sys.RUnlock()

	if tgt.Client != nil {
		return tgt.Client
	}
	defer func() { // lazy refresh remote targets
		if tgt.Client == nil && !sys.isReloadingTarget(bucket, arn) && (tgt.lastRefresh.Equal(timeSentinel) || tgt.lastRefresh.Before(UTCNow().Add(-5*time.Minute))) {
			tgts, err := globalBucketMetadataSys.GetBucketTargetsConfig(bucket)
			if err == nil {
				sys.markRefreshInProgress(bucket, arn)

			z.serverPools[i], err = newErasureSets(ctx, ep, storageDisks[i], formats[i], commonParityDrives, i)
		})
		if err != nil {
			return nil, err
		}

		if deploymentID != "" && bytes.Equal(z.deploymentID[:], []byte{}) {
			z.deploymentID = uuid.MustParse(deploymentID)
		}

		for _, storageDisk := range storageDisks[i] {
			if storageDisk != nil && storageDisk.IsLocal() {

		metadata[strings.ToLower(xhttp.ContentType)] = "binary/octet-stream"
	}

	// https://github.com/google/security-research/security/advisories/GHSA-76wf-9vgp-pj7w
	for k := range metadata {
		if equals(k, xhttp.AmzMetaUnencryptedContentLength, xhttp.AmzMetaUnencryptedContentMD5) {
			delete(metadata, k)
		}
	}

	if contentEncoding, ok := metadata[strings.ToLower(xhttp.ContentEncoding)]; ok {

	for k, v := range oi.UserDefined {
		if stringsHasPrefixFold(k, ReservedMetadataPrefixLower) {
			continue
		}

		if equals(k, xhttp.AmzBucketReplicationStatus) {
			continue
		}

		// https://github.com/google/security-research/security/advisories/GHSA-76wf-9vgp-pj7w
		if equals(k, xhttp.AmzMetaUnencryptedContentLength, xhttp.AmzMetaUnencryptedContentMD5) {
			continue
		}
		meta[k] = v
	}

			// values to client.
			toRemove = append(toRemove, k)
			continue
		}

		// https://github.com/google/security-research/security/advisories/GHSA-76wf-9vgp-pj7w
		if equals(k, xhttp.AmzMetaUnencryptedContentLength, xhttp.AmzMetaUnencryptedContentMD5) {
			toRemove = append(toRemove, k)
			continue
		}
	}

	for _, k := range toRemove {
		delete(m, k)

	}
	if !currDeploymentIDsSet.IsEmpty() {
		// If current cluster is already SR enabled and no new site being added ,fail.
		if currDeploymentIDsSet.Equals(deploymentIDsSet) {
			return madmin.ReplicateAddStatus{}, errSRCannotJoin
		}
		if len(currDeploymentIDsSet.Intersection(deploymentIDsSet)) != len(currDeploymentIDsSet) {

	expirationStr := fmt.Sprintf(`"expiration": "%s"`, expiration.Format(iso8601TimeFormat))
	// Add the bucket condition, only accept buckets equal to the one passed.
	bucketConditionStr := fmt.Sprintf(`["eq", "$bucket", "%s"]`, bucketName)
	// Add the key condition, only accept keys equal to the one passed.
	keyConditionStr := fmt.Sprintf(`["eq", "$key", "%s/upload.txt"]`, objectKey)

		// Secret key is different in credentials to compare.
		{cred, Credentials{AccessKey: cred.AccessKey, SecretKey: "mypassword"}, false},
	}

	for i, testCase := range testCases {
		result := testCase.cred.Equal(testCase.ccred)
		if result != testCase.expectedResult {
			t.Fatalf("test %v: expected: %v, got: %v", i+1, testCase.expectedResult, result)
		}
	}

				return errInvalidSSEParameters // AWS returns special error for equal but invalid keys.
			}
			return crypto.ErrInvalidCustomerKey // To provide strict AWS S3 compatibility we return: access denied.

		}
		if subtle.ConstantTimeCompare(oldKey, newKey) == 1 && sealedKey.Algorithm == crypto.SealAlgorithm {
			return nil // don't rotate on equal keys if seal algorithm is latest
		}

}

// Does all errors indicate we need to initialize all disks?.
func shouldInitErasureDisks(errs []error) bool {
	return countErrs(errs, errUnformattedDisk) == len(errs)
}

// Check if unformatted disks are equal to 50%+1 of all the drives.
func quorumUnformattedDisks(errs []error) bool {
	return countErrs(errs, errUnformattedDisk) >= (len(errs)/2)+1
}