 Hello everybody! Watch this video to find out how to recover data from a RAID based on a nonoperable LACI NAS and how to build or change the RAID level and retrieve files from a press-rate system. In today's world, data is of utmost importance – network-attached storage devices often old photos, documents, videos, backups and other precious information. And network-attached storage provides a reliable way to store data thanks to the RAID technology. RAID is a way to combine several physical hard disks into a single logical data storage. RAID gives a good reliability, high performance and the possibility to recover data if one or several disks fail. LACI 5Big allows users to create various levels of disk rates, for example RAID 0, RAID 1, RAID 5 and RAID 6, which offers good protection against data loss. RAID systems have several advantages, including enhanced reliability for tolerance and data recovery options. However, there may be various issues like hardware failures, configuration errors or equipment breakdowns which may result in losing access to your files. If something like that happened, it is important to know how to restore access to your data and recover it. In today's video, we'll explore how to build a RAID on this NAS and how to change its level and what to do if the disk array crashed on the network drive is inaccessible. For starters, let's explore how to build a RAID system on this specific NAS device. It will give you some insight into the RAID technology and help to recover the data problem. I have this LACI device, model 5Big Network 2, during the initial setup. The RAID automatically creates a RAID and its properties depend on the number of hard disks you have connected. To change the RAID level, open the LACI web interface. Type the IP address of your device into your browser. To identify the IP address, you can use a special utility – LACI network assistant. In the Storage Management window that opens, go to RAID Management. In this section, you will see the information on the current RAID status. To change the properties and rebuild the array, click on the Manage button, and select the Build mode, Automatic or Manual, then click Next. Select the hard disks for the future array, and click Next again. After that, choose the RAID level and click Next. At this stage, check the array properties and click Finish to confirm them. It starts the process of initialization, and depending on the total site of selected disk space, it can take from 10 hours and longer. Have a look at this table for more details. If you lose access to the network drive when the network attached storage fails or other hardware breaks down, you'll have to rebuild the crashed RAID and retrieve important data. And this is when you need a specialized data recovery tool – Hadment Rate Recovery. It supports all popular file systems and RAID times, including the technology required to use LSD array. The utility will automatically rebuild the crashed array with the available hard disks, and you'll be able to retrieve your files. To start the recovery process, take the drives out of the storage device and connect them directly to the motherboard over Windows computer. Bear in mind that before starting data recovery operations, you should prepare sound-free disk space with the capacity equal to the amount of data you are planning to recover from your disk array. If your motherboard has less setup ports or power connectors than necessary, use additional adapters and expansion cards. Also, depending on the RAID's level, you can exclude one or two hard disks from the array. For example, RAID 5 retains the probability if one of its hard disks is missing. When the hard disks are connected and the program starts, it will automatically scan the disks and rebuild the damaged RAID. Below, you will see the array properties. To search for lost files, right-click on the identified volume, and choose Open. After that, choose the scan type, file scan, or full analysis. If the NAS is down, but the program manages to rebuild the RAID correctly, a file scan is enough. When the scan is over, open the folder where the lost files were stored. This program retains the entire structure and file name so it will be easy to find the required items, and you can use the preview window to see their contents. The previously removed files are marked with a red cross. Select all the items you want to recover and click the Recovery button. Specify where to save the data. Choose the disk and folder. Click Recovery and Finish. You will find the recovered files in the folder you have chosen. If the program can't find the missing files after the file scan, then go for full analysis. To do it, return to the main menu, right-click on the disk, and choose Analyze again. Full analysis. Choose the file system type. You can uncheck the option for Content Aware Analysis as it will make the process go faster. Later on, if the program fails to find the required files, run the scan again, but this time with the Content Aware option enabled. As you can see, the utility managed to cope with the task to rebuild the crash to RAID, find the remaining files, and even the items which have been removed before. In case of ISCSI disk and a properly working NAS storage, you will be able to scan the disk right from the client's system. Start the program and scan the network drive. Find the files which were accidentally deleted and recover them. This method can help you if some files were removed from the storage by accident. In this case, you don't need to take the disks out of the storage case. Set up an ISCSI connection and try scanning the drive from where the files were removed. We have explored how to configure such connection a bit earlier in this video. In some situations, the program may fail to rebuild the RAID automatically. This can happen when the service information on the disk is erased, so the program cannot identify parameters of the crashed RAID. In such cases, the RAID constructor with the manual build feature will help you. This tool will save the day when the disk beginning is erased, together with the information about the array parameters. This is what typically happens when disks are connected to another controller and the previous configuration is erased when the RAID is rebuilt, or when the disks are initialized. For initialization, data will be erased completely. If you know the array parameters, start the constructor, choose manual mode, next. Specify the array time, block order and size. Add the disks it used to include and replace the missing disks with empty drives by clicking the plus button. You may have to specify the offset, which tells you where the beginning of the disk is located. One more thing to choose is the disk order. When you give all the parameters you know, you will see your RAID. Any full information is correct, you will see its folders here, filling all properties and click add. After that, the RAID system will appear in the drive manager. Now, start the scan, search for files and recover the ones you need. At the end of this tutorial, I'd like to remind you about the importance of backing up your files from RAID regularly. This simple step will help you avoid data loss and make the recovery process easier if any failures occur. Also, don't forget that data recovery from RAID requires special attention, since even one wrong action can result in a total data loss from all involved artists. If you're not too confident, it's always better to ask professionals for help. Summing up, now you know how to restore access to your data in case your network attached storage fails. If you need to recover your last CE5 big network to nest after a failure or disk replacement, leave a comment and we'll do our best to help you. And that is all for now. Hopefully this video was useful. Remember to click the like button and subscribe to our channel. Leave comments under this video to ask questions. Thank you for watching. Good luck.