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I have a Linux system running on an older Sun V20z. The drives are mirrored in a software RAID1. The motherboard has interfaces for only IDE and SCSI. The system is old and is no longer able to handle the load we're putting on it. I also have a much newer Sun X4100. This system is presently unused and has a pair of SAS drives in it. The new server only has SAS and SATA connections on the motherboard, though. I'm trying to think of the best way to clone the V20z over the X4100. I don't mind breaking the mirror knowing I can re-establish it later. I prefer not to do a fresh OS install followed by a tape restore. I would much rather break the mirror and clone one of the SCSI drives the SAS drive. I do have a USB to SATA adaptor for migrating external drives. Anyone know if this will work with a SAS drive? Any pointers on the best way to migrate this? I'm thinking even if the cloning is successful, I'm going to have to much with GRUB to get it to boot from the SAS drive? Any help would be much appreciated.
I think I'd run a live cd of the version you have to see that the new system is supported default. Both scsi and sas ought to be sd type instead of the older hd. sd is scsi and sas ought to run scsi too. Raid arrays should be hardware and built before hand. Then try the old dd or cat or rsync or clonezilla to the new system and try to boot it.
I would do a clean install if this is a production machine.