Date: Thu, 22 Jul 2004 17:09:05 +0400 From: "Artem Koutchine" <matrix@itlegion.ru> To: "Steve Bertrand" <iaccounts@ibctech.ca> Cc: freebsd-questions@freebsd.org Subject: Re: Is it possible to migrate raid 5 array to another controller? Message-ID: <022c01c46fed$16a179b0$0c00a8c0@artem> References: <014f01c46fd3$577710e0$0c00a8c0@artem> <3844.209.167.16.15.1090500751.squirrel@209.167.16.15>
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> First off, most of the people in the FreeBSD lists can get fairly upset > when they see people cross-posting to more than one list at a time. Sorry, i got the point. I just thought it was related to both list. Apperantly i thought wrong. > You'd be better off cloning the RAID array, say to perhaps a single IDE > disk, migrating the disks to the new controller and creating the array on > that controller, and if the machine does not come back up, clone back from > the IDE backup onto the new array. It might not be that easy, because it is a 1TB SATA RAID5 array and it does not fit on any single medium or device. At least some raid5 conrollers have an option of creating a new raid5 array without initialing it. Is this the thing you tried when migrating disk from raid5 to another controller? As i understand metadata about an array is stored not on the disks but in the non-volatile controller memory, so, when migrating disk one has to re-create the array in any case. However if controller bios software has an option to create an array w/o initializing it and raid5 has standard specs which all manufacturers follow then one should be able to migrade arrays from one controller to another w/o any problems. Any comment on this? Regards, Artem
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