[3864] in RedHat Linux List
Re: Cluster size?
daemon@ATHENA.MIT.EDU (M. Neidorff)
Mon Nov 11 11:50:23 1996
Date: Mon, 11 Nov 1996 11:47:50 -0500 (EST)
To: redhat-list@redhat.com
From: "M. Neidorff" <neidorm@haven.ios.com>
Resent-From: redhat-list@redhat.com
Reply-To: redhat-list@redhat.com
At 02:03 AM 11/11/96 +0000, you wrote:
>
>> From: Borg <{vladimip@iceonline.com}>
>> Kirill Shtengel wrote:
>>
>> ..............less than 512 MB (You certainly don't want
>> > to have a single 900M DOS partition - it's a waste of space due to
>> > the large cluster size). I also put the Linux root
>> > partition within the first 512 MB of the hard drive..........
>>
>> Can you tell us what exactly the size of a DOS
>> cluster and that of Linux cluster? I know I can
>> customize inode size when fsck'ing but how do I
>> specify a custom cluster size? I (foolishly)
>> assumed cluster size depended on drive architecture
>> rather than on operating systems.
>>
>>
>I'm not sure what is the OS-dependence of the cluster size, but this
>is how it depends on the partition (NOT the HD!) size under DOS/Win95:
>
>
> Partition size Sector/cluster Cluster size
> 0 - 15MB 2 1K
>
> 16 - 127MB 4 2K
>
> 128 - 255MB 8 4K
>
> 256 - 511MB 16 8K
>
> 512 - 1023MB 32 16K
>
> 1024 - 2145MB 64 32K
>
>(Taken from the Western Digital FAQ:
>http://www.wdc.com/support/FAQ/general.html ).
>
>In other words this means that if all 900MB left for DOS are
>used as a single 900MB partition, then any 100 Byte *.bat, *.ini
>etc. file will take 16K of the actual disk space - lovely, isn't it?
>
>I don't know if something similar is true for the Linux partitions,
>but I suspect so. Does anyone know the answer?
>Cheers,
>
The last full install of linux I did was RH 2.1. When I was creating my
partitions I was asked for my cluster(?) size (512,1024,2048 bytes) and
number of inodes. I'm going from memory and I may be wrong, flames>nul if I
am. DOS/WIN/WIN95 make all the assumptions for you about cluster size. In
unix you set it up yourself. Note that it is possible to set up an
insufficient number of inodes for the number of clusters on a disk.
<< Mark >>
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| Mark Neidorff | The trouble with being |
| neidorm@haven.ios.com | in the rat race is |
| Just Answers! | that when you win, |
| Computer Systems Solutions | you are still a rat. |
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