Re: [mdr-users] Btree is there just 2 files (data & Index)

Hi Adam,
by default there are just these two files (per many extents). Plus, 
during the work with the database, a backup file is automatically 
created (kind of a transaction log - with btb extension) that gets 
deleted on the repository shutdown.
MDR and b-tree also supports what we call storage federation. It allows 
you to split up the metadata into several storage files to the 
granularity of a single (or more) extent per two files (btx and btb) and 
mount/unmount these storage partitions with extends as needed.
Martin


Adam wrote:

> Dear All,
>
> One of the questions raised by the HL7 ppl was to do with how many 
> files the btree engine creates. According to the architecture web page 
> the engine has an index file & a data file. Is that it for many 
> extents/models etc or is it one datafile&index per extent/model?
>
> TIA
>
> Adam
>