minio/cmd/notification-summary.go
Anis Elleuch 8d98282afd
Better reporting of total/free usable capacity of the cluster (#15230)
The current code uses approximation using a ratio. The approximation 
can skew if we have multiple pools with different disk capacities.

Replace the algorithm with a simpler one which counts data 
disks and ignore parity disks.
2022-07-06 13:29:49 -07:00

68 lines
1.9 KiB
Go

// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package cmd
import (
"github.com/minio/madmin-go"
)
// GetTotalCapacity gets the total capacity in the cluster.
func GetTotalCapacity(diskInfo []madmin.Disk) (capacity uint64) {
for _, disk := range diskInfo {
capacity += disk.TotalSpace
}
return
}
// GetTotalUsableCapacity gets the total usable capacity in the cluster.
func GetTotalUsableCapacity(diskInfo []madmin.Disk, s StorageInfo) (capacity uint64) {
if globalIsGateway {
return 0
}
for _, disk := range diskInfo {
// Ignore parity disks
if disk.DiskIndex < s.Backend.StandardSCData[disk.PoolIndex] {
capacity += disk.TotalSpace
}
}
return
}
// GetTotalCapacityFree gets the total capacity free in the cluster.
func GetTotalCapacityFree(diskInfo []madmin.Disk) (capacity uint64) {
for _, d := range diskInfo {
capacity += d.AvailableSpace
}
return
}
// GetTotalUsableCapacityFree gets the total usable capacity free in the cluster.
func GetTotalUsableCapacityFree(diskInfo []madmin.Disk, s StorageInfo) (capacity uint64) {
if globalIsGateway {
return 0
}
for _, disk := range diskInfo {
// Ignore parity disks
if disk.DiskIndex < s.Backend.StandardSCData[disk.PoolIndex] {
capacity += disk.AvailableSpace
}
}
return
}