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August 22nd, 2019 08:00
Poweredge R610 Raid 5 problem
Greetings: I am a novice managing my own small business network so not a pro. I have a Poweredge R610 set up with two RAIDS, a Raid 1 for the C drive which works fine and a RAID 5 for the D drive. Either one of the drives failed or I have a bad controller card. Initally when trying to retrieve a file from the D drive we could see tyhe file name but couldn't retrieve the file from storage so we elected to reboot the server. That started the problem. It wouldn't restart properly and one of the drives was flashing orange instead of green. I went into the configuration utility and may have crewed things up. I couldn't boot to the OS because of a "cached file not available" error. I was able to clear that and boot to the OS. When I got a replacement drive and went into the configuration utility I see only on VM drive and all now 5 disks are listed. I have not installed the new drive yet. It is fresh out of the box and of the same type as the other drives. I don't want to do anything more without checking with some experts. I have a lot of data on this RAID. One option available is to create a new VM I assume using the three drives as before. Is this what I should do and will the data remain? Any help will be greatly appreciated.
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Daniel My
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6.2K Posts
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August 22nd, 2019 12:00
Hello
For someone to help they would need to know a lot of information. If your storage controller supports logging then you should get a controller/TTY log ASAP. The log stores the last ~10k lines, so every time you restart the system or do anything that adds lines to the log it is overwriting old log entries.
If the data is critical then you should contact a data recovery company.
http://www.dell.com/storagecontrollermanuals/
It sounds like the RAID 5 virtual disk may have been deleted. When you delete a virtual disk it normally just deletes the tags that define the disk. These tags exist on each member disk and the storage controller. Retagging is when you create the virtual disk again using the same disks and parameters. It will re-create the tags and allow the data to be accessed again. Re-tagging is fairly simple if you know what you are doing, it can be overwhelming if you don't.
Thanks
Docwagner324
6 Posts
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October 22nd, 2019 19:00
Thanks for the reply. Fortunately there is no data on these drives. When I re-seat the drives in the bay they work for a short time and then two of them stop which makes the virtual disk disappear as a drive. I can repeat this process and get the same result. Hardware malfunction?