Arcmain Estimates

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Enthusiast

Arcmain Estimates

Hi,

Can we estimate time used for arcmain data copy/restore using linear scale from sample data? i.e. 5 gb is copied in 5 minutes then 1 tb in 1000 minutes.

Regards,

Harpreet

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3 REPLIES
Enthusiast

Re: Arcmain Estimates

Harpreet,

If your network speed is consistent and the same as for the 5 G copy, then yes.

If you are not already, then you may want to use multstream job for Higher volume of data so this will be faster.

RGlass

Teradata Employee

Re: Arcmain Estimates

as always the usual answer "it depends", some other factors in play

Data/objects make up, multi-stream backups work best with large objects if there are a proportinally more tiny objects in a backup set there will be an adverse affect since there is a constant build-up tear-down process for each object this is where using a single-stream backup for things like views & macro databases may perform better but from a backup set intergrity point of view most people would be grouping their data based on mainly on application/business requirements.

Ultimatley the biggest variant would be if you are running the backup/restore against a quiesent system or not, as backup and restore are I/O intensive operations if they have to contend with other processes for a finite resource.

ta'

Enthusiast

Re: Arcmain Estimates

Thanks. My env will be available primarily for arcmain. Also objects is just whole of databases. So  parallel arcmain jobs will give more throughput?