Basic History 800xA 6.0 - What is the max entries per second
We have 800xA 6.01.
I was wondering does anyone know the limit of Basic History to store logs entries in the connectivity server. For example in the Information Manager documentation it states 30,000 entries per minute, which equates to 500 1 second logs.
Is there such a limit on 800xA 6.0 for connectivity server basic history?
The manual "System Guide Technical Data and Configuration" for version 5.1 states something like average storage rate 250/sec, for combined AS+CS (see attached).
But the equivalent manual for version 6.0 does not mention any limits at all for basic history. Does this mean version 800xA 6.0 has no limits? Or are the limits mentioned in another manual?
By the way we have a combined AS+CS and about 1700 logs.
Thanks for you help
One of the very few disadvantages with Basic History is its relatively unknown limitations.
System Guide list 10.000 primary logs but fail to tell number of secondary (aggregated) logs and storage parameters like points per second.
With a fast disk I believe Basic History will be comparable with IM. For high performance I recommend using a dedicated storage partition, other than C:\ - the performance is also affected by RAID cache size and number of concurrent users of the disk. VMware makes it easier to deploy operating systems, but it is also "easy" to trust all virtual machines of a host with just one common storage path/device (which obviously is less powerful than if each virtual machine had a dedicated, not shared one).
By me personally recommended maxs:
- do not configure more than a couple or so of secondary logs per primary
- stay on the lower half of two digit GB range in total storage size
- Basic History "sync" is slow/weak; consider manual file copy across while service is stopped if fast full sync is desired.
- avoid using deadband/exception deviation to increase storage period