Memofix is one of only a handful of companies in Canada that have the technical skill and experience to service and repair the most popular tape drives from yesterday and today. If you can't access the data on your tape for whatever reason, Memofix is your solution for tape data recovery in Toronto.
- Reasons for Data Loss from Tape Drive Catridges
- How We Recover Data from Tape Drive Catridges
- Supported Cartridges, Formats & Tape Backup Software
Unfortunately, the most common causes of data loss on tape cartridges are avoidable as they result from human error. Examples of this include tape decay due to poor storage conditions and accidentally re-initializing an important tape cartridge. We also see many physically damaged tapes with creases, broken or snapped media and excessive read errors. There is one other category of tape recoveries where there are no apparent faults with the tapes or the backup set but because the tapes are old and obsolete, the client no longer possesses the tape drives or software necessary to restore the data. Here are some more causes or symptoms of data loss from tape cartridges:
|Accidental overwrite||Fire, Heat, Smoke Damage||Overwritten header||Snapped or Broken tape|
|Backup software lost/unknown||Hardware no longer supported||Partial restore read hangs||Stretched tape|
|Corrupted Header||Medium media read error||Physical damage||Tape spool damaged|
|Creased or Crumpled tape||Missing tapes||Re-initialized tape catridge||Tape drive defective|
|Degraded tape media||New session started||Re-formatted tape catridge||Tape Media decay|
|Dropped or cracked casing||Old Age Decay||Sabotage or Malicious Intent||Water or Flood Damage|
Tape cartridges are a removable media thus eliminating some of the complexity inherent in permanent media storage devices like hard drives. We need only concern ourselves with the condition of the tape media, as we provide and control the integrity of the actual tape drive being used to read the cartridge.
Inspecting the tape for physical damage prior to any read attempts is critical to prevent further damage. Once we have repaired or stabilized the damage, our first step is to create a working copy or exact image of the entire tape (or as much of it as we can read). Our recovery engineers will then analyze the working image to determine the tape format, tape backup software used and the condition of any backup sets. Depending on the initial diagnosis a solution is proposed and initiated.
While simple logical problems with tape backups do occur, the most common scenarios we see are tapes being accidentally overwritten with a new backup set. Assuming the new backup did not overwrite too much of the tape, we can usually help. In many instances we may need to build a new dummy header based on the original tape parameters as the header essentially tells the tape drive how big to expect the backup set to be. The reconstructed header is then spliced onto the start of the original tape, essentially fooling the tape drive and allowing us to access the remaining data from your desired original backup.
Unfortunately, tape recovery often requires Memofix to physically alter the original media, such as described in the above situation. A similar invasive technique may also be required to recover data from a tape that has been crumpled, creased or mangled. We often need to physically remove the damaged areas of the tape, splice the good sections back together and salvage the data from the remaining tape.
Tape recovery from physically damaged tape is typically very hands on and labor intensive. Consequently it is very expensive and justified only for the most critical data.
Supported Manufactures of Tape Drive Catridges
|Breece Hill||Fuji||Maxell||Spectra Logic|
|Certance||Fujitsu||Overland Storage||Storage Tek|
Supported Tape Drive Formats
|LTO||Ultrium LTO 1
Ultrium LTO 2
Ultrium LTO 3
Ultrium LTO 4
Ultrium LTO 5
|SDLT||Super DLT I
Super DLT II
|Iomega||Ditto 2GB QIC|
Some of the Tape Backup Software We Support
|ARCServe||Microsoft Tape Format MFT||Sytos Plus|
|Cheyenne||NT Backup||Unix tar, cpio, fsbackup, ufsbackup|
|Colorado Backup||Palindrome Backup Director||Veritas NETBackup|
|IBM Tivoli||Retrospect||Veritas Sytos|
|Legato Networker||SIDF System Independent Data Format||Windows Backup Format|