tonyski Posted November 14, 2002 Report Share Posted November 14, 2002 To date, I have not been able to to use 48X media and get a successful backup with my Mac G4/400, Ezquest 48X12X48 CDRW (Lite-on LTR 48125W) firewire drive , Retrospect 5.0.238 and driver update 3.1. I have tried Imation and Verbatim brand disks but get ERROR 206, Bad Media either during the write or the verify. I did get 1 good backup using 32X media. The drive is listed as compatible in the Retrospect hardware database. Does the rated speed of the media have any effect on the actual backup speed? During Backup each disk takes about 5 minutes to burn. Has anyone had any luck with different brands of 48X media? Is this a hardware or software problem? Am I doing something wrong? Link to comment Share on other sites More sharing options...
AmyJ Posted November 20, 2002 Report Share Posted November 20, 2002 In reply to: Does the rated speed of the media have any effect on the actual backup speed? It can - make sure you're using media rated for your drive. The device is High Speed" CD-RW rated and Dantz recommends that high-speed rated CD-RW be used if using CD-RW discs. In reply to: During Backup each disk takes about 5 minutes to burn. Retrospect loads it's own drivers to write to any supported CD-R drive. These drivers are written to work as efficiently and reliably as possible with the drive. There is no way to adjust the write speed, short of turning compression on or off. Note that Retrospect writes in packet mode and will write data at the highest speed possible for your device. In some cases the firmware of a device will prevent Retrospect from writing data (in packet mode) at the normal designated write speed. This is true for the Panasonic CW-7503, Panasonic CW-7586, QPS Que! Fire 16x10x40 (TEAC) and a few other drives. If you are having slow write speeds, it could be related to any of the following: client speed, network slowdowns, speed of the host, device communication, device firmware limitation or device problems. With a little troubleshooting you should be able to isolate the problem. In reply to: Is this a hardware or software problem? The drive is supported, but there are other factors that could interfere. The following is from the Knowledgebasecolor=blue> and applies to Firewire and USB troubleshooting: Check to make sure you have the latest USB or FireWire firmware update for your computer. Apple often releases firmware updates that may help to resolve USB or FireWire issues. Search the Apple Software Updates Web site for relevant updates. Retrospect lists the current firmware of the drive that you are using in the version column of the Device Status window (accessible from Configure -> Devices). Check with the drive manufacturer for any USB, FireWire or firmware updates. If there is a known problem with a firmware version, this will be listed on the Dantz website. Try a new piece of media to see if the problem is related to a faulty or damaged medium. If applicable, try using a different brand of media. Often drives are picky regarding the brand of media. Follow the manufacturer's recommended list of brands. If you are using a tape drive, clean the heads with a cleaning cartridge. Isolate the device. Another device on the chain may be interfering with the backup device's communication. If your backup device is connected to your computer through a hub or another FireWire/USB device, unplug it and connect it directly to a port on the computer. If it is already connected directly to the computer, try changing ports. If the problem persists, do not reconnect the other devices, and continue down the checklist. You may have a bad cable. Replace the cable that connects the device to the computer. Update or reinstall the FireWire adapter drivers and/or firmware. Corrupt drivers can cause issues that may not be otherwise detectable. Check the manufacturer's or vendor's website for updated drivers. Completely uninstall any other third-party backup software that may be on your machine, including any drivers that software may have loaded for the device. The system board or FireWire/USB adapter in the computer may be having a problem. Install Retrospect on another computer, if available, and try the device there as the only device. The device itself may be defective. If you have implemented all of the preceding steps and get failures on new media after changing media, cables, software, firmware and computers, then the backup device, being the only factor that has not changed, is the the last variable. Contact your drive vendor for further diagnostics, tests, or to inquire about repair or replacement. In reply to: Am I doing something wrong? Most likely not. Link to comment Share on other sites More sharing options...
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