Please help to analyze what to do and if there still is a hope for getting the server up and running or if you need some more details. Welcome to serverfault! Based on the information you supplied in your "answer" post you should edit your question to supply extra information, not post an answer :.
Oh dear. You can probably kiss the data on this array goodbye - at best you're already going to have some filesystem corruption from the data that couldn't be flushed out from cache to disk. In any event, your raid set is "not functional" your virtual disks are offline so based on Dell's instructions that you have found, you should "import" the foreign array and hope it adds it back in to the existing raid5 array without too much damage resulting from the unclean state - but basically you should already be preparing to start from scratch, because there's every chance the controller will just create an additional set of offline virtual disks with all but one drive missing based on the "imported" "foreign" disk.
You make no mention of if you were aware that one of the drives was already failed, so as a follow-up action, ensure you have monitoring configured for all your RAID arrays to try and minimise risk going forward.
If only one drive is foreign, you almost certainly do not want to import it; This could be a sure-fire method to end up with corrupted data within the RAID set, and you'd have to do some file-system repairs at minimum, if not reinstall your OS and restore data from backup. This often has a good chance of bringing the RAID back online. If importing does not resolve the issue, a last-resort option would be a "retag", recreating the RAID set from scratch without initializing. I would highly recommend contacting support for additional help if your system is still under warranty not sure how helpful out-of-warranty support would be with this kind of issue.
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Learn more. Reinserted a RAID disk. Defined as foreign. Is import or clear the correct choice? Ask Question. Asked 8 years, 2 months ago. Active 2 years, 9 months ago. Viewed 68k times. The drive-status indicator was changing between a green and amber light, and the monitor gave the following message: There are offline or missing virtual drives with preserved cache. To access data on the disk, you must add the disk to your computer's system configuration.
After that, any existing volumes on the foreign disk become visible and accessible. Adding the disk to your 'system configuration' that supports dynamic disk won't destroy data in any way.
It should be completely harmless to do, and your data should remain entirely intact. The only way for you to do it is to erase all of the data from the disk and convert it to a basic disk. But then you'll lose data. The specific steps are as follows. If you don't want to destroy or lose data? Move to the next part and see how to convert the dynamic foreign disk to basic without losing data. It doesn't matter what version your computer is; you can directly import a foreign disk by converting it to a basic disk without data destroy.
Step 2. Select the disk that you want to convert, tight-click it and choose the conversion option:. Step 3. Click "OK" on the pop-up notice window and you will add this conversion to the pending operations. Step 4. Click the "Execute 1 Operation" button at the top-left corner and click "Apply" to begin to convert the basic disk to dynamic or dynamic to basic.
When you move a dynamic disk from one computer to another, this dynamic disk is flagged in Disk Management as a foreign disk. In order to access this foreign disk, you must import it first.
Unfortunately, when the system comes back online, the disks on the external enclosure all appear in Disk Manager as Foreign disks. I can successfully restore them to operation by issuing an "Import Foreign Disks" command and waiting forever for them to resync.
I'd like to host a couple of VMs on the volumes on the enclosure but it's quite problematic to do so when the enclosure doesn't come online with the rest of the system after reboot. What can I do to encourage the system to recognize this disks when the system powers back up so that I do not have to import the disks every time we've experienced a significant power issue?
Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Asked 10 years, 6 months ago. Active 10 years, 6 months ago. Viewed times. The system is occasionally restarted due to the environment.
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