Been using CCIS as Temp cache for several implimentations with no archive configured.

Some of the installations are now holding 20k+ studies.

Question: What exactly is the advantage of archiving studies over just compressing them and keeping on filesystems as they are?

I am considering configuring archives for some installations and a part from the fact that it is easier to manage a 2000-instance CT study as one file rather than many, I would like to know more before.

For instance, wont it take longer to access images either by Q/R or streaming when archived? If the study will remain in the database, then there is no benefit as regards to database perfomance - probably more data in database. . . .

 

I just posted in another message that we have had a few users have problems when using Partition Archives with a fixed size drive. This code was really designed for HSM drives where the disk size is unlimited. We don't recommend using a partition archive without an HSM style drive.

As for the general functionality, the first point is that unless you reach a watermark on a filesystem the study remains on both the partition archive and on the local filesystem after archival.

If you access a study that is "nearline", and thus only on the partition archive, it first has to be brought back "online" through a restore, then it can be access externally. Ie, if a user attempts to stream the nearline study, the client would have to wait to access the study until it has been returned to the filesystem and is available online.

Hope this helps.

Steve