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I am using a lsi megaraid controller with firmware version 2.130.353-1819 (aug 09 2012). There I had a raid 5 with 4x4tb disks. What I wanted to do is to migrate from raid 5 to raid 10. The megaraid storage manager gave me only the opportunity to migrate to raid 0 live without dataloss. I did that. took me about 30h. Is it now possible to convert this VD to raid 10? From what I read, I must configure two raid 1 VD and add a tripe to make it raid 10. but I now have one raid 0 with 4 hdds.

Removing disks in raid 0 means dataloss, so what can I do? I dont't have enough space anywhere to backup the 7TB of data (drive group ith 16tb -> 14.5 net space, 8tb free).

megaraid storage manager

trashbox2k
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    `now have one raid 0 with 4 hdds.` I suspect you are out of luck at this point. You are probably going to need to buy a large HD and make a backup, and do it fast because if any of your drives fail you lose everything. – Zoredache Feb 09 '17 at 17:40

1 Answers1

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According to the good old "MegaRAID SAS Software User's Guide", migrations are allowed for the following RAID levels:

  • RAID 0 to RAID 1
  • RAID 0 to RAID 5
  • RAID 1 to RAID 5
  • RAID 1 to RAID 6
  • RAID 5 to RAID 6

It seems that your only option is to find a spare space somewhere, migrate your data, and reconfigure the array from scratch.

Strepsils
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