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Backup asking for 2nd tape????

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6 replies

by dave.raj

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Morning all,Need some help please regarding backup. Now I have Lotus Domino 6 running on a NT4 server and there are discrepencies with the backup. I use the standard Microsoft Backup program to backup the mail database. I am using DDS4 allowing 40GBto be stored. Now every morning when I come in, there is a message for a second tape to be put in. Now I don't understand this because I am only backing up 24GB. The backup works for about 23Gb and then it asks for second tape. I have hardware compression on but the backup still doesnt work. I hope someone can understand this problem. Please help

Thanks
Dave

6 replies

by tduval

A 40 Go streamer is by definition a compressed 20 Go streamer, assuming that a 2/1 compression level is applicable.

But if you store .zip/rar/ace files, you won't compress anymore, and you limit will be only 20 Go on tape. Same thing if using compressed hard drive...

by uch

Maybe your backup operation is in APPEND MODE. Check your settings & use REPLACE MODE. 40GB tape should be enough in REPLACE MODE.

by hakim

a DDS 4 tape is a 24GB/48 GB, so it will allow you to backup up to 48 GB if your files are compressible, I have never seen it reaching this compression rate in any of my backup the best I did reach is 30 GB, with Hardware / software compression on, I am using it on an Exchange server and I Know that the information Store Database cannot be compressed because it is already compressed, I would assume the same thing is happening with you, also when you set the hardware or the software compression,the hardware compression overides the software compression only when it is possible to compress, I would assume your 23 GB + the catalog file that the backup is writing to tape would make your tape reach its capacity. so I guess that asking for Tape# 2 is normal in your case

Thx
Hakim

by rickster06

The DDS 4 is a 24GB tape. you have reached it.Solutions:
Buy a bigger Drive/Tapes
Drop apps off backed up selection
Users clean out home folders, desktop if your using profiles.
After all clean-up, defrag the whole thing.

All of this will buy you a little time...not much.
Biigger tape is the complete answer!

by rickster06

The DDS 4 is a 24GB tape. you have reached it.Solutions:
Buy a bigger Drive/Tapes
Drop apps off backed up selection
Users clean out home folders, desktop if your using profiles.
After all clean-up, defrag the whole thing.

All of this will buy you a little time...not much.
Biigger tape is the complete answer!

by lucantik

Please help... with DDS5 backup tape..
i want to backup file or append file to tape using tar command but when i run the script there's nothing error. But when I tar (-t) there's no files have been append. The question is..
can't DDS5 using tar -r command? any advices?? please answer ASAP.. please... very please..

thanks
luchan

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