err = msgp.WrapError(err, "DiskID")
		return
	}
	// write "v"
	err = en.Append(0xa1, 0x76)
	if err != nil {
		return
	}
	err = en.WriteString(z.Volume)
	if err != nil {
		err = msgp.WrapError(err, "Volume")
		return
	}
	// write "ov"
	err = en.Append(0xa2, 0x6f, 0x76)
	if err != nil {
		return
	}
	err = en.WriteString(z.OrigVolume)
	if err != nil {

			return
		}
		err = en.WriteUint64(za0002.TotalSize)
		if err != nil {
			err = msgp.WrapError(err, "Tiers", za0001, "TotalSize")
			return
		}
		// write "nv"
		err = en.Append(0xa2, 0x6e, 0x76)
		if err != nil {
			return
		}
		err = en.WriteInt(za0002.NumVersions)
		if err != nil {
			err = msgp.WrapError(err, "Tiers", za0001, "NumVersions")
			return
		}
		// write "no"

	if err != nil {
		return
	}
	err = en.WriteString(z.Version)
	if err != nil {
		err = msgp.WrapError(err, "Version")
		return
	}
	// write "Format"
	err = en.Append(0xa6, 0x46, 0x6f, 0x72, 0x6d, 0x61, 0x74)
	if err != nil {
		return
	}
	err = en.WriteString(z.Format)
	if err != nil {
		err = msgp.WrapError(err, "Format")
		return
	}
	// write "Stat"

			}
		} else {
			err = z.DeleteMarker.EncodeMsg(en)
			if err != nil {
				err = msgp.WrapError(err, "DeleteMarker")
				return
			}
		}
	}
	// write "v"
	err = en.Append(0xa1, 0x76)
	if err != nil {
		return
	}
	err = en.WriteUint64(z.WrittenByVersion)
	if err != nil {
		err = msgp.WrapError(err, "WrittenByVersion")
		return
	}
	return
}