Hi again, I'm struggling to get a problem with setup-storage solved. One of our machines has 8 hard drives, 4 of them are connected to a 3ware controller and set to export two logical devices. Additionally, there are 4 identical hard drives attached, i.e. I expect sda..sdf which I get.
The problem is, how do i get the setup-storage configuration file set-up correctly and generic enough to work also a second time in a couple of month, if one of the disks has been replaced? The problem is: * I cannot use sda...sdf as these may change upon reboot - checked and this happens * in by-id I have scsi-SATA_Hitachi_HUA7210_GTE200P8G3JYGE for the 4 drives (well except the final characters as these are based on its serial number), while the 3ware controller is scsi-3600050e0f0998500d158000028c10000 and scsi-3600050e0f0998500d1580001e8960000 * by-uuid is not of much help * by-path is interesting, but is this lrwxrwxrwx 1 root root 9 Jan 9 13:17 pci-0000:00:1f.2-scsi-0:0:0:0 -> ../../sda lrwxrwxrwx 1 root root 9 Jan 9 13:17 pci-0000:00:1f.2-scsi-1:0:0:0 -> ../../sdd lrwxrwxrwx 1 root root 9 Jan 9 13:17 pci-0000:00:1f.2-scsi-2:0:0:0 -> ../../sde lrwxrwxrwx 1 root root 9 Jan 9 13:17 pci-0000:00:1f.2-scsi-3:0:0:0 -> ../../sdf lrwxrwxrwx 1 root root 9 Jan 9 13:17 pci-0000:03:00.0-scsi-0:0:0:0 -> ../../sdb lrwxrwxrwx 1 root root 9 Jan 9 13:17 pci-0000:03:00.0-scsi-0:0:0:1 -> ../../sdc lrwxrwxrwx 1 root root 9 Jan 9 13:17 pci-0000:05:00.0-scsi-0:0:1:0 -> ../../sr0 really stable across reboots? and then how does one differentiate between pci-0000:03:00.0-scsi-0:0:0:0 and pci-0000:00:1f.2-scsi-0:0:0:0 (3ware first device and first stand-alone disk)? Anyone knows how to tackle this? In the end I want to have the system on 3ware device one, then once FS on 3ware device 2 and finally a software raid across the 4 disks. Cheers Carsten
