From: dann frazier <dannf@xxxxxxxxxx> There doesn't appear to be any canonical documentation for adding/removing SCSI devices for Linux 2.6. We document this procedure for IDE in Documentation/ide/warm-plug-howto.txt, so I propose we include a SCSI counterpart doc as well. The best online resource I found for this was Red Hat's Online Storage Reconfiguration Guide, so I'm using the procedure described there (but not their text). Signed-off-by: dann frazier <dann.frazier@xxxxxxxxxxxxx> --- Documentation/scsi/warm-plug-howto.txt | 20 ++++++++++++++++++++ 1 files changed, 20 insertions(+), 0 deletions(-) create mode 100644 Documentation/scsi/warm-plug-howto.txt diff --git a/Documentation/scsi/warm-plug-howto.txt b/Documentation/scsi/warm-plug-howto.txt new file mode 100644 index 0000000..7907cc8 --- /dev/null +++ b/Documentation/scsi/warm-plug-howto.txt @@ -0,0 +1,20 @@ + +SCSI warm-plug HOWTO +==================== + +To detect and enumerate any new devices that have been physically added to +the system on host controller 'hostX': + +# echo '- - -' > /sys/class/scsi_host/hostX/scan + +To prepare the system to safely remove a device 'sdX': + + 1) Make sure that partitions on sdX are unmounted and that there are + no other active references to devices. + 2) Flush any outstanding I/O on device sdX: + # blockdev --flushbufs /dev/sdX + 3) Deactivate the device: + # echo 1 > /sys/block/sdX/device/delete + +At this point it should be safe to remove the physical sdX device from the +system. -- 1.7.5.4 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
