How to write forumula in zabbix?

Question

Zabbix

You need to write a formula that sums up two parameters (the number of write operations and read operations), the formula:
last("perf_counter_en["\PhysicalDisk({#DEVNAME})\Disk Writes/sec",60]]")+last("perf_counter_en ["\PhysicalDisk({#DEVNAME})\Disk Reads/sec",60]") gives an error -

Invalid parameter "/1/params": incorrect calculated item formula starting from "last("
perf_counter_en["\PhysicalDisk({ #DEVNAME})\Disk Writes/sec",60]]")+last("perf_counter_en["\PhysicalDisk({#DEVNAME})\Disk Reads/sec",60]")".

The items themselves are taken from the standard windows template.

Most likely the wrong syntax, but still.

Answer 1

I ate like this (5.0):
last("perf_counter_en[\"\PhysicalDisk(0 C:)\Disk Writes/sec\",60]")+last("perf_counter_en[\"\PhysicalDisk(0 C :)\Disk Reads/sec\",60]"
) I escaped the inner quotes with backslash \ eat.