Messages in this thread | | | From | Rolf Fokkens <> | Subject | [PATCH]SCSI scanorder enhancement | Date | Mon, 26 Jul 1999 01:06:43 +0200 |
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The kernel assigns minor SCSI device numbers dynamically. This is done by assigning them only to actually connected devices in order of their SCSI-id's (mostly ascending). This means that connecting an external SCSI device changes the minors of all internal devices with a higher SCSI-id forcing me to change /etc/fstab when connecting the external device and to change it back when disconnecting the device.
I created a small scsiorder patch to solve this by fixing the problem where it originates. For example the kernel parameter "scsi_scanorder=1,10,6" means to scan the devices in the following order: 1,10,6,0,2,3,4,5,7,8,9,11,12,13,15. Which means SCSI-id's 1,10,6 and 0 will allways be mapped on sda, sdb, sdc en sdd (if all connected).
The latest version supports the specification of a specific adapter as well: "scsi_scanorder=io=0xe800:1,10,6;0x330:1,2"
More info: http://flits102-126.flits.rug.nl/~rolf/scanorder/index.html There's a small description of the alternatives like devfs and scsidev as well.
cheers!
Rolf.
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