defer store.unlock()

	// Handle policy mapping removal.
	if policy == "" {
		if store.getUsersSysType() == LDAPUsersSysType {
			// Add a fallback removal towards previous content that may come back
			// as a ghost user due to lack of delete, this change occurred
			// introduced in PR #11840
			store.deleteMappedPolicy(ctx, name, regUser, false)
		}

		// Verify if the dataDir is present or not when the data
		// is not inlined to make sure we return correct errors
		// during HeadObject().

		// Healing must not come here and return error, since healing
		// deals with dataDirs directly, let healing fix things automatically.
		if lerr := Access(pathJoin(volumeDir, path, fi.DataDir)); lerr != nil {
			if os.IsNotExist(lerr) {

	total := serverPools.TotalAvailable()
	if total == 0 {
		return -1
	}
	// choose when we reach this many
	choose := rand.Uint64() % total
	atTotal := uint64(0)
	for _, pool := range serverPools {
		atTotal += pool.Available
		if atTotal > choose && pool.Available > 0 {
			return pool.Index
		}
	}
	// Should not happen, but print values just in case.