>Database CRUD: before 35s, after 4s
>Save 1MB Excel file: before: 20s(!), after: 0.5s
Of course, it is always recommended to use BBU, but what are the main benefits of installing BBU into the system, the system has redundant power supply and is connected to UPS? Does it depend on the type of system (database, file, terminal)?
What are the realistic failure scenarios that can be prevented by BBU?
Thanks in advance!
> Establish power failure (dual UPS is not a big problem)
> PSU failure (not a big problem with dual PS)
>Utilities failure (do you have a generator? What happens when the UPS runs smoothly?)< br>>Generator failure (I have seen these situations; again: what happens when the UPS runs smoothly?)
>The circuit breaker trips (single, if you only have one power leg; double the possibility)
>Fat foot tripped your power cord
>”Oh, I pulled the wrong circuit breaker!”
>”Oh, put my screwdriver on the power bus!”
< p>Wait
You can be sure of the possibilities of these in your environment. I have seen each of them in production scenarios, so they are all possible 🙂
Today, I roughly measured the benefits of enabling write-back on the RAID controller on the server at work. It does not have a RAID battery backup unit (BBU), so it is currently disabled Write cache. Since the server is not used to capacity (so far), most of the test results are spectacular, for example:
>Database CRUD: before 35s, after 4s
>Save 1MB Excel file: before: 20s(!), after: 0.5s
Of course, it is always recommended to use BBU, but what are the main benefits of installing BBU into the system? The system has redundant power supply and Connect to UPS? Does it depend on the type of system (database, file, terminal)?
What are the realistic failure scenarios that can be prevented by BBU?
Thanks in advance!
The RAID backup battery can protect you from:
>Establishing a power failure (dual UPS is not a big problem)< br>> PSU failure (not a big problem with dual PS)
>Utilities failure (Do you have a generator? What happens when the UPS runs smoothly?)
>Generator failure (I have seen these Situation; again: what happens when the UPS runs smoothly?)
>The circuit breaker trips (single, if you only have one power leg; double the possibility)
>Fat foot trips your power cord
>”Oh, I pulled the wrong circuit breaker!”
>”Oh, put my screwdriver on the power bus!”
Wait
These The possibilities in your environment are something you can be sure of. I have seen each of them in production scenarios, so they are all possible:)