DDS4 Tapes have made backup very slow

[bryanan]

Is that possible?

We're using Arcserve 2000 AE on a windows 2000 server. The backup started asking for a second tape last week. i noticed that the tapes we were using were DDS3 (the total backup is about 25GB). i figured "no problem!", i'll just throw in a DDS4, the tape drive is a 20/40GB DAT in a compaq ml350. Well, it will backup everything now but it now takes about 14 hours to do it. I'm almost positive the only change i made was changing to the higher capacity tapes. today, i checked the compression under Device Manager and it was enabled so i changed it to disabled to see what happens with tonight's backup. is there anything else i can check?

thanks for help,

bryan

 

[bryanan]

well, turning off the compression didn't help. it's still taking 14 hours and it asked for another tape.

so, i installed arcserve sp4, checked the incoulateIT virus scanner to make sure "fast backups" was checked and unchecked the "virus-wall incoming mode" for good measure.

i even tried a small "test backup". it was only 250MB worth of data, but it did run at about 290mb/min as opposed to what the log has been showing, which was 30mb/min.

 

[schillingt]

bryanan - just where is the options to check the incoulateIT virus scanner and the virus-wall incoming mode