Hard Disk Sentinel vs MHDD
Hard Disk Sentinel
hdsentinel.comMHDD
hddguru.comSide by side
| Figure | Hard Disk Sentinel | MHDD |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Windows | Yes | — |
| Linux | Yes | Yes |
| Plans published | 7 | 1 |
| Spec score · Disk Diagnostic Software | 8.2 (#6) | 7.2 (#19) |
| Intended users | The maker describes serving home users, server administrators, small and large companies, and civil organizations. | The manual says MHDD is not easy for users without deep knowledge of how disk drives work. |
| Purpose | Hard Disk Sentinel monitors, diagnoses, tests, and reports on hard disk and SSD health, performance degradation, and failures. | MHDD is a freeware tool for low-level hard drive diagnostics and management. |
| Support | Registration includes free life-of-product technical support and help. | The product page links to an MHDD discussion forum, FAQ and documentation. |
Plans
Hard Disk Sentinel
- DOSFree
- LinuxFree
- TrialFree
- Standard$22, paid once
- Professional$33, paid once
- Professional Family$59, paid once
- Enterprise$219.50, paid once
In their own words
Hard Disk Sentinel
Hard Disk Sentinel has no write-up on Specifiction yet; its figures are above.
MHDD
MHDD is a freeware utility for low-level hard drive diagnostics and management. It supports IDE, Serial ATA and SCSI drives, and can access USB storage through USB-to-SCSI emulation drivers. Diagnostic tools scan drives, show SMART attributes, run tests and log scan results. Drive operations include low-level erasing, sector reads and writes, bad-sector remapping, and changing drive size with HPA. A simple scripting engine and batch-file support allow tests to run without an operator. The maker offers the software as a CD image, self-extracting floppy image or archive of executable files. The manual lists an Intel Pentium or higher, 4 megabytes of RAM, a keyboard, and DR-DOS or MS-DOS 6.22 or higher as requirements. It notes that some AHCI controllers may not be recognized, with IDE or Legacy mode suggested if needed. The manual warns that MHDD can damage a drive or cause data loss, particularly around erase or remap operations, and advises backing up first. It also says the tool is difficult for people without deep knowledge of disk drives. MHDD is listed at free.