}

	vars := mux.Vars(r)
	v := vars["pool"]
	byID := vars["by-id"] == "true"

	pools := strings.Split(v, ",")
	poolIndices := make([]int, 0, len(pools))

	for _, pool := range pools {
		var idx int
		if byID {
			var err error
			idx, err = strconv.Atoi(pool)
			if err != nil {
				// We didn't find any matching pools, invalid input
				writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, errInvalidArgument), r.URL)

	}

	var nmeta1 poolMeta
	nmeta1.Version = poolMetaVersion
	nmeta1.Pools = append(nmeta1.Pools, meta.Pools...)
	for i, pool := range nmeta1.Pools {
		if i == 0 {
			nmeta1.Pools[i] = PoolStatus{
				CmdLine:    pool.CmdLine,
				ID:         i,
				LastUpdate: UTCNow(),
				Decommission: &PoolDecommissionInfo{
					Complete: true,
				},
			}
		}
	}

	var nmeta2 poolMeta
	nmeta2.Version = poolMetaVersion

type rebalanceAdminStatus struct {
	ID        string                // identifies the ongoing rebalance operation by a uuid
	Pools     []rebalancePoolStatus `json:"pools"` // contains all pools, including inactive
	StoppedAt time.Time             `json:"stoppedAt,omitempty"`
}

func rebalanceStatus(ctx context.Context, z *erasureServerPools) (r rebalanceAdminStatus, err error) {

		p.Pools[idx].LastUpdate = UTCNow()
		p.Pools[idx].Decommission.StartTime = time.Time{}
		p.Pools[idx].Decommission.Complete = false
		p.Pools[idx].Decommission.Failed = true
		p.Pools[idx].Decommission.Canceled = false
		return true
	}
	return false
}

func (p *poolMeta) DecommissionCancel(idx int) bool {
	if p.Pools[idx].Decommission != nil && !p.Pools[idx].Decommission.Canceled {

type ServerConfigV1 struct {
	ServerConfigVersion
	ServerConfigCommon
	Pools [][]string `yaml:"pools"`
}

// ServerConfig represents a MinIO configuration file
type ServerConfig struct {
	ServerConfigVersion
	ServerConfigCommon
	Pools []struct {
		Args          []string `yaml:"args"`
		SetDriveCount uint64   `yaml:"set-drive-count"`
	} `yaml:"pools"`

version: v1
address: ':9000'
console-address: ':9001'
certs-dir: '/home/user/.minio/certs/'
pools: # Specify the nodes and drives with pools
  -
        - 'https://server-example-pool1:9000/mnt/disk{1...4}/'
        - 'https://server1-pool1:9000/mnt/disk{1...4}/'
        - 'https://server3-pool1:9000/mnt/disk{1...4}/'
        - 'https://server4-pool1:9000/mnt/disk{1...4}/'
  -
        - 'https://server-example-pool2:9000/mnt/disk{1...4}/'

    address: ":8022"
    ssh-private-key: "/home/user/.ssh/id_rsa"
```

If you are using the config `v1` YAML you should migrate your `pools:` field values to the following format

`v1` format
```yaml
pools: # Specify the nodes and drives with pools
  -
    - "https://server-example-pool1:9000/mnt/disk{1...4}/"
    - "https://server{1...2}-pool1:9000/mnt/disk{1...4}/"

	GetPools() []int
}

type localPeerS3Client struct {
	node  Node
	pools []int
}

func (l *localPeerS3Client) GetHost() string {
	return l.node.Host
}

func (l *localPeerS3Client) SetPools(p []int) {
	l.pools = make([]int, len(p))
	copy(l.pools, p)
}

func (l localPeerS3Client) GetPools() []int {
	return l.pools
}

version:
address: ':9000'
console-address: ':9001'
certs-dir: '/home/user/.minio/certs/'
pools: # Specify the nodes and drives with pools
  -
        - 'https://server-example-pool1:9000/mnt/disk{1...4}/'
        - 'https://server1-pool1:9000/mnt/disk{1...4}/'
        - 'https://server3-pool1:9000/mnt/disk{1...4}/'
        - 'https://server4-pool1:9000/mnt/disk{1...4}/'
  -
        - 'https://server-example-pool2:9000/mnt/disk{1...4}/'

				t.Error("expected success, got failure", err)
			}
			if err == nil {
				if len(sctx.Layout.pools) != 2 {
					t.Error("expected parsed pools to be 2, not", len(sctx.Layout.pools))
				}
				if sctx.Layout.pools[0].cmdline != testcase.hash {
					t.Error("expected hash", testcase.hash, "got", sctx.Layout.pools[0].cmdline)
				}
			}
		})
	}
}

// Tests initializing new object layer.