forked from Minki/linux
18 lines
708 B
Plaintext
18 lines
708 B
Plaintext
|
dm-flakey
|
||
|
|
=========
|
||
|
|
|
||
|
|
This target is the same as the linear target except that it returns I/O
|
||
|
|
errors periodically. It's been found useful in simulating failing
|
||
|
|
devices for testing purposes.
|
||
|
|
|
||
|
|
Starting from the time the table is loaded, the device is available for
|
||
|
|
<up interval> seconds, then returns errors for <down interval> seconds,
|
||
|
|
and then this cycle repeats.
|
||
|
|
|
||
|
|
Parameters: <dev path> <offset> <up interval> <down interval>
|
||
|
|
<dev path>: Full pathname to the underlying block-device, or a
|
||
|
|
"major:minor" device-number.
|
||
|
|
<offset>: Starting sector within the device.
|
||
|
|
<up interval>: Number of seconds device is available.
|
||
|
|
<down interval>: Number of seconds device returns errors.
|