See the warning below. How can a hard drive be erased securely? United Kingdom – English. This entry in the FAT table either indicates that this is the last cluster of the file, or points to the next cluster. Tell us what we can do to improve the article Submit. The current hard disk drive is:

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Windows applications running under eComStation using WIN-eComStation function perfectly, and in many cases will perform better especially databases and other disk-bound programs. New Zealand – English.

Contiguous storage Separate date stamps for file creation and last access and modification Less file fragmentation Smaller cluster size Support for storage devices of up upfs GB Faster disk operation and file access of the root directory at the midpoint of the disk rather than the beginning The advantages of HPFS include: HPFS does a pretty good job of keeping hpgs from getting fragmented, and because of its design, it’s not really a big deal if hpfw files are fragmented.

For further discussion of FAT advantages, see the following: What’s really going on in that Cisco ASA of yours?: The advantages of HPFS include: This means that searching for a file is done by conducting a modified binary search strategy, with significantly fewer disk accesses than the linear searching of FAT.


This page was last edited on 14 Julyat This acts like a network redirector, allowing all access to FAT drives to proceed normally but redirecting HPFS access through the eComStation kernel which is running in the background.

HPFS is much smarter. Then there’s the hpds structures themselves. And it’s even worse: South Africa – English. Undelete utilities try to directly access the hardware, which cannot be done under Windows NT.

DOS utility programs for disk management generally cannot be used under eComStation. The FAT filesystem has very little redundancy to support data recovery.

High Performance File System

It is also highly tunable by experienced administrators. FAT allocates clusters which can be very large 64 KBytes maxgiving rise to wasted ‘slack space’. Updating the FAT table is very important as well as time consuming. Unsourced material may be challenged and removed.

Overview of FAT, HPFS, and NTFS File Systems

On FAT, you need to buy additional utilities, and even then, there are no guarantees. But under eComStation, although you may act promptly to recover the file, the space which hppfs occupied may already have been reused by the system, for swap file growth, INI files, temp files, or data saved from otherapplications.

The basic answer here is ‘not really’. Skip to main content.

Partition dox drive so that you have a C: For these reasons, CHKDSK can recover most filesystem problems without the need for additional ‘disk maintenance’ or ‘crash recovery’ software. First, every sector used in the filesystem structures has a signature, between two and eight bytes in length, at the beginning, which uniquely identifies it. Since each file typically ends a little shy of half-way through its last cluster, this means that there is a little over half a cluster typically 16 KB of slack space associated with each file.


The alternative technique is to use a utility designed for partition and logical drive management such as Powerquest’s Partition Magic.

HPFS: FAT File System

Views Read Hfs View history. Directory entries are simply organised as a linear list, so that just about the best search strategy is to start at the beginning and search forward until you either find what you want or hit the end of the list. COM there, which would take precedence. This is because it is dangerous in a multitasking environment to allow, e.

Start by rejecting C: That is, the following scheme will not work: