Given volfile:
+------------------------------------------------------------------------------+
  1: volume pfs-ro1-client-0
  2:     type protocol/client
  3:     option remote-host jc1letgfs17-pfs1
  4:     option remote-subvolume /export/read-only/g01
  5:     option transport-type tcp
  6:     option ping-timeout 10
  7: end-volume
  8:
  9: volume pfs-ro1-client-1
 10:     type protocol/client
 11:     option remote-host jc1letgfs18-pfs1
 12:     option remote-subvolume /export/read-only/g01
 13:     option transport-type tcp
 14:     option ping-timeout 10
 15: end-volume
 16:
 17: volume pfs-ro1-client-2
 18:     type protocol/client
 19:     option remote-host jc1letgfs17-pfs1
 20:     option remote-subvolume /export/read-only/g02
 21:     option transport-type tcp
 22:     option ping-timeout 10
 23: end-volume
 24:
 25: volume pfs-ro1-client-3
 26:     type protocol/client
 27:     option remote-host jc1letgfs18-pfs1
 28:     option remote-subvolume /export/read-only/g02
 29:     option transport-type tcp
 30:     option ping-timeout 10
 31: end-volume
 32:
 33: volume pfs-ro1-client-4
 34:     type protocol/client
 35:     option remote-host jc1letgfs17-pfs1
 36:     option remote-subvolume /export/read-only/g03
 37:     option transport-type tcp
 38:     option ping-timeout 10
 39: end-volume
 40:
 41: volume pfs-ro1-client-5
 42:     type protocol/client
 43:     option remote-host jc1letgfs18-pfs1
 44:     option remote-subvolume /export/read-only/g03
 45:     option transport-type tcp
 46:     option ping-timeout 10
 47: end-volume
 48:
 49: volume pfs-ro1-client-6
 50:     type protocol/client
 51:     option remote-host jc1letgfs17-pfs1
 52:     option remote-subvolume /export/read-only/g04
 53:     option transport-type tcp
 54:     option ping-timeout 10
 55: end-volume
 56:
 57: volume pfs-ro1-client-7
 58:     type protocol/client
 59:     option remote-host jc1letgfs18-pfs1
 60:     option remote-subvolume /export/read-only/g04
 61:     option transport-type tcp
 62:     option ping-timeout 10
 63: end-volume
 64:
 65: volume pfs-ro1-client-8
 66:     type protocol/client
 67:     option remote-host jc1letgfs17-pfs1
 68:     option remote-subvolume /export/read-only/g05
 69:     option transport-type tcp
 70:     option ping-timeout 10
 71: end-volume
 72:
 73: volume pfs-ro1-client-9
 74:     type protocol/client
 75:     option remote-host jc1letgfs18-pfs1
 76:     option remote-subvolume /export/read-only/g05
 77:     option transport-type tcp
 78:     option ping-timeout 10
 79: end-volume
 80:
 81: volume pfs-ro1-client-10
 82:     type protocol/client
 83:     option remote-host jc1letgfs17-pfs1
 84:     option remote-subvolume /export/read-only/g06
 85:     option transport-type tcp
 86:     option ping-timeout 10
 87: end-volume
 88:
 89: volume pfs-ro1-client-11
 90:     type protocol/client
 91:     option remote-host jc1letgfs18-pfs1
 92:     option remote-subvolume /export/read-only/g06
 93:     option transport-type tcp
 94:     option ping-timeout 10
 95: end-volume
 96:
 97: volume pfs-ro1-client-12
 98:     type protocol/client
 99:     option remote-host jc1letgfs17-pfs1
100:     option remote-subvolume /export/read-only/g07
101:     option transport-type tcp
102:     option ping-timeout 10
103: end-volume
104:
105: volume pfs-ro1-client-13
106:     type protocol/client
107:     option remote-host jc1letgfs18-pfs1
108:     option remote-subvolume /export/read-only/g07
109:     option transport-type tcp
110:     option ping-timeout 10
111: end-volume
112:
113: volume pfs-ro1-client-14
114:     type protocol/client
115:     option remote-host jc1letgfs17-pfs1
116:     option remote-subvolume /export/read-only/g08
117:     option transport-type tcp
118:     option ping-timeout 10
119: end-volume
121: volume pfs-ro1-client-15
122:     type protocol/client
123:     option remote-host jc1letgfs18-pfs1
124:     option remote-subvolume /export/read-only/g08
125:     option transport-type tcp
126:     option ping-timeout 10
127: end-volume
128:
129: volume pfs-ro1-client-16
130:     type protocol/client
131:     option remote-host jc1letgfs17-pfs1
132:     option remote-subvolume /export/read-only/g09
133:     option transport-type tcp
134:     option ping-timeout 10
135: end-volume
136:
137: volume pfs-ro1-client-17
138:     type protocol/client
139:     option remote-host jc1letgfs18-pfs1
140:     option remote-subvolume /export/read-only/g09
141:     option transport-type tcp
142:     option ping-timeout 10
143: end-volume
144:
145: volume pfs-ro1-client-18
146:     type protocol/client
147:     option remote-host jc1letgfs17-pfs1
148:     option remote-subvolume /export/read-only/g10
149:     option transport-type tcp
150:     option ping-timeout 10
151: end-volume
152:
153: volume pfs-ro1-client-19
154:     type protocol/client
155:     option remote-host jc1letgfs18-pfs1
156:     option remote-subvolume /export/read-only/g10
157:     option transport-type tcp
158:     option ping-timeout 10
159: end-volume
160:
161: volume pfs-ro1-client-20
162:     type protocol/client
163:     option remote-host jc1letgfs14-pfs1
164:     option remote-subvolume /export/read-only/g01
165:     option transport-type tcp
166:     option ping-timeout 10
167: end-volume
168:
169: volume pfs-ro1-client-21
170:     type protocol/client
171:     option remote-host jc1letgfs15-pfs1
172:     option remote-subvolume /export/read-only/g01
173:     option transport-type tcp
174:     option ping-timeout 10
175: end-volume
176:
177: volume pfs-ro1-client-22
178:     type protocol/client
179:     option remote-host jc1letgfs14-pfs1
180:     option remote-subvolume /export/read-only/g02
181:     option transport-type tcp
182:     option ping-timeout 10
183: end-volume
184:
185: volume pfs-ro1-client-23
186:     type protocol/client
187:     option remote-host jc1letgfs15-pfs1
188:     option remote-subvolume /export/read-only/g02
189:     option transport-type tcp
190:     option ping-timeout 10
191: end-volume
192:
193: volume pfs-ro1-client-24
194:     type protocol/client
195:     option remote-host jc1letgfs14-pfs1
196:     option remote-subvolume /export/read-only/g03
197:     option transport-type tcp
198:     option ping-timeout 10
199: end-volume
200:
201: volume pfs-ro1-client-25
202:     type protocol/client
203:     option remote-host jc1letgfs15-pfs1
204:     option remote-subvolume /export/read-only/g03
205:     option transport-type tcp
206:     option ping-timeout 10
207: end-volume
208:
209: volume pfs-ro1-client-26
210:     type protocol/client
211:     option remote-host jc1letgfs14-pfs1
212:     option remote-subvolume /export/read-only/g04
213:     option transport-type tcp
214:     option ping-timeout 10
215: end-volume
216:
217: volume pfs-ro1-client-27
218:     type protocol/client
219:     option remote-host jc1letgfs15-pfs1
220:     option remote-subvolume /export/read-only/g04
221:     option transport-type tcp
222:     option ping-timeout 10
223: end-volume
224:
225: volume pfs-ro1-client-28
226:     type protocol/client
227:     option remote-host jc1letgfs14-pfs1
228:     option remote-subvolume /export/read-only/g05
229:     option transport-type tcp
230:     option ping-timeout 10
231: end-volume
232:
233: volume pfs-ro1-client-29
234:     type protocol/client
235:     option remote-host jc1letgfs15-pfs1
236:     option remote-subvolume /export/read-only/g05
237:     option transport-type tcp
238:     option ping-timeout 10
239: end-volume
240:
241: volume pfs-ro1-client-30
242:     type protocol/client
243:     option remote-host jc1letgfs14-pfs1
244:     option remote-subvolume /export/read-only/g06
245:     option transport-type tcp
246:     option ping-timeout 10
247: end-volume
248:
249: volume pfs-ro1-client-31
250:     type protocol/client
251:     option remote-host jc1letgfs15-pfs1
252:     option remote-subvolume /export/read-only/g06
253:     option transport-type tcp
254:     option ping-timeout 10
255: end-volume
256:
257: volume pfs-ro1-client-32
258:     type protocol/client
259:     option remote-host jc1letgfs14-pfs1
260:     option remote-subvolume /export/read-only/g07
261:     option transport-type tcp
262:     option ping-timeout 10
263: end-volume
264:
265: volume pfs-ro1-client-33
266:     type protocol/client
267:     option remote-host jc1letgfs15-pfs1
268:     option remote-subvolume /export/read-only/g07
269:     option transport-type tcp
270:     option ping-timeout 10
271: end-volume
272:
273: volume pfs-ro1-client-34
274:     type protocol/client
275:     option remote-host jc1letgfs14-pfs1
276:     option remote-subvolume /export/read-only/g08
277:     option transport-type tcp
278:     option ping-timeout 10
279: end-volume
280:
281: volume pfs-ro1-client-35
282:     type protocol/client
283:     option remote-host jc1letgfs15-pfs1
284:     option remote-subvolume /export/read-only/g08
285:     option transport-type tcp
286:     option ping-timeout 10
287: end-volume
288:
289: volume pfs-ro1-client-36
290:     type protocol/client
291:     option remote-host jc1letgfs14-pfs1
292:     option remote-subvolume /export/read-only/g09
293:     option transport-type tcp
294:     option ping-timeout 10
295: end-volume
296:
297: volume pfs-ro1-client-37
298:     type protocol/client
299:     option remote-host jc1letgfs15-pfs1
300:     option remote-subvolume /export/read-only/g09
301:     option transport-type tcp
302:     option ping-timeout 10
303: end-volume

304:
305: volume pfs-ro1-client-38
306:     type protocol/client
307:     option remote-host jc1letgfs14-pfs1
308:     option remote-subvolume /export/read-only/g10
309:     option transport-type tcp
310:     option ping-timeout 10
311: end-volume
312:
313: volume pfs-ro1-client-39
314:     type protocol/client
315:     option remote-host jc1letgfs15-pfs1
316:     option remote-subvolume /export/read-only/g10
317:     option transport-type tcp
318:     option ping-timeout 10
319: end-volume
320:
321: volume pfs-ro1-replicate-0
322:     type cluster/replicate
323:     option metadata-change-log on
324:     subvolumes pfs-ro1-client-0 pfs-ro1-client-1
325: end-volume
326:
327: volume pfs-ro1-replicate-1
328:     type cluster/replicate
329:     option metadata-change-log on
330:     subvolumes pfs-ro1-client-2 pfs-ro1-client-3
331: end-volume
332:
333: volume pfs-ro1-replicate-2
334:     type cluster/replicate
335:     option metadata-change-log on
336:     subvolumes pfs-ro1-client-4 pfs-ro1-client-5
337: end-volume
338:
339: volume pfs-ro1-replicate-3
340:     type cluster/replicate
341:     option metadata-change-log on
342:     subvolumes pfs-ro1-client-6 pfs-ro1-client-7
343: end-volume
344:
345: volume pfs-ro1-replicate-4
346:     type cluster/replicate
347:     option metadata-change-log on
348:     subvolumes pfs-ro1-client-8 pfs-ro1-client-9
349: end-volume
350:
351: volume pfs-ro1-replicate-5
352:     type cluster/replicate
353:     option metadata-change-log on
354:     subvolumes pfs-ro1-client-10 pfs-ro1-client-11
355: end-volume
356:
357: volume pfs-ro1-replicate-6
358:     type cluster/replicate
359:     option metadata-change-log on
360:     subvolumes pfs-ro1-client-12 pfs-ro1-client-13
361: end-volume
362:
363: volume pfs-ro1-replicate-7
364:     type cluster/replicate
365:     option metadata-change-log on
366:     subvolumes pfs-ro1-client-14 pfs-ro1-client-15
367: end-volume
368:
369: volume pfs-ro1-replicate-8
370:     type cluster/replicate
371:     option metadata-change-log on
372:     subvolumes pfs-ro1-client-16 pfs-ro1-client-17
373: end-volume
374:
375: volume pfs-ro1-replicate-9
376:     type cluster/replicate
377:     option metadata-change-log on
378:     subvolumes pfs-ro1-client-18 pfs-ro1-client-19
379: end-volume
380:
381: volume pfs-ro1-replicate-10
382:     type cluster/replicate
383:     option metadata-change-log on
384:     subvolumes pfs-ro1-client-20 pfs-ro1-client-21
385: end-volume
386:
387: volume pfs-ro1-replicate-11
388:     type cluster/replicate
389:     option metadata-change-log on
390:     subvolumes pfs-ro1-client-22 pfs-ro1-client-23
391: end-volume
392:
393: volume pfs-ro1-replicate-12
394:     type cluster/replicate
395:     option metadata-change-log on
396:     subvolumes pfs-ro1-client-24 pfs-ro1-client-25
397: end-volume
398:
399: volume pfs-ro1-replicate-13
400:     type cluster/replicate
401:     option metadata-change-log on
402:     subvolumes pfs-ro1-client-26 pfs-ro1-client-27
403: end-volume
404:
405: volume pfs-ro1-replicate-14
406:     type cluster/replicate
407:     option metadata-change-log on
408:     subvolumes pfs-ro1-client-28 pfs-ro1-client-29
409: end-volume
410:
411: volume pfs-ro1-replicate-15
412:     type cluster/replicate
413:     option metadata-change-log on
414:     subvolumes pfs-ro1-client-30 pfs-ro1-client-31
415: end-volume
416:
417: volume pfs-ro1-replicate-16
418:     type cluster/replicate
419:     option metadata-change-log on
420:     subvolumes pfs-ro1-client-32 pfs-ro1-client-33
421: end-volume
422:
423: volume pfs-ro1-replicate-17
424:     type cluster/replicate
425:     option metadata-change-log on
426:     subvolumes pfs-ro1-client-34 pfs-ro1-client-35
427: end-volume
428:
429: volume pfs-ro1-replicate-18
430:     type cluster/replicate
431:     option metadata-change-log on
432:     subvolumes pfs-ro1-client-36 pfs-ro1-client-37
433: end-volume
434:
435: volume pfs-ro1-replicate-19
436:     type cluster/replicate
437:     option metadata-change-log on
438:     subvolumes pfs-ro1-client-38 pfs-ro1-client-39
439: end-volume
440:
441: volume pfs-ro1-dht
442:     type cluster/distribute
443:     subvolumes pfs-ro1-replicate-0 pfs-ro1-replicate-1 pfs-ro1-replicate-2 pfs-ro1-replicate-3 pfs-ro1-replicate-4 pfs-ro1-replicate-5 pfs-ro1-replicate-6 pfs-ro1-replicate-7 pfs-ro1-replicate-8 pfs-ro1-replicate-9 pfs-ro1-replicate-10 pfs-ro1-replicate-11 pfs-ro1-replicate-12 pfs-ro1-replicate-13 pfs-ro1-replicate-14 pfs-ro1-replicate-15 pfs-ro1-replicate-16 pfs-ro1-replicate-17 pfs-ro1-replicate-18 pfs-ro1-replicate-19
444: end-volume
445:
446: volume pfs-ro1-write-behind
447:     type performance/write-behind
448:     subvolumes pfs-ro1-dht
449: end-volume
450:
451: volume pfs-ro1-read-ahead
452:     type performance/read-ahead
453:     subvolumes pfs-ro1-write-behind
454: end-volume
455:
456: volume pfs-ro1-io-cache
457:     type performance/io-cache
458:     option cache-size 2GB
459:     subvolumes pfs-ro1-read-ahead
460: end-volume
461:
462: volume pfs-ro1-quick-read
463:     type performance/quick-read
464:     option cache-size 2GB
465:     subvolumes pfs-ro1-io-cache
466: end-volume
467:
468: volume pfs-ro1-stat-prefetch
469:     type performance/stat-prefetch
470:     subvolumes pfs-ro1-quick-read
471: end-volume
472:
473: volume pfs-ro1
474:     type debug/io-stats
475:     option log-level ERROR
476:     subvolumes pfs-ro1-stat-prefetch
477: end-volume

+------------------------------------------------------------------------------+