Rescanning SCSI/SATA bus

[Jan Engelhardt]

Hi,


when trying to do a rescan on (1) sata_nv/2.6.18 (2) sym53c83xx/2.6.21, 
I get:

11:40 sun:~ # cd /sys/class/scsi_host/host0/
11:40 sun:../scsi_host/host0 # ls
can_queue    device     proc_name  sg_tablesize  subsystem  
unchecked_isa_dma
cmd_per_lun  host_busy  scan       state         uevent     unique_id
11:40 sun:../scsi_host/host0 # echo 1 >scan 
-bash: echo: write error: Invalid argument

What is the proper way to trigger a rescan, if it comes to be necessary?

thanks,
	Jan
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