if zinfo == nil {
			serverPools[i] = poolAvailableSpace{Index: i}
			continue
		}
		var available uint64
		if !isMinioMetaBucketName(bucket) {
			if avail, err := hasSpaceFor(zinfo, size); err != nil || !avail {
				serverPools[i] = poolAvailableSpace{Index: i}
				continue
			}
		}
		var maxUsedPct int
		for _, disk := range zinfo {
			if disk == nil || disk.Total == 0 {
				continue

	vsize := v + size
	for voff := v; voff < vsize; voff = voff + chunkBytes {
		if getg().preempt {
			// may hold locks, e.g., profiling
			goschedguarded()
		}
		// clear min(avail, lump) bytes
		n := vsize - voff
		if n > chunkBytes {
			n = chunkBytes
		}
		memclrNoHeapPointers(unsafe.Pointer(voff), n)
	}
}

// implementation of new builtin