如果你的硬盘频繁启动关闭休眠，那么很容易造成硬盘机械故障。

[fei6643]

是后者，你的数值还真是低啊，我轻轻松松就过1万多了。
还是别试的好，感觉硬盘温度更高了，现在不知道怎么变回去了。

[weive]

会不会是因为你装的时间久了？我才装了1个 半星期，这个数值还没上去。

[BigSnake.NET]

7.10 的内核已经修复了吧.

[fei6643]

那你太牛X了，才一星期就到我一半了

[fei6643]

谁知道，反正照了上面做了，现在数值不动了，原来1分钟内要涨2,3点捏。比抄股票还快。觉得硬盘热量上去了。现在改不回去了，有没有比较折中点的办法。

[bslt]

193 Load_Cycle_Count 0x0032 185 185 000 Old_age Always - 47794
我的也才装了一个多礼拜，现在这么多了？昨天按照那个改了，涨的是比以前慢了，不过怎么改回去了？

[tangjihede]

让暴风雨来的更猛烈些吧，还在质保期内，再说硬盘也便宜

[skyx]

谁知道，反正照了上面做了，现在数值不动了，原来1分钟内要涨2,3点捏。比抄股票还快。觉得硬盘热量上去了。现在改不回去了，有没有比较折中点的办法。

spin up/down cycles (with about 600k supported by seagate drives)

按600k的寿命来算，每分钟涨３个点：

一小时涨 180
一天用电池开机３小时：　180*3=540

那硬盘也有超过1000多天的寿命。电池寿命是充放电５００次，也就是说当你的硬盘过了一半寿命时，你就不大可能用电池了，除非再买块电池


不知道用外接电源是什么情况？如果接上外接电源也是这样，一天开机十个小时的话：
一天涨1800次
那差不多一年你的硬盘就挂了，论坛ee之流的本本用户，注册时间是2005年，硬盘应该换了二块以上才说得过去。



那些电脑开机就开mule bt的人，硬盘时时刻刻都在读写，硬盘是不大可能睡觉的，也许一次都涨不了，有可能最终硬盘挂掉，都是因为坏道的原因。

所以得出的结论是：　越是不舍得用的人，硬盘越容易挂。并且这样挂掉的硬盘盘片差不多还是新的

我的共享精神本来就好，就算不下载，为了方便其他人，我的mule也是开着的，看来不会有这个问题。

不舍得用的，我想还是把硬盘apm关掉为妙。关了后有可能硬盘长开，温度又上来了，寿命又会缩短。

最终结论：
不怎么舍得用硬盘的本友，特别是一有风吹草动，就不知所措的，还是用windows为妙，如果linux最新的内核没解决这个问题的话。 8)

[bslt]

楼上的知道设置了apm那些之后如何恢复初始设置吗？

[darthraven]

这个BUG是所有Linux都存在，还是只有UBUNTU才有。

[helai]

根据最新消息，只是UBUNTU 采用了磁盘或BIOS的默认设置，而由于默认的不当设置，造成这个问题
建议UBUNTU 以后可以用系统设置覆盖这些默认的设置

helai

[helai]

楼上的知道设置了apm那些之后如何恢复初始设置吗？

To enable the power saving features builtin to your harddrive hdparm is your friend. It's a tool that enables you (among other useful things) to spin the drive down, to set its automatic standby timer (the time of inactivity after which the drive spins itself down) and to set the drives internal Power Management mode. (blktool seems to be an alternative, supposedly doing the same things with different command line syntax.)

Here is a short listing of the relevant options:

-B <n> Used to set the harddrives Advanced Power Management mode,
<n> being a number between 1 and 255, where 1 means agressive
power saving and 255 means no power saving, but better performance.

-C Used to check the drives current power state, which is one of
- unknown (command not supported)
- active/idle (normal operation)
- standby (low power mode, drive is spun down)
- sleeping (drive is shut down)

-S <n> Used to set the drives standby (spindown) timeout.
What <n> specifies depends on its value:
- 1-240: multiples of 5 seconds (timeouts between 5 secs and 20 mins)
- 241-251: multiples of 30 minutes (timeouts from 30 mins to 5.5 hours)
- 252: timeout of 21 mins
- 253: vendor defined timeout between 8 and 12 hours
- 254: resered value
- 255: timout of 21 mins and 15 secs
(These interpretations may differ on older drives.)

-y Immediately forces the drive into standby mode.

-Y Immediately forces the drive into sleep mode.
Note that the drive can only be reaccessed after
a complete machine reboot.

-Z Used to disable the automatic power saving functions
of certain Seagate drives.

To get information about your drive and which Power Management features it supports use the -i and -I parameters.
ATTENTION!
Certain laptop drives that are common in ThinkPads (like the newer Hitachi models) will perform head unloads and even spin-down automatically independently from the spin-down timer (-S) when operating in the more aggressive Advanced Power Management (-B) modes. This can reduce the lifetime of the HD by several years in the worst case, so watch those S.M.A.R.T. attributes for excessive unloads and spin-downs!
Laptop-mode

To actually enable the harddrive to shutdown for a longer time and not get started again because of filesystem syncs every few seconds, you'll need to activate Laptop-mode.

The easiest way to do this is to install the laptop-mode-tools.

[airy]

我照着里面说的方法做了，还是不行

[zapper]

这个问题其实就是找(硬盘磁头归位+磁盘降速)和(磁盘热量)的一个平衡点. 哪个高了都不好...

这个问题其实与系统无关. 用windows也一样. 主要还是BIOS和磁盘的firmware. 如果BIOS里没有选项的话, 就是磁盘firmware的问题了...

我的笔记本硬盘是HITACHI的. 默认是启动电源管理, 默认值是128.

如果有用HITACHI硬盘的朋友可以下载这个HITACHI硬盘的设置程序(Feature Tool ).
文件是iso格式, 下载刻盘, 然后用这张盘启动电脑, 进入硬盘firmware设置程序,
手动调一下power management的数值就行了. 我设的220. 254太大了. 偶尔也得让硬盘休息一下啊.
用这个工具还能启动的硬盘的静音模式, 感觉不错...
硬盘待机温度是36-41左右, 那个cycle值也不像开始那样平均10秒+1的疯涨了.
http://www.hitachigst.com/hdd/support/d ... ol_207.iso

官网地址: http://www.hitachigst.com/hdd/support/d ... iskmanager
上面还有linux可用的Binary diskette image.

[bslt]

楼上的知道设置了apm那些之后如何恢复初始设置吗？

To enable the power saving features builtin to your harddrive hdparm is your friend. It's a tool that enables you (among other useful things) to spin the drive down, to set its automatic standby timer (the time of inactivity after which the drive spins itself down) and to set the drives internal Power Management mode. (blktool seems to be an alternative, supposedly doing the same things with different command line syntax.)

Here is a short listing of the relevant options:

-B <n> Used to set the harddrives Advanced Power Management mode,
<n> being a number between 1 and 255, where 1 means agressive
power saving and 255 means no power saving, but better performance.

-C Used to check the drives current power state, which is one of
- unknown (command not supported)
- active/idle (normal operation)
- standby (low power mode, drive is spun down)
- sleeping (drive is shut down)

-S <n> Used to set the drives standby (spindown) timeout.
What <n> specifies depends on its value:
- 1-240: multiples of 5 seconds (timeouts between 5 secs and 20 mins)
- 241-251: multiples of 30 minutes (timeouts from 30 mins to 5.5 hours)
- 252: timeout of 21 mins
- 253: vendor defined timeout between 8 and 12 hours
- 254: resered value
- 255: timout of 21 mins and 15 secs
(These interpretations may differ on older drives.)

-y Immediately forces the drive into standby mode.

-Y Immediately forces the drive into sleep mode.
Note that the drive can only be reaccessed after
a complete machine reboot.

-Z Used to disable the automatic power saving functions
of certain Seagate drives.

To get information about your drive and which Power Management features it supports use the -i and -I parameters.
ATTENTION!
Certain laptop drives that are common in ThinkPads (like the newer Hitachi models) will perform head unloads and even spin-down automatically independently from the spin-down timer (-S) when operating in the more aggressive Advanced Power Management (-B) modes. This can reduce the lifetime of the HD by several years in the worst case, so watch those S.M.A.R.T. attributes for excessive unloads and spin-downs!
Laptop-mode

To actually enable the harddrive to shutdown for a longer time and not get started again because of filesystem syncs every few seconds, you'll need to activate Laptop-mode.

The easiest way to do this is to install the laptop-mode-tools.

谢谢helai!!!3x