1 |
Alan McKinnon schrieb: |
2 |
> On Tuesday 02 September 2008 21:14:25 Florian Philipp wrote: |
3 |
> |
4 |
>> You should also consider putting them near the beginning of the disk. |
5 |
>> You can do this by booting a live-CD and use gparted to move your |
6 |
>> root-partition. |
7 |
> |
8 |
> These days you have absolutely no guarantee that a partition is in the |
9 |
> location on the disk where the cylinder numbers imply they should be. Disk |
10 |
> manufacturers are free to put the bits of a disk that add up to this mythical |
11 |
> thing called a "cylinder" any place they like, as long as the mapping between |
12 |
> them is maintained. There is also no way I know of to ask a disk where a |
13 |
> specific sector actually resides. |
14 |
> |
15 |
|
16 |
No guarantee, but a pretty high chance: |
17 |
dd if=/dev/sda2 of=/dev/null |
18 |
... |
19 |
957169664 bytes (957 MB) copied, 17.5531 s, 54.5 MB/s |
20 |
|
21 |
dd if=/dev/sda12 of=/dev/null |
22 |
... |
23 |
820854784 bytes (821 MB) copied, 21.4136 s, 38.3 MB/s |
24 |
|
25 |
I wouldn't care about this difference if I had a fast and big HDD or a |
26 |
RAID but on a 5400rpm notebook HDD it really makes a difference, |
27 |
especially when you are using tuxonice for suspend to disk. |