Hi,
I dont know if its a coincidence but I have managed to get into a bit of a state with regard to our data warehouse.
Firstly when the server was specced I dont think anybody actually worked out what size the databases would work out to be. I have started troubleshooting initially because of a lack of disk space. The DW was set to the defaults of 400 days etc and had grown
to around 700GB. Our operations DB is around 50GB in size. The disk at this point had around 50GB of space left.
Anyway I did some work on the retention in the DW to knock a lot of stuff down to say 9 months as needed. A week later and the data is now 500GB although the physical size is still 700GB.
Now I dont know if its coincidence but in the last couple of days I am getting performance alerts such as not being able to store data in the DW in a timely manner, failing to perform maintenace and visual indications that things have slowed down on the DW. For example an SLA report for the month for all servers now times out when before it ran in a few minutes.
So I am wondering if the "blank" space in the DW is now causing issues as there is data at both ends of the database perhaps. I would like to get this blank space back but no expert on SQL and wondering if any other considerations needs to be taken
for SCOM "to get this back".
I also understand that perhaps more disk space is required for the actual grooming so maybe I need to get down to 6 montghs of data before this can happen.
The performance part may not be tied to the issue but I guess either way I would like to get the space back if possible
thanks