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Old 04-21-04, 06:56 AM   #1
eL_PuSHeR
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Default WinXP installation oddity - Confirm?

Hi, all!

Have anybody seen this behaviour when installing winxp. I have installed winxp on several different machines and wanted to do a 20GB NTFS partition on some of them. Well the odd thing is, that when selecting deleting an existing FAT32 partition and reformatting it using the installation program (harddisk size was 20GB, so i made only one partition), it ended up using 4KB clusters. But when i converted another 20GB FAT32 partition using CONVERT X: /FS:NTFS it ended up with 512b clusters (just as it is on my machine). Why the difference in cluster sizes for partitions of the same size?
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Old 04-21-04, 12:36 PM   #2
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Default Re: WinXP installation oddity - Confirm?

Quote:
Originally Posted by eL_PuSHeR
Hi, all!

Have anybody seen this behaviour when installing winxp. I have installed winxp on several different machines and wanted to do a 20GB NTFS partition on some of them. Well the odd thing is, that when selecting deleting an existing FAT32 partition and reformatting it using the installation program (harddisk size was 20GB, so i made only one partition), it ended up using 4KB clusters. But when i converted another 20GB FAT32 partition using CONVERT X: /FS:NTFS it ended up with 512b clusters (just as it is on my machine). Why the difference in cluster sizes for partitions of the same size?
Thats the benefits of using NTFS, Back when FAT32 was mainstream it used bigger clusters however what was a downside was if you only had a 64K chunk of data ona 512kb cluster/block the rest of the cluster/block size is lost, so NTFS simply made the clusters/block smaller which regained un-used clusters on each block of the platter, effectively recouping what would otherwise be lost space because of the cluster/block size relationship.
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Old 04-22-04, 11:00 AM   #3
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Default Re: WinXP installation oddity - Confirm?

Thanks but that doesn't answer my question about the two different cluster sizes for two same size partitions.
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Old 04-22-04, 12:26 PM   #4
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Default Re: WinXP installation oddity - Confirm?

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Thanks but that doesn't answer my question about the two different cluster sizes for two same size partitions.
NTFS was designed to use 4k clusters and FAT32 was designed to use 512KB , I guess explaining why went over your head, none the less it's not a issue, its indicative of its method of operation(s) as both file systems are different and NTFS uses a much more efficient file system using 4k clusters as the OLD FAT32 used 512KB clusters and if you filled that 512KB cluster with 256KB of data - then the other 256KB of that sector cannot be used (not very efficient) So you lose space and NTFS free's up that space by using 4KB sectors. Thats just one of a few aspects that makes NTFS more efficient. If you formatted one partition and you made it NTFS and the other partition is FAT32 thats exactly what you get - one partition NTFS uses 4k clusters and your other one FAT32 uses 512KB, thats how it works! and those are one of the differences between the two. If you want them the same them format all partitions to be NTFS, if you dont then its no big deal.

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Old 04-23-04, 09:04 AM   #5
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Default Re: WinXP installation oddity - Confirm?

You have mistaken 512b(yte) with 4KB (Kilobytes). 512KB is way too big a cluster size for a partition. You'd lose lot of space.
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Old 04-23-04, 09:54 AM   #6
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Default Re: WinXP installation oddity - Confirm?

Quote:
Originally Posted by eL_PuSHeR
You have mistaken 512b(yte) with 4KB (Kilobytes). 512KB is way too big a cluster size for a partition. You'd lose lot of space.
Well I hope you fix your problem what ever that may be.
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Old 04-24-04, 04:59 AM   #7
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Default Re: WinXP installation oddity - Confirm?

OK, Thanks for your time and replies, anyway.
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