estimate the time to backup by RMAN

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• Estimate the size of backups rman & time

  Hi DBAs,

  ENV: 11 GR 2, Windows Server 2008, 64-bit, = 12 GB RAM,

  DB size = 370 GB., CMS = 5 GB, EAMA = enabled.

  We need to move this database to the 2012 Windows Server that runs on Hyper-V.  You guys you will suggest what are the best methods to move with limited downtime?

  If we opt for RMAN, is it possible to measure to estimate the size of the backup? (at least, approximate size) and how long it takes to finish?

  Please, share your ideas!

  Thank you

  Hari

  IamHariKrishna wrote:

  Thank you sb92075. Like size, is it possible to estimate the time as well?

  Some, many, most of the professionals actually test before doing it for real & would be able to answer this question by themselves with appeals to foreigners to do their work for them, according to.

• Time Machine - there was an error preparing the Time Machine backup drive (could not mount the drive)

  I have a new HD but cannot set up encryption with system preferences. After ten minutes, I get the following error message:

  "There was an error preparing the Time Machine backup disk (disc name) - could not mount drive"

  Apparently, I need to set up the HD in this way:

  • If you are using an external drive connected to your Mac, use disk utility to make sure that your backup disk is formatted in HFS + extended (journaled) and is the partition type GUID Partition Table (GPT)

  It is not an option for the HFS + and so I used; OS x EXTENDED (journaled). GUID is ok.

  Can someone let me know what I need to do.

  Thank you

  Formatting: GUID Partition Table, OS X Extended (journaled).    (it is HFS +)

  For TimeMachine at best to a partition only.

  Do it again if necessary, then disconnect, reconnect, Start Time Machine preferences and "select disk".

• What exactly does the Time Machine backup?

  What exactly does the Time Machine backup?

  We have a Mac Pro towers (NOT for sale) and Mac mini with several hard drives installed internally.   Time Machine backup all internal disks or just the boot disk?   This can be configured?

  Time Machine backs up your default boot partition. However, if you have more than one drive or partition on your Mac (and it is formatted in "Mac OS extended (journaled)"), you can set the Time Machine to save these drives too. You can do this by removing these drives from the list of excluded items in System-> Time Machine-> Options... Preferences, so that the next backup will include all internal hard drives or partitions that you want to back up too.

• How to reduce the time to backup my ReadyNAS 204 Server?

  I use my ReadyNAS 204 Server backup storage. It takes about 10 hours to backup my ReadyNAS 204 server. There are about 400 GB of data on my server. Is it possible to shorten the time of backup?

  Make sure they are both connected to the same switch or the modem. If they are not, doing so is expected to accelerate dramatically.

• Failure of the Time machine backup could not save "My Passport"

  When I try to do a backup on my Passport using Time Machine, he used to work over the years, and now it is the message I get:

  Failure of the Time machine backup could not save "My Passport"

  
  

  Does anyone has an idea to help me with this problem?

  
  

  (Sorry for my English but I speak French in Switzerland...)
  

  Have you tried to run utilities disk to check/repair the external hard drive? Here is something you can try.  http://pondini.org/TM/A4.html

• Door key lost in the time machine backup

  Dear community,

  Because I had trouble with the speed of my MacBook Pro (and nothing else developed), I had to set up entirely new.

  Before installing El Capitan, my MacBook Pro (starting 2011) ran on Yosemite 10.10.5. I made two backups with time machine, generated a bootable El Capitan installation USB key, in format Macintosh HD, installed at El Capitan and ran all the updates. The system works well, everything works perfectly and my Mac is fast again. Now, I manually copy things that I need in my system of charges.

  Here, the problem is: I can't find the old keychain file in the time machine backup!

  Keychain works with the keys stored in iCloud. However, the other buttons are gone.

  As I discovered, ~/Library/Keychains is hidden. I did it visible on my system running. However, this does not work in the backup file. It remains hidden or - worse - have not been stored in the backup. I don't know that I have excluded from time machine backup only two totally different folders (dropbox and movies).

  You have any ideas how I can find my keychain (login.keychain if my search was right) in the time machine backup?

  Thanks a lot for your help!

  Time Machine, please press the shift-command-C key combination. The windshield will show the mounted volumes. All snapshots should now be accessible. Select the one you want and search for files to restore.

  If you need to restore from a backup of the hidden user library folder, first select a snapshot, and then press shift-command-G. A go to the folder dialog box opens. In this document, you enter the path to the folder. The dialog box will help you by automatically filling parts of the path when you start typing.

  The path starts with the slash character ("/"). Enter that. The rest of the parts is separated by slashes.

  The next part is the date and time of the current snapshot. Enter a '2', and the rest of the date should be filled in automatically. Press the right arrow key to access the end of the path. Enter a slash to start the next game.

  Next is the volume name (usually "Macintosh HD" unless you assigned a different name.) Start typing, then jump to the end and enter a slash.

  The next part is 'Users', followed by a slash.

  Then is your short user name. It is also the name of your home folder, which is represented by an icon of the House in the sidebar of a Finder window.

  Finally, enter "Library", and then press return. You should now be in the library folder. From there, you can move like in the Finder. You can also select another snapshot of the same folder.

• I have a new time capsule airport. How to limit the search for who can use the time capsule backup process?

  I have a new time capsule airport. How to limit the search for who can use the time capsule backup process?

  Set a password to disk... disk tab in the utility... and just give to those you want to use the TC...

• estimate the time installation and configuration of addresses IP of Cisco (Cisco IPS NM at 3800, 2811, 2821 and no. 2851)

  / * Style definitions * / table. MsoNormalTable {mso-style-name : « Tabla normal » ; mso-tstyle-rowband-taille : 0 ; mso-tstyle-colband-taille : 0 ; mso-style-noshow:yes ; mso-style-priorité : 99 ; mso-style-qformat:yes ; mso-style-parent : » « ;" mso-rembourrage-alt : 0 à 5.4pt 0 à 5.4pt ; mso-para-margin : 0 ; mso-para-marge-bottom : .0001pt ; mso-pagination : widow-orphelin ; police-taille : 11.0pt ; famille de police : « Calibri », « sans-serif » ; mso-ascii-font-family : Calibri ; mso-ascii-theme-font : minor-latin ; mso-fareast-font-family : « Times New Roman » ; mso-fareast-theme-font : minor-fareast ; mso-hansi-font-family : Calibri ; mso-hansi-theme-font : minor-latin ; mso-bidi-font-family : « Times New Roman » ; mso-bidi-theme-font : minor-bidi ;}

  / * Style definitions * / table. MsoNormalTable {mso-style-name : « Tabla normal » ; mso-tstyle-rowband-taille : 0 ; mso-tstyle-colband-taille : 0 ; mso-style-noshow:yes ; mso-style-priorité : 99 ; mso-style-qformat:yes ; mso-style-parent : » « ;" mso-rembourrage-alt : 0 à 5.4pt 0 à 5.4pt ; mso-para-margin : 0 ; mso-para-marge-bottom : .0001pt ; mso-pagination : widow-orphelin ; police-taille : 11.0pt ; famille de police : « Calibri », « sans-serif » ; mso-ascii-font-family : Calibri ; mso-ascii-theme-font : minor-latin ; mso-fareast-font-family : « Times New Roman » ; mso-fareast-theme-font : minor-fareast ; mso-hansi-font-family : Calibri ; mso-hansi-theme-font : minor-latin ; mso-bidi-font-family : « Times New Roman » ; mso-bidi-theme-font : minor-bidi ;} Hi I need to estimate the time of installation and configuration of addresses IP of Cisco (Cisco IPS NM at 3800, 2811, 2821 and no. 2851).

  In your experience, would you give this information?

  Thanks for any help you can give on this subject.

  You are welcome. If things are clear please mark it as answered.

• macOS Sierra stuck on the Time Machine backup

  Its been 2 weeks now since I updated to macOS Sierra and my Time Machine backup is always stuck on "preparing backup" and I tried different disc backup on another partition but still no luck.

  Make sure that:

  o drive the TM is excluded from Spotlight indexing non-mandatory;

  o that all software anti-virus is disabled (especially Sophos);

  o journal of iCloud and other cloud services.

  o check this article: macOS Sierra: If Time Machine still at the stage of "preparation"

• Cannot delete the Time Machine backups

  I have a MacBook Air and a 128 GB USB key that holds my library of photos, so I always make backups. My system - and I have recently made account how flawed it was - was to create backups on a 500 GB HARD drive, but to transfer them to a 2 TB HARD drive when it is full. So, I finally discovered that when I transfer backups in small quantities to the 2 TB, it takes more space because instead of aliases of files used to represent more recent backups, care of file just copied over and over again. For this reason, I put my 2 TB as a feature of time machine and imported all the old backups in the folder backups.db, that my Mac 'cleaned' and registered 135 GB. But 135 GB is not enough, I went and delete backups that I don't have anymore. When I looked in the trash to empty, I've seen 2 things: backups I have trashed and others who are pale sort out. I can't open the files, even if I right click and select "open in a new tab. When I try to "immediately remove" these paled-out files, I always get a message that they are "on duty." It is about 300 GB, so I must get rid of him. But it does not stop there, because when I try to "delete immediately" backups I had trashed myself, I get an error message! It is a total of about 600 GB, what I absolutely need to get rid of! If anyone has some tips, it will be greatly appeciated.

  You have probably sprayed your Time Machine backup database. The best thing to do is erase the disc with Airport utility. Then start again with a new backup.

  Good day.

• Remove the Time Machine backups in a certain amount of time

  I have an iMac in the House which is not backup because I have just updated to El Capitan, then now it says that the time Machine doesn't have enough space for a new backup (no doubt because my 200 + GB photo library moved to the new application Photos). Therefore, I need to get rid of some my time Machine backup. My MacBook Pro has almost 1 TB of backup files and I want to delete some, but I don't want to delete ALL my files backup, just in case I need something from him. Is it possible to delete the backups in a certain interval of time quickly, in order to keep all my backups and delete the 'old'? I know that you can delete the backups one by one, but the first backup of my MacBook was in 2014, and I don't want to have to go through 100 backups one by one to manually remove all the...

  Time machine records differences, so delete a backup may stop all your backups made subsequently. Here are some tips on how do it safely for ti:

  http://osxdaily.com/2015/07/27/delete-old-backups-time-machine-Mac/

  Make sure that you create the new full backup after the removal of the 'old'.

• You can use migration assistant to transfer the time machine backup external hard drive?

  Hello. I just bought a new macbook pro with a 256 GB flash drive to replace my previous macbook pro that had a breakdown of all the systems. My problem is that I have a time machine backup that is greater than 256 GB (it's almost 450 GB) and I try to find out if I can use migration assistant to transfer all the content directly on an external hard drive, then move the content I want on my hard drive from the external hard drive? My goal is to let my music and photos on the external hard drive and for all port hardware I need for work.

  I don't have access to another mac with storage well enough that I have the old HD so could potentially be installed in an external enclosure and extracted files directly from there if it's easier.

  What I intend to do in the long term is to buy a big external hard drive network and put all my photos, music etc over there and use the laptop as expected - that is for files from day to day - then it will be just a short-term problem.

  Any advice would be really appreciated.

  Thank you

  Nick

  Migration Assistant is user to transfer data from one computer to the other.  If I read your post correctly, you want to copy your data from Time Machine on another HARD disk.  Thia may be useful:

  http://pondini.org/TM/18.html

  Pondini website covers virtually all aspects of Time Machine.

  Ciao.

• I can't remove the time machine backups, I put it in the trash

  My backup disk is almost full, and I want to take on a value of years of backup files until I can get a new backup drive to perform other files that I want to keep. I tried their erasure of the finder inside the time machine, but nothing happened. I sent them to the trash, and they seem to have disappeared from my external backup drive, but are now stuck in the trash. I left the machine running all night to see that it says it cannot remove these files because they are locked. Can you please tell me what I should do now?

  Thank you

  Hello Suzanne,.

  Go to the trash and use "Put" place files back where they belong. Time Machine is designed to remove automatically the old backup when it is full.

• How can I configure Time Capsule 3 to and Motorola NVG589 to access the Time Capsule backup drive?

  I have ATT Uverse service and am ok with the performance of the WiFi of the NVG589. I want to configure my Time Capsule 3 to extend the network and be able to access the drive for backups Time Machine. I think I am following the steps in Airport utility, but once installation is complete I can find is no longer the time Capsule.

  I want to configure my Time Capsule 3 to extend the network

  The time Capsule cannot "extend" the network Uverse using a wireless connection, if that's maybe what you're trying to do. The time Capsule can only wireless "extend" the signal of another router from Apple.

  The Capsule can be configured to extend the network to Uverse if it is connected permanently... anytime... to the Uverse router using a connection through wired Ethernet cable.

  Please specify on what you're trying to accomplish, so that we can provide the correct steps.