1 --- hdparm-4.6/hdparm.8.old Tue Dec 18 22:48:23 2001
2 +++ hdparm-4.6/hdparm.8 Tue Dec 18 22:54:59 2001
5 (lowest power mode, drive is completely shut down).
13 flags can be used to manipulate the IDE power modes.
17 Set the drive's doorlock flag. Setting this to
20 will lock the door mechanism of some removeable hard drives
21 (eg. Syquest, ZIP, Jazz..), and setting it to
22 -.b 0 will unlock the door mechanism. Normally, Linux
24 +will unlock the door mechanism. Normally, Linux
25 maintains the door locking mechanism automatically, depending on drive usage
26 (locked whenever a filesystem is mounted). But on system shutdown, this can
27 be a nuisance if the root partition is on a removeable disk, since the root
28 partition is left mounted (read-only) after shutdown. So, by using this
29 command to unlock the door
32 the root filesystem is remounted read-only, one can then remove the cartridge
33 from the drive after shutdown.
36 flag can be used to find the maximum setting supported by an installed drive
37 (look for MaxMultSect in the output).
38 Some drives claim to support multiple mode, but lose data at some settings.
39 -Under rare circumstances, such failures can result in
40 -.B massive filesystem corruption.
41 +Under rare circumstances, such failures can result in \fBmassive filesystem
45 Get or set the "ignore write errors" flag in the driver.
47 .B Use this feature with caution:
48 some drive/controller combinations do
49 not tolerate the increased I/O latencies possible when this feature is enabled,
51 -.B massive filesystem corruption.
52 +resulting in \fB massive filesystem corruption\fP.
57 On drives which support alternate transfer modes,
59 can be used to switch the mode of the drive
62 Prior to changing the transfer mode, the IDE interface should be jumpered