Data Backup and Recovery Discussions
I'm currently creating a design for a very large sharepoint environment.
There seems to be very little documentation for large designs.
I know already this :
But for the content db's, it becomes more complicated :
The limit is 200GB, including blobs (regardless if they are remote or local)
Assume were are using Remote Blobs (RBS)
Assume the metadata/blob ratio = 20% / 80%
=> content db's can only be 40GB (with 160GB blobs)
Assume I have to size a 20TB sharepoint , I would have 4TB databases and 16TB blobs.
The 4 TB databases would be split up in 100 x 40GB content databases. (lun 6 - lun 105 | vol 5 - vol 104)
Asume 25% logs => 100 x 10GB logs (lun 106 - 205 | vol 105 - vol 204)
If I put each 40GB content database in its own lun within its own volume and I do the same for the logs, I would create 200 volumes.
If I was to have this environment in acceptance & in production, this is 400 volumes, coming very close to the 500 volume limit.
What would be the recommendation ? place multiple luns in 1 volume ? Or place multiple db's in 1 lun ?
What about the 16TB cifs share for the blobs ? Will this become a large file count issue ?
Thanks for any help.
I will answer my own question, for future readers :
Don't put multiple large databases in one lun => restore will be a streamed copy restore
It's no problem to put multiple lun in one volume => as long as they have the same snapshot and snapvault schedule.
Fast lun restore is still possible using the lun clone split method.
So for my design : I'll put all content database luns from 1 farm in one volume, as they have the same backup schedule.
I'll do the same for the log files.