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RE: Windows 98[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: <seaoc(--nospam--at)seaoc.org>
- Subject: RE: Windows 98
- From: "Dennis S. Wish" <wish(--nospam--at)cwia.com>
- Date: Mon, 4 May 1998 15:15:13 -0700
Bill, This is from "Partition Magic Users Guide" Chapter 4: Concepts (pg 135-6) "The New Technology File System (NTFS) is accessible only through the Windows NT operating system. NTFS is not recommended for use on disks of less than 400MB because it uses a great deal of space for system structure. The central system structure of the NTFS file system is the master file table (MFT). NTFS keeps multiple copies of the critical portions of the master file table to protect against data loss. [Bill, FAT stores a duplicate or mirror copy on the drive of the folder structure which takes less space.] NTFS uses clusters to store data files, but the size of the cluster is not dependent on the size of the volume. A cluster size as small as 512 bytes can be specified, regardless of volume size. Using small clusters reduces the amount of wasted disk space and the amount of file fragmentation, a condition where files are broken up over many noncontiguous clusters and which results in slower file access. Thus, NTFS provides good performance on large drives. The NTFS file system also supports hot fixing, through which bad sectors are automatically detected and marked so that they will not be used. On and NTFS volume, you can us all Partition Magic features except features that are specific to the FAT and FAT32 file systems." One thing that will be implemented on Windows 98 that is not yet available is something called "Windows 98 Aligned" which means that windows won't release cached code as long as it is still running. The biggest savings comes in CPU time. There is a very good discussion of it in the latest (May 1998) Windows Magazine (http://www.winmag.com which you can download or read. It requires vendors to align the memory blocks of their codes (a little too complicated for me to comprehend). However, Microsoft promises a utility that the vendor can use to automate the process. Dennis -----Original Message----- From: Bill Allen, S.E. [mailto:billallen(--nospam--at)earthlink.net] Sent: Monday, May 04, 1998 1:55 PM To: seaoc(--nospam--at)seaoc.org Subject: Re: Windows 98 I'm still confused. The cluster size is "constant" in Win95. The problem is that, in Win95, only one file can be in a cluster. So, if the cluster size is 16kb or 32kb, a 2kb file actually takes up 16kb or 32kb (depending on the cluster size). A 40kb file takes up 48kb or 32kb (again, depending on the cluster size). Prior to Win95B, you had to partition large drives to get down to 16kb clusters, otherwise you automatically had 32kb clusters. Is your point that, by using the NTFS, you can put more than one file in a cluster? What about if you only "upgrade" to NT and your HDD was formatted under Win95A or earlier? I have NT4.0 on the shelf, but I haven't installed it since I saw more problems (device drivers, etc.) than it was worth. Thanks, Bill Allen -----Original Message----- From: Bill Polhemus <polhemus(--nospam--at)insync.net> To: 'seaoc(--nospam--at)seaoc.org' <seaoc(--nospam--at)seaoc.org> Date: Monday, May 04, 1998 1:29 PM Subject: RE: Windows 98 > > >-----Original Message----- >From: Bill Allen, S.E. [SMTP:billallen(--nospam--at)earthlink.net] >Sent: Monday, May 04, 1998 3:03 PM >To: seaoc(--nospam--at)seaoc.org >Subject: Re: Windows 98 > >So, Bill, are you saying that with NTFS, that a 2kb file doesn't take up 16 >or 32kb space on a HDD? > >[Bill Polhemus] > >That's correct. The cluster size is constant. > >
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- Re: Windows 98
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