I have a proliant dl380 Win2003 server with an embedded HP smart array 5i controller. It has a RAID 5 array for data which is almost out of space. We've purchased the drives for a new array with double the space. The plan is to back up this data drive, swap out the drives, create a new array from the BIOS, create the dynamic disk from the OS & restore from backup.
A complicating factor is that disk management is not working. I get the error 'unable to connect to logical disk manager service' and a popup that indicates 'unspecified error'. I've researched this and tried various fixes all to no avail. It looks as though I should be able to accomplish this with diskpart, but not having done it before, I have some questions.
Once the RAID 5 array is created, I assume diskpart will see the array as one logical disk. Will I then have to create a dynamic disk or will the creation of the array through the hardware eliminate the need for this and allow me to just create a volume, assign a drive letter and format? Looking at the different diskpart commands, it seems it converts from basic to dynamic, but there doesn't appear to be anything about creating a dynamic disk from the start.
Another question - if things go badly, is it possible to 'keep' the current array and simply pop the old drives back in with the original data accessible or does the controller force you to delete the old array to create the new one? I thought the array would be deleted, but I've seen some postings that seem to indicate you might be able to revert back to the old array. Perhaps this is only with certain controllers or maybe I misunderstood the posts?
Thanks for your comments.