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Retrospect Server 6.1.138, Mac Mini, OS X Server 10.5.2 DVD+RW hardware errors


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Have been running Retrospect for a long, long time and it's always worked flawlessly. A few bad discs here and there but nothing too crazy.

 

We recently set up a new server with the following specs:

Mac mini

Intel Core 2 Duo 2 GHz

1 GB Memory (have 2 GB, just not installed yet)

 

Drive Stats:

PIONEER DVD-RW DVR-K06:

Firmware Revision: Q614

Interconnect: ATAPI

Burn Support: Yes (Apple Shipping Drive)

Cache: 2000 KB

Reads DVD: Yes

CD-Write: -R, -RW

DVD-Write: -R, -R DL, -RW, +R, +R DL, +RW

Write Strategies: CD-TAO, CD-SAO, CD-Raw, DVD-DAO

 

Software:

Retrospect Server 6.1.138

Retrospect Driver Update, version 6.1.14.101

 

 

So here's the deal: We have data on the server as well as an external Drive. We set up an easyScript to alternate and proceeded with the backup (Fresh). This covered approx. 36 DVD+RWs and took about a week (not switching overnight and forgetting to switch a disc) for each A + B backup set.

 

First go around we used Philips DVD+RW 1-4x write speed (which worked in the old G4 server), then moved to Memorex DVD+RW 4x, then to RiData DWD+RW 8x. ALL of these media would have problems (the RiData was the worst) most of the errors were 101 and 102 errors. Usually 3 out of every 10 discs where shot. Sometimes I;d be asked to reinsert for the SAME disc, other times, it would ask for the NEXT disc (even though it still threw the error).

 

Errors:

These crop up what seems randomly. The bulk of the errros are 102.

 

Device trouble: “1-Server Backup Aâ€, error 100 (device rejected command).

 

Trouble writing: “30-Server Backup B†(2134638592), error 102 (trouble communicating).

 

Device trouble: “31-Server Backup Bâ€, error 105 (unexpected end of data).

 

 

Retrospect also takes an extremely long time to boot up.

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