proxy.process.cache.stripes counts exclusive span twice

[masaori335]

If I have 6 disks and 1 ram disk in the storage.config and 2 volumes in volums.config like below, the proxy.process.cache.stripes says it's 14. Is it counted twice?

• storage.config

/dev/disk/by-path/A volume=1
/dev/disk/by-path/B volume=1
/dev/disk/by-path/C volume=1
/dev/disk/by-path/D volume=1
/dev/disk/by-path/E volume=1
/dev/disk/by-path/F volume=1

/dev/ram0 volume=2

• volume.config

volume=1 scheme=http size=100%
volume=2 scheme=http size=10485760000

$ traffic_ctl metric match stripe
proxy.process.cache.stripes 14
proxy.process.cache.volume_1.stripes 6
proxy.process.cache.volume_2.stripes 1