https://community.hpe.com/t5/hpe-proliant-servers-ml-dl-sl/raid-migration-from-1-0-to-6/m-p/6859647#M153559 <P>For anyone finding this thread in the future, I found out the answer on my own.</P><P>HP SSA allowed me to convert my second logical disk from RAID10 to RAID6 without a hitch.&nbsp; I expected warnings or at least a summary of available/used space, but it was really just a single screen consisting of which RAID to migrate to and clicking OK and it started.&nbsp; It took just under 1 full week for the transformation to complete.&nbsp; Once I did that, I was able to expand the logical disk to acquire the newly freed up space.&nbsp; I then went into Windows (2008 R2), opened Disk Management and extended the volume.&nbsp; Here is the only part in which I ran into an issue.&nbsp; I tried to extend the volume using all of the freed space, but I got an error stating that I could not do so because of the disk's cluster size.&nbsp; It turns out that I can only extend the volume up to 32TB because of the cluster size used when the drive was originally formatted.&nbsp; This means I cannot assimilate about 4 of the TB into this volume unless I reformat it and choose a larger cluster size.&nbsp; In my case, I was happy to acquire any of the space, so this whole conversion worked out for me anyway.</P><P>Hope this helps someone in the future.</P> Mon, 16 May 2016 13:49:02 GMT Steve Rappaport 2016-05-16T13:49:02Z https://community.hpe.com/t5/hpe-proliant-servers-ml-dl-sl/raid-migration-from-1-0-to-6/m-p/6857219#M153495 <P>I have a DL380p Gen8, which uses a P420i controller.<BR />Currently, all 12 drive bays are filled with 4TB drives.<BR />I have a single array using all drives and it has 2 logical volumes (RAID 1+0).&nbsp; The first is 300GB for OS.&nbsp; The second is the remaining space (~23TB).<BR />My question is, can I do an online RAID migration of one or both logical volumes to RAID 6?<BR />Thanks.</P> Fri, 06 May 2016 15:44:10 GMT https://community.hpe.com/t5/hpe-proliant-servers-ml-dl-sl/raid-migration-from-1-0-to-6/m-p/6857219#M153495 Steve Rappaport 2016-05-06T15:44:10Z https://community.hpe.com/t5/hpe-proliant-servers-ml-dl-sl/raid-migration-from-1-0-to-6/m-p/6859647#M153559 <P>For anyone finding this thread in the future, I found out the answer on my own.</P><P>HP SSA allowed me to convert my second logical disk from RAID10 to RAID6 without a hitch.&nbsp; I expected warnings or at least a summary of available/used space, but it was really just a single screen consisting of which RAID to migrate to and clicking OK and it started.&nbsp; It took just under 1 full week for the transformation to complete.&nbsp; Once I did that, I was able to expand the logical disk to acquire the newly freed up space.&nbsp; I then went into Windows (2008 R2), opened Disk Management and extended the volume.&nbsp; Here is the only part in which I ran into an issue.&nbsp; I tried to extend the volume using all of the freed space, but I got an error stating that I could not do so because of the disk's cluster size.&nbsp; It turns out that I can only extend the volume up to 32TB because of the cluster size used when the drive was originally formatted.&nbsp; This means I cannot assimilate about 4 of the TB into this volume unless I reformat it and choose a larger cluster size.&nbsp; In my case, I was happy to acquire any of the space, so this whole conversion worked out for me anyway.</P><P>Hope this helps someone in the future.</P> Mon, 16 May 2016 13:49:02 GMT https://community.hpe.com/t5/hpe-proliant-servers-ml-dl-sl/raid-migration-from-1-0-to-6/m-p/6859647#M153559 Steve Rappaport 2016-05-16T13:49:02Z