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Hermetic Systems
When Windows `deletes` a file it does not actually destroy the contents of the file but rather simply unlinks the file from the file directory system, leaving the contents of the file in the disk sectors. This data will remain there until the operating system uses those sectors when writing new data. Until the old data is overwritten (and this may take months or longer) it can be recovered by programs that read disk sectors directly, such as forensic software (so called because it is used to obtain evidence in criminal investigations and also in legal discovery).
In order to be sure that a deleted file really is deleted, gone for good, its contents never to be seen again, it is necessary to overwrite the data sectors of that file. Data Destroyer purges data in files, where `purge` means to destroy, to eliminate completely by overwriting, so that the data cannot be recovered by any means. Data Destroyer allows you to destroy the contents of a file by overwriting it several times (or many times) with random bytes, and with bytes with alternating bit patterns, before the file is deleted (i.e., unlinked).
Data Destroyer can purge either: (a) a single file, (b) all files in a folder, (c) a specified subset of files in a folder, (d) all files in a folder and all files in all subfolders of that folder, (e) a specified subset of all files in a folder and in all subfolders of that folder, (f) all space on a disk and (g) all unused clusters on a disk.
This software checks for possible errors in user input, and is designed to minimize the chance of accidentally purging a file that you wish to keep.
Another feature of Data Destroyer is that you can get an accurate estimate of the time required to perform a purge operation. A lengthy purge operation may require several hours, or even days, and if you did not have an accurate estimate of the time needed before beginning the operation you might get worried, not knowing how long it still has to run.
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Horizon DataSys Inc.
FirstDefense-ISR is an Instant System Recovery solution that has been designed for enterprise and mid-range servers and mission critical workstations, running Windows 2000, XP, and Server 2003 operating systems. FirstDefense-ISR functions transparently and allows administrators to quickly restore their systems to any complete predefined configuration. No special hardware is required. Furthermore, you do not require special CMOS, or additional disk partitions to be created. FirstDefense-ISR works on single or multi-partitioned systems, fully supporting RAID 0, 0+1, 5, and/or in clustering environments.
FirstDefense-ISR performs full-system backups for the purpose of immediate system recovery. The concept was developed as a result of years of listening to IT professionals concerned about having to deal with non-recoverable Windows blue screens, service pack installs going awry, and critical files becoming corrupted. These occurrences render the system unbootable and data is inaccessible until the problem is repaired.
FirstDefense-ISR periodically (and transparently) takes snapshots of the current state of the user’s system and applications software. It has the capability of storing up to ten point-in-time snapshots. Following a system crash, the user can immediately fall back to the most recent and uncorrupted snapshot. This reduces the MTTR to virtually zero and enables users and IT staff to instantly repair system crashes without the loss of productivity that results from extensive downtime.
Ability to create and maintain up to 10 "point-in-time" system snapshots. Each snapshot is bootable with no rebuild required.
Differential (changed files only) copy engine for fast snapshot updates.
Data Anchoring feature makes data files available to any snapshot that is booted.
Ability to create a compressed snapshot using NTFS file compression for a significantly smaller snapshot.
Ability to archive snapshots to another device.
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