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On Tuesday 02 September 2008 22:26:08 Florian Philipp wrote: |
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> Alan McKinnon schrieb: |
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> > On Tuesday 02 September 2008 21:14:25 Florian Philipp wrote: |
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> >> You should also consider putting them near the beginning of the disk. |
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> >> You can do this by booting a live-CD and use gparted to move your |
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> >> root-partition. |
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> > |
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> > These days you have absolutely no guarantee that a partition is in the |
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> > location on the disk where the cylinder numbers imply they should be. |
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> > Disk manufacturers are free to put the bits of a disk that add up to this |
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> > mythical thing called a "cylinder" any place they like, as long as the |
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> > mapping between them is maintained. There is also no way I know of to ask |
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> > a disk where a specific sector actually resides. |
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> |
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> No guarantee, but a pretty high chance: |
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> dd if=/dev/sda2 of=/dev/null |
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> ... |
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> 957169664 bytes (957 MB) copied, 17.5531 s, 54.5 MB/s |
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> |
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> dd if=/dev/sda12 of=/dev/null |
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> ... |
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> 820854784 bytes (821 MB) copied, 21.4136 s, 38.3 MB/s |
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> |
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> I wouldn't care about this difference if I had a fast and big HDD or a |
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> RAID but on a 5400rpm notebook HDD it really makes a difference, |
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> especially when you are using tuxonice for suspend to disk. |
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What do you conclude from this? |
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-- |
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alan dot mckinnon at gmail dot com |
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