NeSuKuN Posted June 29, 2006 Share Posted June 29, 2006 I've got a big problem, I have two 250GB SATA HDD's and a RAID controller and I want to make 'em RAID 0. but I have +- 300 GB of data that I can't loose (well, I think that I can reduce it to less than 250GB). the problem is... AFAIK when creating a RAID with disks, all the data inside 'em will be destroyed. So I need a way to create the RAID without loosing the data (I have nowhere to put it and DVD's arent as realiable as I need) I was thinking a crazy strategy to follow, but haven't thought it much. create one 130~ partition at the end of each disk, move the data to those. create a 240gb RAID 0 (120gb on each disk) and partition it copy the data to that raid back up the RAID 0's MBR delete the raid without formatting create a new 500gb raid 0 rebuild the previous RAID 0's MBR Enlarge the partition to fill all the raid volume space with partition magic Will this work? I mean, if the data isn't rewrited rebuilding the raid, it should be no problem, I have deleted partitions on normal disks and rebuilded 'em just knowing their size and attributes (hexediting the MBR) without loosing any single file Link to comment https://www.insanelymac.com/forum/topic/20736-raid-questions/ Share on other sites More sharing options...
NeSuKuN Posted June 30, 2006 Author Share Posted June 30, 2006 ReBuMP! Link to comment https://www.insanelymac.com/forum/topic/20736-raid-questions/#findComment-137754 Share on other sites More sharing options...
james2mart Posted July 1, 2006 Share Posted July 1, 2006 instead of deleting the RAID without formatting, can't you just create that 240gb raid, move the data to it, delete the 130gb partitions, and tell partition magic to increase the partition sizes to the full capacity of both disks? of course you wouldn't have this problem if you could burn that 250gb of HD porn onto blu-ray or HDDVD dvds... just kidding..... ;-) Link to comment https://www.insanelymac.com/forum/topic/20736-raid-questions/#findComment-137876 Share on other sites More sharing options...
jacob019 Posted July 1, 2006 Share Posted July 1, 2006 RAID 0 is dangerous because if either drive fails you're screwed. What you want to do is no problem in linux using LVM instead of RAID 0 it has the exact same effect. Just fit all the data on one drive. Partition the empty drive with a big LVM partition and add it to a fresh volume group and create a physical volume with it. Mount the logical volume and move all the data to it. Partition the newly empty drive the same as the other and add it to the volume group, then grow the logical volume and the filesystem. Viola. May be a bit harder in OS X why do you need one big drive anyway? Link to comment https://www.insanelymac.com/forum/topic/20736-raid-questions/#findComment-137894 Share on other sites More sharing options...
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