import (
"context"
"crypto/rand"
+ "fmt"
"io"
"math/big"
"sync/atomic"
// EmptyTrash looks for trashed blocks that exceeded TrashLifetime
// and deletes them from the volume.
EmptyTrash()
+
+ // Return a globally unique ID of the underlying storage
+ // device if possible, otherwise "".
+ DeviceID() string
}
// A VolumeWithExamples provides example configs to display in the
if err != nil {
panic(err)
}
- return "zzzzz-ivpuk-" + r.Text(36)
+ return fmt.Sprintf("zzzzz-ivpuk-%015s", r.Text(36))
}
// RRVolumeManager is a round-robin VolumeManager: the Nth call to
for _, v := range volumes {
mnt := &VolumeMount{
UUID: (*VolumeMount)(nil).generateUUID(),
- DeviceID: "",
+ DeviceID: v.DeviceID(),
ReadOnly: !v.Writable(),
Replication: v.Replication(),
Tier: 1,
volume: v,
}
- if v, ok := v.(interface {
- DeviceID() string
- }); ok {
- mnt.DeviceID = v.DeviceID()
- }
vm.iostats[v] = &ioStats{}
vm.mounts = append(vm.mounts, mnt)
vm.mountMap[mnt.UUID] = mnt