Networker 7.3.2 and right policy

[kristjan007]

Hello

I have one problem and I hope you can help me.


Daily I backup 350gb of data. I backup to disk 3.0 TB and cassete (700GB)

This mean I have to every second day change cassete 2x350 = 700 GB cassete full.

How to set Networker to use all my space in disk 2.5 TB - this mean policy for 1 week 7x350 = 2.450 GB. ??? (Now my networker only use 1.3gb)

Where can I set that policy ?

Be as specific as possible where Can I do that


Thanks Kristjan

 

[a060463xyz]

Hello Kristjan,
I assume you make backup to disk and stage the data via a staging policy to tape.
In this case you have 2 parameters to trigger the staging. First one is the "High Watermark" per default it is set to 90%. This means the filesystem can fill up to 90% of the available space then the staging starts until the "Low watermark" is reached. obviously you never reach the high watermark. So I think in your staging policy is a "max storage period" of 4-5 days configured. After a saveset reaches this max storage period on the diskdevice it will be staged to tape. The amount of free space on the filesystem does not matter. So to use more of youur diskspace you can allow for longer storage periods.

But....

You need to have an approprate backup to disk license (Tier2).
You still have to change your Tape every other day.
Your backup on disks is not as save as backup on tapes.
The staging can take longer times.
Please make sure you use an advanced Diskdevice.

If you dont want to change media so often think about a LTO-5 Tape.
You can store 1,5 TB data without compression on this type of media, with a "true life" compression ratio you can get up to 2,3-2,8 TB dependig of the data (oracle and mssql databases can yield impressive compression rates on tape if you dont compress with database mechanisms during the backup).

 

[kristjan007]

Thanks for answer

"I assume you make backup to disk and stage the data via a staging policy to tape.
In this case you have 2 parameters to trigger the staging. First one is the "High Watermark" per default it is set to 90%. "


Where can I see if I have staging policy to tape.

Where can I found "High Watermark" ???


My data, I hope you could see my environment:

GROUPS
- alpa.linux (host)
browse policy: week
retention policy: week

MEDIA POOLS
DiskBackup
Basic
AlphaDisk (name of group)
Pooltype: Backup
Labeltemplate: Disk

Selection criteria
/emcbackup (location on my disk)


Configuration
max parallesm 0
retention policy 2days





You need to have an approprate backup to disk license (Tier2).
- I use NFS + Linux
You still have to change your Tape every other day.
- ok every second day I change cassete
Your backup on disks is not as save as backup on tapes.
- I have Raid controller - i think is save
The staging can take longer times.
- way ?
Please make sure you use an advanced Diskdevice.
- What you thing about Diskdevice.
I have devices:
- /dev/.. - cassete
- embackup - disk wich si mounted to onother Linux server

LTO-5 Tape - No money