Daily TM Backups

TM working OK except that........my first backup was 12th November and it has kept a weekly backup all the way to 25Th December and every day since then. It is not collapsing down to weekly or monthly backups since Christmas Day?
I thought that was automatic. Any ideas out there ?
Bill

What you have sounds about right. Going in the opposite direction from the one you described you should have hourly backups for the last 24 hours, daily backups for the last month (Apple says, I'm coming to the view that it's actually 30 days) and weekly beyond that as far as you have disk space for. It never goes to monthly backups.

Similar Messages

  • Daily database backup runnig on RAC 10.2.0.3 with two Solaris nodes & ASM

    Hello,
    I'm confused about making daily incremental RMAN backup of a database runnig on Oracle RAC 10.2.0.3 on two Solaris nodes and ASM.
    Databases cannot be stopped for backup and point in time recovery is needed.
    Please correct me if I am doing wrong:
    1) Backup must be Weekly database Level 0 and Daily database Level 1 is appropriate.
    2) Is best to use a Flash Recovery Area (FRA) - I've setup one on a separate ASM volume. I have enough space to do the backup on FRA.
    3) I am confused about the number channels I need to use. Do I need to use separate RMAN backup channels for each node or I can just leave the default:
    CONFIGURE DEVICE TYPE DISK PARALLELISM 1 BACKUP TYPE TO BACKUPSET; # default
    4) Below are the RMAN scripts I plan to use for
    - Weekly database backup Level 0:
    #!/usr/bin/ksh
    echo BACKUP FULL: $ORACLE_HOME/bin/rman target / nocatalog log ${LOGFILE} append
    $ORACLE_HOME/bin/rman target / nocatalog log ${LOGFILE} append << eof
    run {
    backup incremental level 0 database TAG bkp_level0_200906010;
    SQL 'alter system archive log current';
    backup archivelog all;
    delete noprompt obsolete;
    exit;
    eof
    - Daily database backup Level 1:
    #!/usr/bin/ksh
    echo BACKUP INCREMENTAL: $ORACLE_HOME/bin/rman target / nocatalog log ${LOGFILE} append
    $ORACLE_HOME/bin/rman target / nocatalog log ${LOGFILE} append << eof
    run {
    backup incremental level 1 database TAG bkp_level1_20090611;
    SQL 'alter system archive log current';
    backup archivelog all;
    delete noprompt obsolete;
    exit;
    eof
    I'm I doing things wrong?

    Show also the parameter I have set for RMAN:
    node1:oracle$ rman target /
    Recovery Manager: Release 10.2.0.3.0 - Production on Tue Jun 9 23:46:05 2009
    connected to target database: ORCL (DBID=1198388159)
    RMAN> show all;
    RMAN configuration parameters are:
    CONFIGURE RETENTION POLICY TO REDUNDANCY 7;
    CONFIGURE BACKUP OPTIMIZATION ON;
    CONFIGURE DEFAULT DEVICE TYPE TO DISK; # default
    CONFIGURE CONTROLFILE AUTOBACKUP ON;
    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 ARCHIVELOG DELETION POLICY TO NONE; # default
    CONFIGURE SNAPSHOT CONTROLFILE NAME TO '/u01/oracle/product/10gr2/db/dbs/snapcf_orcl1.f'; # default
    Showing some instance parameters on node1:
    SQL> show parameter recovery;
    NAME                                 TYPE        VALUE
    db_recovery_file_dest                string      DGFRA+
    db_recovery_file_dest_size           big integer 300G
    recovery_parallelism                 integer     0
    SQL> show parameter archive;
    NAME                                 TYPE        VALUE
    archive_lag_target                   integer     0
    log_archive_config                   string
    log_archive_dest                     string
    log_archive_dest_1                   string
    log_archive_dest_10                  string      location=use_db_recovery_file_
    dest
    log_archive_dest_2                   string
    log_archive_dest_3                   string
    log_archive_dest_4                   string
    log_archive_dest_5                   string
    log_archive_dest_6                   string
    NAME                                 TYPE        VALUE
    log_archive_dest_7                   string
    log_archive_dest_8                   string
    log_archive_dest_9                   string
    log_archive_dest_state_1             string      enable
    log_archive_dest_state_10            string      enable
    log_archive_dest_state_2             string      enable
    log_archive_dest_state_3             string      enable
    log_archive_dest_state_4             string      enable
    log_archive_dest_state_5             string      enable
    log_archive_dest_state_6             string      enable
    log_archive_dest_state_7             string      enable
    NAME                                 TYPE        VALUE
    log_archive_dest_state_8             string      enable
    log_archive_dest_state_9             string      enable
    log_archive_duplex_dest              string
    log_archive_format                   string      %t_%s_%r.dbf
    log_archive_local_first              boolean     TRUE
    log_archive_max_processes            integer     2
    log_archive_min_succeed_dest         integer     1
    log_archive_start                    boolean     FALSE
    log_archive_trace                    integer     0
    remote_archive_enable                string      true
    standby_archive_dest                 string      ?/dbs/arch

  • Daily export backup (via datapump) of a 600GB production database

    Hi Guys,
    I have a 600GB DB.
    10G Database.
    Currently I have daily rman backup to tape.
    Based on your experience, should i bother to perform a daily export of production database of such size?
    Do u think it's useful?
    thanks

    Fran wrote:
    All depends, what do you want to do? Do you have enough space to save a backup and export daily?
    In my opinion with one backup is enough to save your database. I'm sorry, I can't agree with that. I've been in situations where the first, second and THIRD backup sources have been unavailable in the event of a Production restore. I had to go to Plan D and cross my fingers (and sweat a lot). That might be overkill, but you should never rely on just one backup method/source for Production data.
    Not only that, but, obviously, you can also use an export of the data and import into another database or a schema inside the database in case you need to address any logical corruption. We also use the exports to refresh test databases.
    We have many similar sizes of databases and we take exports weekly, instead of daily. An export will be an incomplete backup, obviously, though you can ensure consistency by giving it an SCN to use as a datapoint. You can also run Data Pump in parallel which does speed things up.
    If you use it as part of your backup strategy, I'd make sure I had regular backups of the parameter file and the controlfiles (both binary and trace). I'd also make sure I had regular txt files showing the necessary information for the tablespaces and the datafiles which you can use to recreate the files in case you needed to.
    Mark

  • Batch file to run daily database backup

    Our company has just started using an Oracle database for a third-party software. I am currently performing a manual daily database backup through the dos command prompt (exp.exe "system_id"\password@"database" parfile=export_parameter.txt). This creates and .dmp and .log file for the database backup.
    Does anyone know of a batch file or another method that I can use to perform an automatic daily backup of my database?
    I would really appreciate your input. Thanks.

    Hi,
    Put your exp command into a .bat file, and schedule it by AT dos command (or WINAT, if you have it).
    hth
    Paolo

  • Script for daily Incremental Backup with Weekly full back?

    Hi Can abybody plz give me the scrip for the daily incremental backup and weekly full backup.
    Do we need 2 different scripts each for Incrmental and Full Backup or one will do.
    Thanx in advance
    Gagan

    I will suggest you always
    -backup archivelog daily when after yours backup database completion
    -keep two days archivelog out of yours database storage to others device or
    always take frequent archivelog to tape cartrideg after an hour depends yours
    database activity pace.
    You should also include archivelog backup within these backup scripts to others teriotry device i.e tape cartridge as well keep frequent archivelog backup if you think yours backup storage space is an issue or if you dont trust on yours backup storage media,keep an alternate tape cartridge for archivleog for frequent archivelog backup after every one hours depends the pace of yours database activity.Either backup archivelog frequently or multiplex the archvivelog to other devices.
    Now you probably may confuse thats why i need archivelog backup command within this script when i am going to take incremental/full backup, its due to some thing happened with yours last backup got corrupted then you have alternate to restore before last backup.
    Mon      Incremental + Archivelogs
    Tue       Incremental + Archvielogs
    Wed      Yours Database files got smokesWhat will you do
    You will restore Tue backup and will apply alls redo from archivelogs which are generated to other devices yours data chances to be lost is minumum.You may lose only the current archivelog which is not yet to be log switched.If yours archivelog destination devices may corrupt then you have alternate to restore from tape cartridge.
    If yours Tue backup cannot be restored even though you validate it after backup then you will have alternate to restore monday backup and you have backup of tue archivelog as well yours two days archivelog is also at another device then you may also recover the database till before crash.In this case you may lose only the current archivelog which is not yet to be log switched.
    You cannot pile up archivelog to others device cause they begin to take a serious issue on disk thats why i mentioned two days archivelog to other device.
    I hope now you clear why archivelog backup is essential with daily backup either its incremental or non incremental.
    Khurram

  • Taking daily rman backup of archivelogs

    Hi,
    Technical info:
    OS: Windows 2003 EE
    DB: Oracle 10g EE v. 10.2.0.3
    DB size: 30 GB
    I need help to create a rman script or suggestions for creating a Job in Grid Control.
    I want to take a daily (monday to friday) rman backup of archivelogs in the time interval 9 AM to 5 PM. The script should be run every 2 hours. I want the script to remove the archivelogs that are older than 4 days. The retention policy is 9 days.
    Any suggestions will be very much appreciated.

    Hi,
    Yes, I have realized that I can create different jobs in Grid Control one for each day and each time: for example: at 9 AM, 11 AM, etc until 5 PM.
    Each job performs a backup archivelog and removes those backups that are older than 4 days.
    But I have to create 25 jobs (5 jobs for each day).
    Is there a simpler way to achieve the same result?

  • Daily export backup

    Hi,
    I have production & DR database of 350gb version 10.2.0.4 on aix 5.3 platform.
    In morning time after completion of daily batch, we are taking export backup (by stopping application services till application is not available for users) by using datapump utility which is taking 2 to 2.30 hrs to completes.
    After that we have starting the application services and then only application available for users.
    This export backup dump we are daily using for restoration on another development server.
    Kindly help me, is there any option to avoid export backup time so that it will not affect buisness time.
    and also i can do daily restoration on development server.
    Please help.
    Regards,

    In morning time after completion of daily batch, we are taking export backup (by stopping application services till application is not available for users) by using datapump utility which is taking 2 to 2.30 hrs to completes.
    After that we have starting the application services and then only application available for users.
    This export backup dump we are daily using for restoration on another development server.
    Kindly help me, is there any option to avoid export backup time so that it will not affect buisness time.
    and also i can do daily restoration on development server.if you want complete database refresh?
    you can use STREAMS.
    If certain schema/objects you can use MViews.

  • Weekly?  Daily?  backups

    I have some possibly dumb questions about Time Machine. My weekly backups, which go back to May, 2008, are always from a Friday. Is a weekly backup simply one of the daily backups from that week? Which one? Or does it somehow incorporate file changes from all daily backups from that week?
    Why Friday? Are everyone's weekly backups done on Friday, or is that because my first one was on a Friday (I don't know if it was, but maybe).
    Similarly, is a daily backup simply one of the hourly backups? If so, which one? The last one of the day, or ?
    Thus, if I create a file on Tuesday and delete it on Thursday, will it "miss" my weekly backup? If I leave it there over the weekend then will it be included?
    I often use TM as a casual archiving system. Serious files get saved in other ways, and I use SuperDuper as well. But sometimes I just want to have TM contain certain things for easy retrieval.

    radio50 wrote:
    I have some possibly dumb questions about Time Machine. My weekly backups, which go back to May, 2008, are always from a Friday. Is a weekly backup simply one of the daily backups from that week?
    Yes.
    Which one?
    The first of the day.
    Or does it somehow incorporate file changes from all daily backups from that week?
    Not exactly. Each backup is, in effect, a full backup. I know that seems odd, but it's true. See [How Time Machine works its Magic|http://web.me.com/pondini/Time_Machine/Works.html] for an explanation. When Time Machine "thins" expired backups, it simply deletes them. But each remaining one is still a full "snapshot" as of the date & time of the backup.
    Why Friday? Are everyone's weekly backups done on Friday
    No. And there's nothing special about a weekly backup, other than being kept longer.
    is that because my first one was on a Friday (I don't know if it was, but maybe).
    Yup. Mine are Thursdays.
    Similarly, is a daily backup simply one of the hourly backups?
    Yes.
    If so, which one? The last one of the day, or ?
    The first of the day.
    Thus, if I create a file on Tuesday and delete it on Thursday, will it "miss" my weekly backup?
    Yes. The first backups of Wednesday and Thursday will be kept for a month; then deleted.
    If I leave it there over the weekend then will it be included?
    Yes, the first backup of the week will be kept as long as there's room on the drive.
    I often use TM as a casual archiving system. Serious files get saved in other ways, and I use SuperDuper as well. But sometimes I just want to have TM contain certain things for easy retrieval.
    Yes, that's exactly what it's designed to do. So the backups of anything that was on your system for at least 24 hours will be kept for at least a month; anything that was on your system for at least a week will be kept as long as there's room.

  • RMAN weekly full backup and daily incremental backup script.

    Hallo! I would like to implement an Oracle 10g database backup policy where every Sunday night at 10 pm, a hot full compressed database backup is done, for every other day i.e. Monday to Saturday, a daily incremental compressed backup is done also at 10 pm.
    If anyone as an RMAN script that can perform such a backup, please provide me with it.
    Thanks.

    4joey1 wrote:
    Hallo! I would like to implement an Oracle 10g database backup policy where every Sunday night at 10 pm, a hot full compressed database backup is done, for every other day i.e. Monday to Saturday, a daily incremental compressed backup is done also at 10 pm.
    If anyone as an RMAN script that can perform such a backup, please provide me with it.
    Thanks.I would suggest you to try it by your own
    Use DBMS_SCHEDULER or cron job (I hope you're using Linux) to create a schedule which invokes rman script to take backup you want
    Try it and we'll help you
    "Give a man a fish and you feed him for a day. Teach a man to fish and you feed him for a lifetime"
    Kamran Agayev A.
    Oracle ACE
    My Oracle Video Tutorials - http://kamranagayev.wordpress.com/oracle-video-tutorials/

  • Daily Online Backup Error

    Hi Experts,
    Backup platform : HP Storage Data Protector Manager (HP UX B.11.31)
    Backup status Error : 0005 Error during processing
    Detail log:                    bedrppqy.dbv                                                                               
    BR0051I BRBACKUP 7.00 (34)                                                                               
    BR0055I Start of database backup: bedrppqy.dbv 2010-07-17 15.00.44                                                
    BR0484I BRBACKUP log file: /oracle/EN1/sapbackup/bedrppqy.dbv                                                     
    BR0477I Oracle pfile /oracle/EN1/102_64/dbs/initEN1.ora created from spfile /oracle/EN1/102_64/dbs/spfileEN1.ora  
    BR0101I Parameters                                                                               
    Name                           Value                                                                               
    oracle_sid                     EN1                                                                               
    oracle_home                    /oracle/EN1/102_64                                                                 
    oracle_profile                 /oracle/EN1/102_64/dbs/initEN1.ora                                                 
    sapdata_home                   /oracle/EN1                                                                        
    sap_profile                    /oracle/EN1/102_64/dbs/initEN1.sap                                                 
    backup_mode                    ALL                                                                               
    backup_type                    online                                                                             
    compress                       no                                                                               
    exec_parallel                  0                                                                               
    system_info                    en1adm/oraen1 db08 HP-UX B.11.31 U ia64                                            
    oracle_info                    EN1 10.2.0.2.0 8192 59019 6475811945 db08 WE8ISO8859P1 AL16UTF16                   
    sap_info                       620 SAPR3 EN1 Z1424339864 R3_ORA 3020032944                                        
    make_info                      hpia64 OCI_102 May 31 2008                                                         
    command_line                   brbackup -u / -jid VERIF20091031150000 -c force -w only_dbv -p initEN1.sap -m ALL  
    BR0116I ARCHIVE LOG LIST before backup for database instance EN1                                                  
    Parameter                      Value                                                                               
    Database log mode              Archive Mode                                                                       
    Automatic archival             Enabled                                                                            
    Archive destination            LOCATION=/oracle/EN1/oraarch VALID_FOR=(ALL_LOGFILES, ALL_ROLES) DB_UNIQUE_NAME=EN1
    Archive format                 EN1arch1_%s_%t_%r.dbf                                                              
    Oldest online log sequence     59016                                                                               
    Next log sequence to archive   59019                                                                               
    Current log sequence           59019            SCN: 6475811945                                                   
    Database block size            8192             Thread: 1                                                         
    Current system change number   6475821316       ResetId: 696187969
    BR0056I End of database backup: bedrppqy.dbv 2010-07-17 17.00.18    
    BR0280I BRBACKUP time stamp: 2010-07-17 17.00.19                    
    BR0054I BRBACKUP terminated with errors  
    Please help..
    Regards
    shah

    Hi,
    Can you please post detail DB13 log ?
    Backup status Error : 0005 Error during processing
    Have you done any change in init<SID>.sap or in tape device connections ?
    Check your device configuration (tape) in init<SID>.sap.
    Also check if your tape device is working properly..
    Regards.
    Rajesh Narkhede

  • Daily Backup for Boot Camp partition

    I'm looking for a Windows software to perform daily incremental backups from my Boot Camp partition to an external USB drive. It should also be possible to restore the COMPLETE Boot Camp partition from that backup in case of a hard drive failure. (It's NOT necessary that various versions of files are kept around-the-clock like Time Machine does. It's also not necessary that the backup itself is bootable.)
    I've tried Genie TimelIne, but unfortunately it wasn't able to manage a complete restore. The taskbar was missing, no applications were installed (only present), settings were missing after the restore..., so I had to manually install nearly everything.
    I've heard "Macrium Reflect" should be better. Is this true or does anyone have another good tip?
    BTW I'm not looking for a solution to backup from the Boot Camp partition to the OS X partition and I don't want to create a complete clone every day.
    Thanks for your help!

    coxorange wrote:
    A bit difficult to test such a software including worst case recovery if you can't dispense with the concerned computer temporarily. And VERY time-consuming!! Hence I asked for personal experiences.
    Well,  Anyone elses personal experience won't mean much to you unless they have the same setup as you, so asking others for personal experience is as much of a crap shoot for you as doing it yourself.  I went through lots of testing several years ago on my first MacBook Pro, but almost none of that testing is valid for my current machine.  With the variations in machines, and machine configurations, what works for someone else might not work for you, and what might work for you might not work for someone else.  I learned this when I was testing Colnexzilla as a possible backup/cloning tool.  It worked fine on my MacBook Pro, but wouldn't work properly for a number of other users.
    coxorange wrote:
    What do you mean I'm confusing?
    I always wrote about the Boot Camp partition.
    I agree that what you are asking for seems rather confusing.  You talk about backing up your data on your Windows partition, and you talk about performing incremental backups.  The WIndows 7 Data backup utility it perfect for tasks like that.  It's when you start wanting to perform disk image backups, and then ontop of that perform incremental image backups of your Windows partition that things get challenging and confusing.  Since you aren't clear about what scheme you want to use, it is hard to answer with a "clear answer" and not get confused by what you seem to be asking.
    coxorange wrote:
    As far as I know that's not enough to perform incremental backups including EVERYTHING on the Boot Camp partition.
    If you use the Windows 7 data backup and perform incremental backups, you will have a backiup of all your data from the Windows partition.  Isn't that want you want?  If you want to perform a restore, it will not restore you back to a bootable drive, but it will have all your data and files backed up.  If you want to perform a partition backup image, and make those backups incremental nightly, it might be possible.  Since you are talking about a Boot Camp partition on a Mac here, you also need to clarify if you want this backup to run when teh system is booted into Windows, or when teh system is runnign MacOS, or ifit is acceptable to boot from yet another media for the backup purposes. 
    At this time, I'm not sure that any software exists which can make backup image of your Boot Camp/Windows partition when runnign MacOS that will make a backup image that cna restore to a bootable volume and can do incremental backups.  There are few, if any backup tools that will run runder native Windows on your Boot Camp partition that will make an image file backup that can do incremental backups, and also allow you to restore to a bootable partition.  I beleive that the Paragon software is one of the very few that can do this.  I have tried and successfully made backupns and restores from backup disk images using custom boot drives for CloneZilla, and the Paragon Drive Backup tool.  I don't believe that CloneZilla will do inremental backups, and I'm not sure about the Paragon software as I stopped using Boot Camp about 1.5 years ago when I upgraded to my current MacBook Pro.  Now with this system, I don't run native Windows, I only run it virtualized using Parallels Desktop and VMWare Fusion.  For both of those, I get a full system backup with each MacOS backup I take, since the Windows File System is virtualized and stored entirely in files on my MacOS partition.

  • Co-location for daily backup

    I have created a protection group for file server and taking backup of a share on tape drive.
    under protection method--> I chose I want short-term protection using : tape
    retention range: 1 week
    frequency of backup: daily
    backup mode: full and incremental
    so full backup on Saturday and other days incremental backup.
    I have around 700 GB data size.
    I have shortages of tape. from recovery option: I saw in this month on 12thOct, on Saturday it run full backup. It took one tape [say tape 1]
    on the next 6 days it run incremental backup on another tape.[say tape 2]
    again on Saturday for full backup it took tape 3 [tape 3]
    again to run incremental backup it is asking for free tape. and back up failed.
    in this way I am wasting space on tape. data size is 700 GB, tape size is around 3 TB.
    I can see there is option in 'optimize usage' where I can mention under advanced. write period and expiry tolerance.
    i believe I need to modify these settings.  please suggest if i want daily incremental backup and full backup on Saturday with 1 week retention and reuse the same tape or second tape instead of waiting for more tapes

    Hi,
    It is currently working as designed for tape library.
    See the following TechNet page:
    How DPM Uses Tape Libraries
    http://technet.microsoft.com/en-us/library/hh757885.aspx
    Short-term tape "full and incremental" option
    The full backup will require a free tape for each scheduled job, and the incremental backup for all data sources will be appended to a single separate tape.
    As tapes fill up, new free tapes will be allocated.
    When the next full backup occurs, it will require another free tape, and subsequent incremental backups will be appended to another free tape.
    So basically, you will need three sets of tapes for a 1 week retention range.
    Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. Regards, Mike J. [MSFT]
    This posting is provided "AS IS" with no warranties, and confers no rights.

  • Require backup script which deletes the daily backups after weekly backup

    Hi,
    I am new to Oracle administration. I require a backup script which will delete the daily backups (incremental) after weekly backup is taken (full database backup).
    Currently I use Oracle 10g for one of my production server.
    My backup strategy is given below.
    I would like to take full database backup weekly(online). To be precise, on Saturday.
    I need to have daily incremental backup and they should get deleted on Saturday after the weekly full database backup is taken.
    Also I would like to keep 4 weeks full backups. After that one by one we need to delete the backup.
    For example, if I have 4 weeks fullbackup of February, after taking full backup for first week of March, the backup of first week of February should get deleted.
    Kindly help with your suggestions.
    Thanks & Regards,
    Rafnas

    Hi,
    Thank you for pointing to the blog. It was very much useful.
    I was testing the backup strategy using your script. It worked fine for first set of daily backups.
    After weekly backup is taken, the daily backup script fails for taking the backup from next day onwards.
    It gives the following error stack.
    Starting backup at 05-MAR-09
    using channel ORA_DISK_1
    RMAN-00571: ===========================================================
    RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
    RMAN-00571: ===========================================================
    RMAN-03002: failure of backup command at 03/05/2009 01:47:55
    ORA-01455: converting column overflows integer datatype
    Could you please let me know why integer datatype comes into picture while taking backup?
    Please advice.
    Thanks & Regards,
    Rafnas
    Edited by: user10698483 on Mar 5, 2009 3:38 AM

  • Full Backups Daily on MBP

    Time Machine does full backups of my MBP almost every day.  I carry it back and forth between my office and my home so I don't know if it does a full bakcup every time the network changes or if this is the result of a bug.  A daily full backup is rather excessive and Time Machine doesn't have any user configurable settings regarding type and frequency of backup.  Does anyone know what the solution is for this?

    By default Time Machine is backed up every hour - so if you are 'offline' for a bit, it will do when you reconnect. Once you do a full back up through, it should only be backing up the changed files. 
    To change the frequency of the back up, you can enter the following using Terminal - where you just change the 3600 (the default for one hour) to whatever value you want in seconds.
    sudo defaults write /System/Library/LaunchDaemons/com.apple.backupd-auto StartInterval -int 1800

  • Industry Standard TIME for database daily backup?

    We have many databases in our company for which our Database backups are forced to be run by System Administrators at 3PM since their tape backups are starting from 4PM.
    As a DBA I am suggesting to run all the tape backups late night so that I can schedule my Database bacukps at atleast 10PM daily.
    What is the industry standard for running daily database backups time? Can somebody please provide some links for such standards from a authorising body like Gartner, etc?
    Thanks in advance.

    There is no standard time as this depends on many factors (business working hours, scheduled concurrent programs, activities on the system, whether you have global offices with different timings, ..etc). For most companies, I believe the best time to take a backup is when there are less activity on the system (which is usually late at night).
    The question is, what type of backup you do? If it is an offline backup, and you are not affected by any of the above factors, then you should be OK to run it whenever it is suitable for you. If you use an online backup, you could simply keep the application/database running and take a backup.
    Thanks,
    Hussein

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