https://community.hpe.com/t5/disk-enclosures/from-raid0-to-raid5/m-p/2927614#M7835 Hi,<BR />I accidentally changed my configuration on a LH3000 netserver to raid 0 after adding 2 18GB disks. Originally I had 2 18GB disks in raid1, but now there are 4 18GB disks in raid0. WinNT still only uses 18GB. I now want to go to raid 5 with 4 18GB disks without losing data. Is this possible without restoring my data from backup or adding another disk? Fri, 14 Mar 2003 15:23:28 GMT J.D. Meisner 2003-03-14T15:23:28Z https://community.hpe.com/t5/disk-enclosures/from-raid0-to-raid5/m-p/2927614#M7835 Hi,<BR />I accidentally changed my configuration on a LH3000 netserver to raid 0 after adding 2 18GB disks. Originally I had 2 18GB disks in raid1, but now there are 4 18GB disks in raid0. WinNT still only uses 18GB. I now want to go to raid 5 with 4 18GB disks without losing data. Is this possible without restoring my data from backup or adding another disk? Fri, 14 Mar 2003 15:23:28 GMT https://community.hpe.com/t5/disk-enclosures/from-raid0-to-raid5/m-p/2927614#M7835 J.D. Meisner 2003-03-14T15:23:28Z https://community.hpe.com/t5/disk-enclosures/from-raid0-to-raid5/m-p/2927615#M7836 Hate to be the bearer of bad news, but to create the Raid 5 the drives will need to be reformatted and blank. I assume you are using a Raid controller to create the array, and you are going to put the NT OS on a part of the array? First, be sure you have a good backup, because you will need to reinstall the NT OS after you rebuild the array, then you can restore from tape to replace your existing configuration. However, I would make sure your have removed any broken mirror configuration before you back up, or the reinstall/restore will still be looking for a mirror. Hope this helps, David Mon, 17 Mar 2003 18:25:07 GMT https://community.hpe.com/t5/disk-enclosures/from-raid0-to-raid5/m-p/2927615#M7836 David Holbrook 2003-03-17T18:25:07Z