{"9223372036854775807B", 1<<63 - 1, true},

		// Good binary suffix inputs.
		{"1KiB", 1 << 10, true},
		{"05KiB", 5 << 10, true},
		{"1MiB", 1 << 20, true},
		{"10MiB", 10 << 20, true},
		{"1GiB", 1 << 30, true},
		{"100GiB", 100 << 30, true},
		{"1TiB", 1 << 40, true},
		{"99TiB", 99 << 40, true},

		// Good zero inputs.
		//
		// -0 is an edge case, but no harm in supporting it.

	object = encodeDirObject(object)
	if z.SinglePool() {
		return z.serverPools[0].PutObjectMetadata(ctx, bucket, object, opts)
	}

	opts.MetadataChg = true
	// We don't know the size here set 1GiB at least.
	idx, err := z.getPoolIdxExistingWithOpts(ctx, bucket, object, opts)
	if err != nil {
		return ObjectInfo{}, err
	}

	return z.serverPools[idx].PutObjectMetadata(ctx, bucket, object, opts)
}