wg.Add(len(z.serverPools))
		for idx, pool := range z.serverPools {
			go func(idx int, pool *erasureSets) {
				defer wg.Done()
				objs := poolObjIdxMap[idx]
				if len(objs) > 0 {
					orgIndexes := origIndexMap[idx]
					deletedObjects, errs := pool.DeleteObjects(ctx, bucket, objs, opts)
					mu.Lock()
					for i, derr := range errs {
						if derr != nil {
							derrs[orgIndexes[i]] = derr
						}