Backup and recovery of oracle clusterware ocr oracle. Ocr is a technology that allows you to convert scanned images of text into plain text. Linuxintelligentocrsolution lios is a free and open source software for converting print in to text using either scanner or a camera, it can also produce text out of scanned images from other sources such as pdf, image, folder containing images or screenshot. Gocr, tesseract ocr, and cuneiform are probably your best bets out of the 3 options considered. Because this automatic backup of ocr is physical copies of oracle cluster registry. How to ocr to searchable pdf in linux one transistor. The ubuntu universe repositories contain the following ocr tools. Once the data is backed up, you can ship this express device back to us and within a week your data will be available in. So i turned to pdfocr, a nice little ruby script that automates the conversion using tesseract amongst other options. Oracle 10g provides automatic backup of ocr along with manually export of ocr files.
Content grabber does not include any ocr functionality, so you must use a 3rd party ocr service. This script is designed to run on any computer by changing only the four variables. A shell script is essentially a file containing a list of commands that are run in sequence. Backup and restore oracle cluster registry in oracle 11gr2. Nov 21, 2016 this tutorial explains how to create a bash script which can backup the files you need. Jul 24, 2015 you can use a proprietary or open source utility, but the simplest approach might be to use a bash script. Ocr automatic backup is done by ocr master every 4 hours. If future revisions of my script used a different date format, then i would only have to change the date format on. The image ocr script is used to integrate with a 3rd party service.
You can perform immediatemanual express backup using the below command. Yes it would be shorter in your script, but only because your script only uses a single target backup file. The oracle cluster registry in rac ocr, cluster ready services crs, management of the oracle cluster registry backup files in real application clusters, restoring the oracle cluster registry on unixbased systems, restoring the ocr file from the automatically generated ocr backups. If ocr location does not exists like diskgroup then recreate that location with same name or recover diskgroup. Could anyone suggest some good ways of backing up a file from a windows machine to a linux platform using a batch file of powershell command. Restore and recover ocr from backup oracle cluster registry.
First check exact location of automatic ocr backup location using ocrconfig showbackup command. Use simple operating systems copy command to copy this physical ocr copy to backup destination as give below. Ocr technology is vital for gaining access to paperbased information, as well as integrating that information in digital workflows. This would be an interactive way to perform backup, where you need to provide remote backup server hostname ip address and folder location. The process daemon ocssd manages the configuration info in ocr and maintains the changes to cluster in the registry. In a cluster, crs instance automatically creates an ocr backup every four hours. My goal is to monitor a file for modification using a powershell script on startup, and then to back it up to the linux machine when modified. Backup and restore of ocr in grid infrastructure 11g r2 11. How to restore the ocr and voting disk when they are lost. Its weird that we can do manual backups of the ocr file located in the asm disk, but we cannot delete a backup. I took the last stanza of edgar allan poes the raven and put in an image using different.
How to backup clusterware ocr and voting disk ed chen logic. The default ocr master is always the first node thats started in the cluster. In case of the loss of the asm diskgroups storing the ocr and voting disks, restoration will have to be done using the following steps. Overview 11g release 2 on wards voting disk data is automatically backed up in the ocr whenever there is a configuration change. They can only export plain text of the ocred image and do not support embedding text into the pdf in order to make a searchable pdf. A short, simple bash script for automated backups linux. In fact according to oracle documentation restoration of voting disks that were copied using the dd or cp command may prevent your clusterware from starting up. Jul 16, 2018 test the script to make sure everything correct, ex. No need to take voting disk backup separately, ocr backup will contain both ocr and voting data. With optical character recognition ocr, you can scan the contents of a document into a single file of editable text. It is not possible to directly restore a manual or automatic ocr backup if the. Oracle clusterware automatically creates ocr backups. It will identify if the current node is ocr backup node and distribute the ocr backup to all other nodes in the cluster, including week. How to restore asm based ocr after complete loss of the crs diskgroup on linux unix 1.
In this blog i discuss from the part where you have setup your machine and ready to do your linux configuration this is a 3 blog series an. In this blog i discuss from the part where you have setup your machine and ready to do your linux. It must be accessed by all nodes in cluster environment. Linux seq command examples how to install an configure master pdf editor in. This tutorial is a simple way to do what written above. If the backup of ocr and voting disk is available, then we could just create the diskgroup and restore ocrvoting disk from the backup back to the diskgroup.
The voting disk is a file that manages information about node membership and the ocr is a file that manages the real application cluster rac database configuration information. This section lists the following ocrconfig commands. The article will focus on backup and restore of the ocr and will point out some practices for high. The crsd process that creates the backups also creates and retains an ocr backup for each full day and at the end of each week. Over the last weeks i spent some time with researching available ocr optical character recognition tools for linux. Import metadata of ocr from export dump file of backup. Shell script to make ocr and votedisk backups, for oracle rac. If the original file does not exist, then you must create an empty file.
Ocr and voting disk backup and make a ocr and voting disk. Oracle rman backup shell script example the geek diary. If you find yourself using imagemagick a lot for this kind of work, you might be interested in the textcleaner script from freds imagemagick scripts. You execute ocr commands, such as ocrconfig, from a user with administrative. This is correct that its an ocr device because its a only a backup and i dont want to configure this location as an ocr location. Jul 22, 2011 shell script to make ocr and votedisk backups, for oracle rac leave a comment posted by aychin on july 22, 2011 this shell script will help you to sleep well and be sure that you will always have ocr and voting disk files backups. If instance is not mounted or open when running script it will only backup datafiles and not backup archivelogs if they exist. Foolproof image backup script for naive home users solved.
This backup process will be automatic and it is something that every linux user or admin needs. Script for daily export backup with date deveshdba. Doing ocr using command line tools in linux william j turkel. Jun 30, 2016 script for daily export backup with date hi, below script is used to take export backup expdp of database schema. I think ocr backup is performed by the node who is a crsd master node. Please use the menu bar to navigate through around 400 rac linux virtualbox java ee articles. May 20, 2015 this article we bring shell scripts to backup your files directories from you local linux machine to a remote linux server using rsync command. Ocr software is not mainstream so open source alternatives to proprietary heavyweight software such as omnipage, readiris, cvision pdfcompressor, or the linux supported abbyy finereader are fairly thin on the.
Now your server will be fully backup to a remote ftp server and all files, older than n days will be deleted. They can only export plain text of the ocr ed image and do not support embedding text into the pdf in order to make a searchable pdf. An image ocr script can be added to a download image command by selecting the ocr configuration tab and setting the option convert image to text. With such a tool, i should be able to expect a reliable image for use on disaster day. The goal here is to move ocr, voting disk file and asm spfile in a grid infrastructure with rac cluster to a new asm disk group. Restore the ocr on linux or unix in oracle rac smart way. Easy, straightforward use is the primary reason people pick gocr over the competition. Free software solutions for linux that can run ocr on pdf documents and convert them to searchable pdf. That is to say, as long as you have the latest ocr backup, you automatically have voting disk backup too.
Restore the ocr on linux or unix in oracle rac restoring the oracle cluster registry on linux or unix systems if ocr is failed then first check with ocrcheck command before start restoring the ocr disk note. Before running this command, ensure that the original ocr or olr files exist. In this article are going to have a look at the components of the oracle clusterware existing in oracle gi 11. I wanted to see how recognition rates differ between the tools and created some very simple images. This appendix describes the syntax of the oracle cluster registry ocr configuration utility, ocrconfig. The latter is a fast ocr takes a lot of cpu, and it is configured to use all your cores, opensource and frequently updated piece of ocr software. Run the ocrconfig manualbackup command on a node where. The script is then configured for an hourly, daily or weekly launch using crontab on the remote server, and another short script is configured to grab those backup files from the remote server to your local machine using rsync for incremental file downloads. Restoring the oracle cluster registry on linux or unix. To restore the ocr from an automatically created ocr backup file.
The script will create a detailed log of the backup. If master change lets because you stop that node then ocr backup location node would also change automatically. You cannot customize the backup frequencies or the number of files that oracle database retains. The default location for generating ocr backups on linux or unix systems is. As you can see, having a backup of the ocr and voting disk can dramatically simplify the recovery of your system. To upgrade to oracle clusterware 12 c from a previous oracle clusterware release on which you were using raw or block devices, you must migrate ocr and voting files to oracle asm or a shared file system before you upgrade.
The backup script will accomplish the following goals. Generating data backup and restore scripts unix or linux. Use the ocrconfig restore command to restore ocr from an automatically created ocr backup file syntax. The following example below is our backup script, called backup. But in our case no backup, well have to deconfig the cluster and run root. The script will send an abbreviated email summary of the backup to the administrator. How to scan and ocr like a pro with open source tools. It takes the pdf document, extracts the scanned images, processes each with tesseract, and pieces it all back together again as a pdf. Dec 31, 2015 free software solutions for linux that can run ocr on pdf documents and convert them to searchable pdf. We will create a shell script using variables, the tar command and the date command to create a dated backup file of a directory, with its subdirectories. It is installed and configured when oracle clusterware is installed. Our shell script is a little bit smart, the script will be executed only in the master node of the cluster.
Agile, sap basis, sharepoint, linux and business apps admin. Automating backups with tar it is always interesting to automate the tasks of a backup. It is not possible to directly restore a manual or automatic ocr backup if the ocr is located in an asm disk group. Create a backup archive that is as easy to restore a single file as it is to restore an entire file system. This article, which focuses on scanning books, describes the steps you need to take to prepare pages for optimal ocr results, and compares various free ocr tools to determine which is the best at extracting the text. This page is powered by a knowledgeable community that helps you make an informed decision. The olr is a local registry for node specific resources. However, for asm to be available, the crs stack must have been successfully started. How to restore asm based ocr after complete loss of the.
This script also will create copy only for the most recent ocr backup. Using automounter you can even specify remote filesystems. The voting disk and the oracle cluster registry ocr. May 15, 2008 oracle 10g provides automatic backup of ocr along with manually export of ocr files. It also explains how to troubleshoot ocr using the ocrdump and ocrcheck utilities.
Automating backups with tar linux documentation project. In oracle clusterware 11g release 2 an additional component related to the ocr called the oracle local registry olr is installed on each node in the cluster. Shell script to create copy of ocr backup to a filesystem. You can also use these utilities on oracle local registry olr. Adding ocr and voting disk mirroring in oracle 10g the oracle clusterware crs includes two important components. Make sure the grid infrastructure is shutdown on all nodes.
An image ocr script can be added to a download image command by selecting the ocr configuration tab. A second and much more efficient method used to recreate the ocr and consequently the voting disk as well is to rerun the root. Swmbo has a pile of pdf documents to process and extract information from, and over 50 of them are scanned which means no copypaste. Restore ocr from a weekly backup helmuts rac jee blog. In doing so the instance will be open to mount mode in order to do the backup and be left in that state unless the restore to original mode code is uncommented.
Hi, below script is used to take export backup expdp of database schema. Loss of ocr, voting disks with no backups of ocr, voting. Automation offers enormous opportunities for using your linux server to achieve the goals you set. How to restore asm based ocr after complete loss of the crs. There is no need to bring down cluster to take this physical backup of ocr.
I have implemented many business critical systems for fortune 500, companies. Apr 28, 2017 linux unix tar full and incremental tape backup shell script in categories backup last updated june 10, 2009 a unix linux shell script for creating full and incremental backups with tar and mt commands. Use the ocrconfig backuploc command to specify an ocr backup directory. Oracle clusterware 12 c does not support the use of raw or block devices. This enables you to save space, edit the text and searchindex it. Deconfiguring the cluster can be done through rootcrs. In other words, for 12c rac database, you should only backup ocr instead of backing up voting disk.
How to move ocr, vote disk file, asm spile to new diskgroup. The oracle cluster registry in rac ocr burleson consulting. System administrator desk recently published a custom bash script to back up your systems, which you can use to automate backups. Apr 24, 2017 in oracle clusterware 11g release 2 an additional component related to the ocr called the oracle local registry olr is installed on each node in the cluster. If i were writing the script for my own use, thats what i would want. Use ibackups scripts bundle to backup and keep your linux data safe. On windows, shed probably just use acrobat, but on linux.
The ruby script above from github though still works with 16. Jun 09, 2009 backup and recovery of oracle clusterware ocr june 9, 2009 rac. At any one time, oracle always retains the last three. So, you can keep the cron entry enabled in all nodes, but only one node will execute the shell script the master node.
The filesystems or directories to backup can be specified in the script. Aug 24, 2012 adding ocr and voting disk mirroring in oracle 10g the oracle clusterware crs includes two important components. First, insert your backup medium usb thumb drive or external hard disk. You get to look at the original scanned document and select the. With the loss of these file the cluster will not start. The backup files can save you from ocr, olr corruption during gi patch.
The person asked for whats the best, simplest ocr solution not what are all the ocr apps available for linux. There are multiple ocr optical character recognition engines for linux, but most have a major drawback. The problem is to find a useful program and use easily. It also keeps information of which database instance run on which nodes and which service runs on which database. With an ibackup online account you can protect files during transfer and storage, using 256bit aes encryption with an optional private key. The olr is not shared by other nodes in the cluster. Aug 17, 2017 the logon script should remind users daily until they have run the backup script successfully. Jun 16, 2019 in this post, i will introduce some ways to backup oracle cluster registry ocr data and voting disk in case of losing all configuration. If the ocr backup file is located in an oracle asm disk group, then ensure that the disk group exists and is mounted. In other words, for 12c rac database, you should only backup ocr instead of. Starting from oracle 11g, we can also take manual backups of ocr. Backup and recovery of oracle clusterware ocr june 9, 2009 rac. This approach is possibly overkill as it actually tries to assign a string to each. Shell script to backup files directories using rsync.
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