``` mc admin config set alias/ storage_class standard=EC:3 ``` should only succeed if parity ratio is valid for all server pools, if not we should fail proactively. This PR also needs to bring other changes now that we need to cater for variadic drive counts per pool. Bonus fixes also various bugs reproduced with - GetObjectWithPartNumber() - CopyObjectPartWithOffsets() - CopyObjectWithMetadata() - PutObjectPart,PutObject with truncated streams
69 lines
2.2 KiB
Go
69 lines
2.2 KiB
Go
/*
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* MinIO Cloud Storage, (C) 2020 MinIO, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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package cmd
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import (
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"context"
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)
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// GetTotalCapacity gets the total capacity in the cluster.
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func GetTotalCapacity(ctx context.Context) (capacity uint64) {
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d := globalNotificationSys.DiskHwInfo(ctx)
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for _, s := range d {
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capacity += s.GetTotalCapacity()
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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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// This value is not an accurate representation of total usable in a multi-tenant deployment.
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func GetTotalUsableCapacity(ctx context.Context, s StorageInfo) (capacity float64) {
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raw := GetTotalCapacity(ctx)
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var approxDataBlocks float64
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var actualDisks float64
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for _, scData := range s.Backend.StandardSCData {
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approxDataBlocks += float64(scData)
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actualDisks += float64(scData + s.Backend.StandardSCParity)
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}
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ratio := approxDataBlocks / actualDisks
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return float64(raw) * ratio
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}
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// GetTotalCapacityFree gets the total capacity free in the cluster.
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func GetTotalCapacityFree(ctx context.Context) (capacity uint64) {
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d := globalNotificationSys.DiskHwInfo(ctx)
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for _, s := range d {
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capacity += s.GetTotalFreeCapacity()
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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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// This value is not an accurate representation of total free in a multi-tenant deployment.
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func GetTotalUsableCapacityFree(ctx context.Context, s StorageInfo) (capacity float64) {
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raw := GetTotalCapacityFree(ctx)
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var approxDataBlocks float64
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var actualDisks float64
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for _, scData := range s.Backend.StandardSCData {
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approxDataBlocks += float64(scData)
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actualDisks += float64(scData + s.Backend.StandardSCParity)
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}
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ratio := approxDataBlocks / actualDisks
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return float64(raw) * ratio
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}
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