(some times you need to so something special - like for a cluster)
for UNIX
all local drives is like - all file systems
/ (does not cross mount points so it does not backup stuff twice)
/var
/opt
/myfs
if you do multi streams you will get one job for each FS - if you do not do multi streams you will get 1 job ( you will see messages that /var is a separate fs skipping - that just means while it is backing up / it is skipping the mount points but will latter in the job pick up /var)
same for windows if multi stream you will get one job for each Drive like C E F G
if not multi stream you will get one job that gets them all
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time and beefiness of server is where you make your decision
small server might not be able to handle too many streams at once and may be small enough to only do 1 or 2 streams at a time
a big server may not finish in time if it only runs 1 job - it just might take too long so would need to run 2 or 3 streams at once.
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to make it easy
make a policy that does All Local Drives
set it to multi streams
any small servers that have problems running more than one stream at a time you can limit - by adding the server name to the master server attributes/client attributes/ and setting it to 1 or 2 streams only.
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it comes down your needs - getting the backup done within your window - so you have to play with it some.
some people believe in as few polices as possible - so one for windows, one for UNIX ...
some believe in 1 policy per server - you need to decide for yourself what is the best way YOU can manage it.
