case size < fi.Erasure.BlockSize:
		// No need to allocate fully fi.Erasure.BlockSize buffer if the incoming data is smaller.
		buffer = make([]byte, size, 2*size+int64(fi.Erasure.ParityBlocks+fi.Erasure.DataBlocks-1))
	}

	if len(buffer) > int(fi.Erasure.BlockSize) {
		buffer = buffer[:fi.Erasure.BlockSize]
	}
	writers := make([]io.Writer, len(onlineDisks))
	for i, disk := range onlineDisks {
		if disk == nil {

erasure-code.jpg...

- Online volume expansion (ExpandInUsePersistentVolumes) is now a beta feature. As such, it is enabled by default. ([#77755](https://github.com/kubernetes/kubernetes/pull/77755), [@gnufied](https://github.com/gnufied))

	formatV2.Format = formatBackendErasure
	formatV2.Erasure.Version = formatErasureVersionV2
	formatV2.Erasure.DistributionAlgo = formatErasureVersionV2DistributionAlgoV1
	formatV2.Erasure.This = formatV1.Erasure.Disk
	formatV2.Erasure.Sets = make([][]string, 1)
	formatV2.Erasure.Sets[0] = make([]string, len(formatV1.Erasure.JBOD))
	copy(formatV2.Erasure.Sets[0], formatV1.Erasure.JBOD)

	return json.Marshal(formatV2)
}

erasure-code.png...

	if fi.IsLatest {
		rs.NumObjects++
	}

	rs.NumVersions++
	onDiskSz := int64(0)
	if !fi.Deleted {
		onDiskSz = fi.Size * int64(fi.Erasure.DataBlocks+fi.Erasure.ParityBlocks) / int64(fi.Erasure.DataBlocks)
	}
	rs.Bytes += uint64(onDiskSz)
	rs.Bucket = bucket
	rs.Object = fi.Name
}

type rstats []*rebalanceStats

			writers[i] = newBitrotWriter(disk, "", "testbucket", "object", erasure.ShardFileSize(test.data), writeAlgorithm, erasure.ShardSize())
		}
		n, err := erasure.Encode(context.Background(), bytes.NewReader(data), writers, buffer, erasure.dataBlocks+1)
		closeBitrotWriters(writers)
		if err != nil {
			t.Fatalf("Test %d: failed to create erasure test file: %v", i, err)
		}
		if n != test.data {

		writers := make([]io.Writer, len(disks))
		for i, disk := range disks {
			writers[i] = newBitrotWriter(disk, "", "testbucket", "testobject", erasure.ShardFileSize(test.size), test.algorithm, erasure.ShardSize())
		}
		_, err = erasure.Encode(context.Background(), bytes.NewReader(data), writers, buffer, erasure.dataBlocks+1)
		closeBitrotWriters(writers)
		if err != nil {
			t.Fatalf("Test %d: failed to create random test data: %v", i, err)
		}

		fi.Size = 1 << 20
		metaArr := make([]FileInfo, N)
		parities := make([]int, N)
		for i := range N {
			fi.Erasure.Index = i + 1
			metaArr[i] = fi
			parities[i] = parity
			if i < agree {
				continue
			}
			metaArr[i].Erasure.Index = 0 // creates invalid fi on remaining drives
			parities[i] = -1             // invalid fi are assigned parity -1
		}
		res.metaArr = metaArr

			if disk == OfflineDisk {
				continue
			}
			writers[i] = newBitrotWriter(disk, "", "testbucket", "object", erasure.ShardFileSize(int64(len(data[test.offset:]))), test.algorithm, erasure.ShardSize())
		}
		n, err := erasure.Encode(context.Background(), bytes.NewReader(data[test.offset:]), writers, buffer, erasure.dataBlocks+1)
		closeBitrotWriters(writers)
		if err != nil && !test.shouldFail {