HotBackup. Dual, Synchronised SCSI Solid State Drive

The CF2SCSI / SCSIFLASH HotBackup Drive enables two CompactFlash (CF) cards to work as a synchronised pair providing increased resilience and fault-tolerance. The HotBackup Drive is available in 50-pin, 68-pin and 80-pin variants supporting 2.5 inch, 3.5 inch or larger 5.25 inch form factors and operates with CF cards of up to 256GB in capacity.

Adobe PDF file icon 24x24  HotBackup Drive Datasheet
Adobe PDF file icon 24x24  Press Release

FLASH2GUI - Optional ethernet support for centralised backup & restore capability available removing the need to rotate media. Primary data storage is always written to the CF card. No software change to the host required.

More details on FLASH2GUI backup & restore software click here

Solid State Disks Ltd, design and manufacture the Solid State SCSI SCSIFlash™ drive


Solid State Disks Ltd (SSD), the advanced storage systems design, development and integration specialist, has launched HotBackup, a solid state, CompactFlash-based dual drive for replacing ageing and failed SCSI-based legacy electro-mechanical storage systems including hard disk, magneto optical, tape and floppy drives.

Incorporating twin CompactFlash drives, HotBackup enables the two CompactFlash (CF) cards to work as a synchronised pair providing increased resilience and fault-tolerance.

The HotBackup drive is presented to the host system as a single logical drive that will continue to operate seamlessly.

This also allows the secondary CF card to be removed or dismounted for backup over the Ethernet port, giving a full disk image backup without dismounting the drive. The HotBackup functionality ensures that any previously paired CF card, maintains a log file of the sectors written so that it can be used to quickly re-synchronize with the removed or replaced second card to re-establish a synchronised pair.

For making full image backups, it also includes a remote dismount feature which operates independently from the control of the host system to enable any CF card in a synchronised pair to be taken offline with the minimum of operational interruption to the host. An image can be restored to a CF card either by inserting a backup CF card or writing to a CF card over the Ethernet port.

The HotBackup drive fully integrates with SSD’s Recovery Manager network software which is used for control and configuration as well as network backup and restore operations.

HotBackup is ideally suited for use in process critical legacy computer systems where downtime for maintenance and backup cause major disruption and expense. These are found in a range of industries including telecommunications, semiconductor manufacturing, industrial process control, engineering and manufacturing, power generation, oil & gas, military & aerospace, flight simulation and post-production.

The HotBackup drive is available in Scsi 50-pin, Scsi 68-pin and Scsi 80-pin variants supporting 2.5 inch, 3.5 inch or larger 5.25 inch form factors and operates with CF cards of up to 256GB in capacity.


  • HotBackup Drive is available in 2.5" 50 pin SCSI Solid State Drive / 3.5” 50 pin Narrow SCSI Solid State Drive / 3.5” 50 pin Narrow SCSI SSD Drive / 68 pin Wide, Wide Differential, Wide LVD SCSI Solid State Drive / 80 pin Wide, Wide LVD (8bit) SCSI Solid State Drive variants.
  • HotBackup Drive enables the two CompactFlash (CF) cards to work as a synchronised pair providing increased resilience and fault-tolerance.
  • HotBackup Drive is presented to the host system as a single logical drive that will continue to operate seamlessly with the host machine.
  • Allows secondary CF card to be removed or dismounted for backup over the Ethernet port, giving a full disk image backup without dismounting the drive CF card.
  • The HotBackup functionality ensures that any previously paired CF card, maintains a log file of the sectors written so that it can be used to quickly re-synchronize with the removed or replaced second card to re-establish a mirrored pair.
  • Board is low power, using 5V only, and has an optional add-on display and pushbutton user interface.

For full bit for bit image backups, it also includes a remote dismount feature which operates independently from the control of the host system to enable any CF card in a synchronised pair to be taken offline with the minimum of operational interruption to the host.

  • A bit for bit image can be restored to a CF card either by inserting a backup CF card or writing to a CF card over the Ethernet port.
  • Small format PCB converts Compact Flash Media to appear as a SCSI device on a Host’s SCSI bus.
  • 2.5” form factor PCB which will replace any 2.5” disk drive or larger drives with customised housing.
  • Will fit in a 3.5” or customised Disk slots.
  • Allows the CF Cards up to 64GB (SLC) and 256GB (MLC) to attach to the SCSI bus.
  • SCSI Host will typically see the device as a disk drive of any emulation.
  • Board is low power, using 5V only, and has an optional add-on display and pushbutton user interface.
  • Microcode is field upgradable via integral comport
  • Optional integration support available if required

Board size: 2.5” & 3.5” Form factor.
Compact Flash: Dual 3M header for Type 1 & 2 cards, Push button Ejector to remove CF.
CF Capacities Supported: ~ up to 256GB (MLC) for removable drive and non mission critical applications and up to 64GB (SLC) for fixed disk heavy read/write mission critical applications.
Power: 5 Volts only @ 0.8 Watt (Typical) + CF requirement.
Power connector: Standard Disk drive type SCSI-1 and 2 Compatible. 50 pin DIL 0.1” Connector.
SCSI transfer rate: 10Mbytes/second.
display and real-time diagnostics.
RS232 Serial Port for microcode load and real time diagnostics.


A full list of example emulations for HotBackup drive can be found here

Custom Emulation Solutions

We have an in house team of highly experienced technical engineers, based in both the US & UK who have an in-depth knowledge of legacy data storage systems. We can develop a full replacement system as per your requirements or offer support in developing and creating an custom emulation that extends the life of the legacy computer.

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