Arcserve 2000 Backup multiple Tapes

[fkoch2001]

Hello,

i have a problem. I made a job which writes every day data to a group of 3 tapes. I wish, that after the third tape is full, the first tape will be overwrited with the new data.( as the next data media)
I made the job with the option Append to the data medium and in the option for the additionell data medium the option first data medium with the same name, then empty and then any.
But that doesn't work. After the third tape is full i will be promted th insert the forth tape.

Anyone an idea ?

Thanks in advance !

 

[SaintJames]

Have you tried to change the retention time of the media pool?

I don't understand the value in performing a backup and then overwriting the recently written media?

 

[mohamdr]

Hi
Are you using a custom Schedule or Rotaion Scheme?
Have you assigned those tapes to a media pools? if yes are they apearing in the save set.

regards,
mohamdr

 

[fkoch2001]

Hi,

to mohamdr, i have not assigned the tapes to a medio pool.
Must I ? , is is tnot possible to create a job with 3 tapes in a group in which the first tape will be overwritten when the tree tapes are full ?

Thanks for your fast help....

 

[mohamdr]

Hi,
I
After the third tape is full i will be promted th insert the forth tape.

SaintJames (Programmer) Jul 14, 2003
Have you tried to change the retention time of the media pool?

I don't understand the value in performing a backup and then overwriting the recently written media?

 

[mohamdr]

Hi,

I am 100 % agreed with SaintJames
This the way the backup should work there is no use to overwrite the recently written media
There is no value from the backup,can you please let me know what is backup mean?backup is to keep a copy of your data and restore them when it is required not to overwrite them after somtime ,you should keep them as long as possible.

regards,
Mohamdr

 

[fkoch2001]

Hi mohamdr,

not at all, we need the backup data onlay for about 5 weeks.
We make another job for weekly and monthly backup data.
The monthly stored data will not be overwrited for 12 Month.
But for the daily backuped data we need only 3 Tapes to hold the data. We use LTO 2 Tapes with 200/400 GByte.
That is enough for about 4 weeks.

 

[SaintJames]

I would suggest that you perform Differential backups. This will allow you to make better use of the 3 tapes you have dedicated for daily backups.

 

[fkoch2001]

of course, i made a Differential Backup. But the question is : How can i make a backup-job that overwrites the oldest of the 3 tapes when all tapes are full ?

 

[mohamdr]

Hi
The best way is to do a scheduled job with GFS rotation
it will take care of everything and it will overwrite your daily backup each week and it will keep weekly backup for 3 weeks and will overwrite your monthly media after 11 months to do this your need minimum of 21 tapes.

regards,
mohamdr