`MINIO_STORAGE_CLASS_STANDARD: Format "EC:<Default_Parity_Standard_Class>" (e.g. "EC:3"). This sets the number of parity drives for MinIO server in Standard mode. Objects are stored in Standard mode, if storage class is not defined in Put request

Refer to sizing guide for more understanding on default values chosen depending on your erasure stripe size [here](https://github.com/minio/minio/blob/master/docs/distributed/SIZING.md). Parity settings can be changed using [storage classes](https://github.com/minio/minio/tree/master/docs/erasure/storage-class).

### Consistency Guarantees

	tests := []struct {
		name   int
		data   int
		parity int
		want   bool
	}{
		{1, 5, 6, false},
		{2, 5, 5, true},
		{3, 0, 5, false},
		{3, -1, 5, false},
		{4, 5, -1, false},
		{5, 5, 0, true},
		{6, 5, 0, true},
		{7, 5, 4, true},
	}
	for _, tt := range tests {
		if got := isXLMetaErasureInfoValid(tt.data, tt.parity); got != tt.want {

		if n == 0 && total != 0 {
			// Reached EOF, nothing more to be done.
			break
		}

		// We take care of the situation where if n == 0 and total == 0 by creating empty data and parity files.
		blocks, err = e.EncodeData(ctx, buf[:n])
		if err != nil {
			return 0, err
		}

		if err = writer.Write(ctx, blocks); err != nil {
			return 0, err
		}

		total += int64(n)
		if eof {

	}
}

// Benchmarks

func benchmarkErasureDecode(data, parity, dataDown, parityDown int, size int64, b *testing.B) {
	setup, err := newErasureTestSetup(b, data, parity, blockSizeV2)
	if err != nil {
		b.Fatalf("failed to create test setup: %v", err)
	}
	disks := setup.disks
	erasure, err := NewErasure(context.Background(), data, parity, blockSizeV2)
	if err != nil {

	formatErasureVersionV2DistributionAlgoV1 = "CRCMOD"

	// Distributed algorithm used, with N/2 default parity
	formatErasureVersionV3DistributionAlgoV2 = "SIPMOD"

	// Distributed algorithm used, with EC:4 default parity
	formatErasureVersionV3DistributionAlgoV3 = "SIPMOD+PARITY"
)

// Offline disk UUID represents an offline disk.
const offlineDiskUUID = "ffffffff-ffff-ffff-ffff-ffffffffffff"

            throw new CIFSUnsupportedCryptoException(e);
        }
    }

    /**
     * @param key
     *            7-byte "raw" DES key
     * @return 8-byte DES key with parity
     */
    static byte[] des7to8(final byte[] key) {
        final byte key8[] = new byte[8];
        key8[0] = (byte) (key[0] & 0xFE);
        key8[1] = (byte) (key[0] << 7 | (key[1] & 0xFF) >>> 1);

	storageDisks := er.getDisks()
	// Get parity and data drive count based on storage class metadata
	parityDrives := globalStorageClass.GetParityForSC(opts.UserDefined[xhttp.AmzStorageClass])
	if parityDrives < 0 {
		parityDrives = er.defaultParityCount
	}
	dataDrives := len(storageDisks) - parityDrives

	// we now know the number of blocks this object needs for data and parity.
	// writeQuorum is dataBlocks + 1

f85-8dbc-131ff6028438","7c7dcc16-6c0d-4513-93c7-2ca3d2ca348a","dd9393ca-9dc4-40b2-a7e9-455522822d90","7c61eb5a-cbaa-4d45-b714-cf5b4cc82ef5","954b6edf-3e12-4f4b-8c4c-2b3014cbdfdb","0f37d8dc-aaa3-4113-89b0-0a2f4af8362c"]],"distributionAlgo":"SIPMOD+PARITY"}} multisitea/data/disterasure/xl3/.minio.sys/tmp/db01c92f-8f6d-438b-9f66-b105934f7c72 multisitea/data/disterasure/xl3/.minio.sys/tmp/.trash/.writable-check-635c94a5-cd73-4863-8db3-e84ca708dfc1.tmp multisitea/data/disterasure/xl3/.minio.sys/tmp/....

		// If storage class is not set during startup, default values are used
		// -- Default for Reduced Redundancy Storage class is, parity = 2
		// -- Default for Standard Storage class is, parity = 2 - disks 4, 5
		// -- Default for Standard Storage class is, parity = 3 - disks 6, 7
		// -- Default for Standard Storage class is, parity = 4 - disks 8 to 16
		if commonParityDrives == 0 {
			commonParityDrives, err = ecDrivesNoConfig(ep.DrivesPerSet)