUP OFF; # default
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '%F'; # default
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE SBT_TAPE TO '%F'; # default
CONFIGURE DEVICE TYPE DISK PARALLELISM 1 BACKUP TYPE TO BACKUPSET; # default
CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default
CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE SBT_TAPE TO 1; # default
CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default
CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE SBT_TAPE TO 1; # default
CONFIGURE MAXSETSIZE TO UNLIMITED; # default
CONFIGURE ENCRYPTION FOR DATABASE OFF; # default
CONFIGURE ENCRYPTION ALGORITHM 'AES128'; # default
CONFIGURE COMPRESSION ALGORITHM 'BASIC' AS OF RELEASE 'DEFAULT' OPTIMIZE FOR LOAD TRUE ; # default
CONFIGURE ARCHIVELOG DELETION POLICY TO NONE; # default
CONFIGURE SNAPSHOT CONTROLFILE NAME TO '/home/oracle/app/oracle/product/11.2.0/dbhome_2/dbs/snapcf_orcl.f'; # default
{code}

How do you backup and restore Boot Camp?

I thought I'd drop by and ask my perenial question: How do you backup and restore Boot Camp?
I'm running Windows 7 if it matters, on a MBPn 17 2010 core-i7 and my daughter will soon be running on a MBP 13 2011 core-i7.
I'm currently using SuperDuper! and Time Machine for the Mac side, and am backing up using Disk Utility capturing the entire Win7 partition but have no confidence that it will work if I restore it.
What does everyone here use, and have you successfully restored your Windows 7 environment?

For me, Paragon Hard Disk Manager Suite 2011.
It contains Clone OS and other tools, for $49.
I'm not sure Paragon Backup is "Apple Boot Camp" friendly or not.
All available Paragon Hard Disk Management technologies are available in onesuite.
Hard Disk Manager Suite 2011
While lack of mention of Apple Boot Camp in System Backup may not be an issue, I have never used it. Paragon also has volume snapshot and other Mac OS tools - but then they are not all offered in a Suite to provide NTFS, HFS, Mac repair, etc.
System Backup PARAGON
Top 10 Apple Articles| Paragon Software Blog Apple Tips and Tricks
Lion will have to modify the partition tables to add its own Windows 7-ish system recovery partition, so I would definitely get a good backup strategy in place - and tested - ahead of time. Contrary to the "shouldn't have any impact" I always see an impact, and also re-initialize drives when a new OS comes out (though maybe wait for the .2 release).

I restored my ipod from a previous backup and I lost all of my photos but it still displays that I have 200 whatever photos, I just cant veiw them. Please help me.

I restored my ipod from a previous backup and lost my photos. The funny thing is, the photo app says that I still have 200 something photos I just can't view them. My iPod says: Unlock your iPod to view your photos.-What does this mean? How can I fix it?

After you restore from backup, you MUST sync to restore your iTunes content. No iTunes content is included in the iPhone backup. Your apps should be in your iTunes library, just sync them back to your phone. If for some reason your apps are not in your library, you can re-download them for free:
http://support.apple.com/kb/ht2519

How can I move the download backups and backups folder to a new location

I am using Lightroom 4.3 on a windows 7 64 windows computer with two hard drives. One dedicated to running programs and the larger one for storage of all my other stuff. Well my backups and download backups folders are on the smaller drive and I need to move them to the other larger drive. Can I do this without totally freaking Lightroom out? Thank you so much for your help.

I am not familiar with the technical term "freaking Lightroom out", however, Lightroom doesn't care where the backups are. You can do anything you want with them, and Lightroom will work fine.

How do i use the recovery disks and backup and restore my laptop in a new HDD without losing OS lic?

I am running a HP-DV6 6090ee laptop with windows 7 Home Premium 64bit OS. This problem started from last evening.
I am getting a "Smart Hard disc error" error message before boot and ater booting windows saying that my HDD is having problems and i need to backup and check the hdd.
After checking i found that i have a corrupted hdd and i am going to replace with a new one.
I need to know the following :
> How do i restore my windows license and my antivirus license in the new hdd?
> i dont currently have a OEM HP OS cd. can i use any windows 7 cd??
> at what stage should i use the recovery disk i created from the recovery partition be used? Whats its specific use?
I really appreciate any quick response as my current HDD is running out of life.
Regards
A

See these 2 Links...
Syncing to a New Computer...
https://discussions.apple.com/docs/DOC-3141
Recovering your iTunes library from your iPod or iOS device
https://discussions.apple.com/docs/DOC-3991

HT4528 My apps store will not go online with verizon network, but on wifi it works. I am on an iphone 4, verizon. I tried to do a complete, backup and restore on the phone 1 day before i noticed this problem, The backup finished the RESTORE would fail c

My apps store will not go online with verizon network, but on wifi it works. I am on an iphone 4, verizon. I tried to do a complete, backup and restore on the phone 1 day before i noticed this problem, The backup finished but the RESTORE would fail I had an error, could not access Apple server ( some server name I cant remember).
I have plenty of space available on the iphone,
8gb free,
ios version- 6.1.3 ( 10B329)
carrier - Verizon 14.0
Modem Firmware - 3.0.04
Can someone help.
I tried doing my backup restore on the same computer as I once did a year ago. and THis time I cant do the restore on the iphone.
computer osx is 10.5.8
itunes version 10.
I do not wish to go to ios 7 at this time.

Settings > General > Reset > Reset Network Settings.
Basic troubleshooting is reset, restart, restore (first from backup then as new). Try each of these in order until the issue is resolved.
If the issue continues, contact the carrier to troubleshoot the network connectivity issues.

Updated to an iphone 4s from iphone 4. Did backup and sync but some apps have not been copied to the 4s although they do show up on the iphone4. How can I get my missing apps?

Updated to an iphone 4s from iphone 4. Did backup and sync but some apps have not been copied to the 4s although they do show up on the iphone4. How can I get my missing apps?

Download Past Purchases
http://support.apple.com/kb/HT2519
Log into iTunes using the account the Purchase was made with... Click on Buy... and a notice will come up saying you already have it... do you wish to download it again... Click Yes...

Music wont sync on my new iphone 4s. Restored it from a backup and now there's no music on it. In the music tab it says: Thomas iPhone has access to music on iCloud. Songs can be fetched via WIFI or a mobile network. What to do?

Restored it from a backup and now there's no music on it. In the music tab it iTunes says: Thomas iPhone has access to music on iCloud. Songs can be fetched via WIFI or a mobile network. The pnly thing I can chose to sync are voice memos.
What can I do?

If you want all the songs from an artist on your phone you can to to the artist view, tap on the artist, scroll to the bottom of the list and you will see a Download All button. This works for playlists and albums too (scroll to the bottom and tap the Download All button). I suppose if you wanted all your music on your phone you could create a smart playlist in iTunes on your computer that would contain all your music, upload it to iTunes match (Store>Update iTunes Match), and then you would get a Download All button at the bottom of this playlist on your phone to download all your songs.

ITunes will not let me backup and sync to new phone encrypted password??

iTunes will not let me backup and sync to new phone encrypted password?? I've never set a password for my old iPhone 3gs but tried my old Apple ID sign-in passwords to no avail. I've simply sat here so frustrated....my husband sync'd his new iPhone 4 no problem, somehow the checkbox shows Encrypted password and I'm at a loss on how to change this/find the password and transfer my old backup onto my new phone so I can use it. Can anyone help? Tnx

John,
buy an iTunes Music Card and redeem it to your account - the "none" option should be available then.

Not able to sign into Blackberry Protect. Backup and Restore function not working. "Your device isn't associated with a Blackberry ID"

Not able to sign into Blackberry Protect. Backup and Restore function not working. Message is: "Your device isn't associated with a Blackberry ID." My Blackberry Messenger and Blackberry World is working fine so I am sure its not an ID issue on the phone. I can sign into Link, Blackberry.com and Protect. I see my device in Protect but cannot send messages or view it on a map. Times out with cannot reach device message. BB Protect on Device has a swirling circle beside the on/of switch. Cannot turn off.
I have deleted Link and re-installed.
I have reset phone to default(factory) and signed in.
OS level is 10.2.1.3062
BB Link is 1.2.3.56
Solved!
Go to Solution.

I managed to figure this out myself. I had to delete the device from the Blackberry Protect website. protect.blackberry.com. I wiped my device again and signed in with my Blackberry ID. I dont know if the step of wiping was necessary as I did not try my backup with the current configuration on the device following the delete. Restore is in progress for me!

Backup and snapshot

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