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8d98282afd
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.
68 lines
1.9 KiB
Go
68 lines
1.9 KiB
Go
// Copyright (c) 2015-2021 MinIO, Inc.
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//
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// This file is part of MinIO Object Storage stack
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package cmd
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import (
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"github.com/minio/madmin-go"
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)
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// GetTotalCapacity gets the total capacity in the cluster.
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func GetTotalCapacity(diskInfo []madmin.Disk) (capacity uint64) {
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for _, disk := range diskInfo {
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capacity += disk.TotalSpace
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}
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return
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}
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// GetTotalUsableCapacity gets the total usable capacity in the cluster.
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func GetTotalUsableCapacity(diskInfo []madmin.Disk, s StorageInfo) (capacity uint64) {
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if globalIsGateway {
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return 0
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}
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for _, disk := range diskInfo {
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// Ignore parity disks
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if disk.DiskIndex < s.Backend.StandardSCData[disk.PoolIndex] {
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capacity += disk.TotalSpace
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}
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}
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return
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}
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// GetTotalCapacityFree gets the total capacity free in the cluster.
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func GetTotalCapacityFree(diskInfo []madmin.Disk) (capacity uint64) {
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for _, d := range diskInfo {
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capacity += d.AvailableSpace
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}
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return
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}
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// GetTotalUsableCapacityFree gets the total usable capacity free in the cluster.
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func GetTotalUsableCapacityFree(diskInfo []madmin.Disk, s StorageInfo) (capacity uint64) {
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if globalIsGateway {
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return 0
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}
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for _, disk := range diskInfo {
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// Ignore parity disks
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if disk.DiskIndex < s.Backend.StandardSCData[disk.PoolIndex] {
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capacity += disk.AvailableSpace
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}
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}
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return
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}
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