MFE SRDF-HC: Sesja SDDF zatrzymuje się po odzyskaniu danych z podróży ConGroup
Summary: Sesja Symmetrix Differential Data Facility (SDDF) zatrzymuje się po odzyskaniu danych z przerwania łącza.
Symptoms
Error message: GDDS233E GDDR MSC SDDF Reset for group msc-groupname
delayed - (0919201821441111 - 45635.85 seconds ago)
Testowanie wyzwolenia ConGroup w środowisku SRDF/STAR poprzez porzucenie łączy między dwiema lokacjami w relacji SRDF/S. Geographically Dispersed Disaster Restart (GDDR) kontrolujący środowisko.
Linki są usuwane dwukrotnie. Po pierwszym porzuceniu łącza i wyzwoleniu ConGroup sesje SDDF zostały pomyślnie odzyskane. Po drugim usunięciu sesja SDDF kończy się niepowodzeniem i wyświetlany jest komunikat GDDS233E. Komunikat wskazuje, że rotacja sesji SDDF została zatrzymana.
Sekwencję zdarzeń można znaleźć w sekcji uwag.
Cause
Po awarii łącza przetwarzanie sesji SDDF w środowisku SRDF/STAR lub SRDF/SQAR zostaje zatrzymane z powodu nieprawidłowej logiki programu. Niezgodność liczników, które powinny być aktualizowane synchronicznie, nie są aktualizowane, powodując pętlę sondowania.
Resolution
Obejście problemu
- Aby włączyć rotację sesji SDDF, konieczne jest ponowne uruchomienie środowiska MSC.
Trwałe rozwiązanie
- W celu rozwiązania tego problemu opracowano dla Mainframe Enablers 8.3 SF83083 Program Temporary Fix (PTF) i SR83049 PTF. Można je pobrać ze strony pomocy technicznej online firmy Dell EMC.
- W celu rozwiązania tego problemu opracowano SF82142 PTF i SR82088 PTF dla Mainframe Enablers 8.2. Można je pobrać ze strony pomocy technicznej online firmy Dell EMC.
- W przypadku rozwiązań Mainframe Enablers 8.1 opracowano SF81137 PTF i SR81096 PTF w celu rozwiązania tego problemu. Można je pobrać ze strony pomocy technicznej online firmy Dell EMC.
Additional Information
Problem został odtworzony w środowisku laboratoryjnym firmy Dell i zaobserwowano następującą sekwencję zdarzeń.
Łącza są usuwane w trakcie resetowania SDDF dla sesji 2. Komunikaty SCF1543E i SCF1523E wskazywały na problem. Resetowanie kończy się niepowodzeniem z kodem błędu 87. Kod błędu 87 jest normalny w tej sytuacji i wskazuje, że zdalne polecenie nie powiodło się.
06.58.03 STC01813 SCF1345I MSC - GROUP=PISTAR_DC1 MOTHER TASK FUNCTION TIMER
06.58.03 STC01813 SCF1343I MSC - GROUP=PISTAR_DC1 PROCESS_FC04-TIME FOR SWITCH
06.58.03 STC01813 SCF1382I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC04-CAN WE SWITCH?
06.58.03 STC01813 SCF1344I MSC - GROUP=PISTAR_DC1 PROCESS_FC05-ALL BOXES CAN SWITCH
06.58.03 STC01813 SCF1383I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC05-OPEN AND SWITCH
06.58.03 STC01813 SCF1346I MSC - GROUP=PISTAR_DC1 PROCESS_FC06-ALL BOXES OPENED WINDOW AND CYCLE SWITCHED
06.58.03 STC01813 SCF1564I MSC - GROUP=PISTAR_DC1 TIME OF DAY FOR CYCLE 00000052 IS 06:58:03.00
06.58.03 STC01813 SCF1384I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC06-CLOSE WINDOW
06.58.03 STC01813 SCF1347I MSC - GROUP=PISTAR_DC1 PROCESS_FC07-ALL BOXES CLOSED WINDOW
06.58.04 STC01813 SCF1454I MSC - GROUP=PISTAR_DC1 NEXT WAKE UP AT X'10581800'
06.58.04 STC01813 SCF1497I MSC - GROUP=PISTAR_DC1 Perform STAR SDDF RESET for Session 2
06.58.04 STC01813 SCF1501I MSC - GROUP=PISTAR_DC1 (0C00A,01) PERFORM SDDF FUNCTION FOR SDDF J02
06.58.04 STC01813 SCF1514I MSC - GROUP=PISTAR_DC1 (0C00A,01) RESET SDDF SESSION 2
06.58.05 STC01813 SCF1454I MSC - GROUP=PISTAR_DC1 NEXT WAKE UP AT X'10581800'
06.58.05 STC01813 SCF1499I MSC - GROUP=PISTAR_DC1 DONE PERFORMING SDDF FUNCTION
06.58.06 STC01813 SCF1454I MSC - GROUP=PISTAR_DC1 NEXT WAKE UP AT X'10581800'
06.58.18 STC01813 SCF1345I MSC - GROUP=PISTAR_DC1 MOTHER TASK FUNCTION TIMER
06.58.18 STC01813 SCF1343I MSC - GROUP=PISTAR_DC1 PROCESS_FC04-TIME FOR SWITCH
06.58.18 STC01813 SCF1382I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC04-CAN WE SWITCH?
06.58.18 STC01813 SCF1344I MSC - GROUP=PISTAR_DC1 PROCESS_FC05-ALL BOXES CAN SWITCH
06.58.18 STC01813 SCF1383I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC05-OPEN AND SWITCH
06.58.18 STC01813 SCF1346I MSC - GROUP=PISTAR_DC1 PROCESS_FC06-ALL BOXES OPENED WINDOW AND CYCLE SWITCHED
06.58.18 STC01813 SCF1564I MSC - GROUP=PISTAR_DC1 TIME OF DAY FOR CYCLE 00000053 IS 06:58:18.00
06.58.18 STC01813 SCF1384I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC06-CLOSE WINDOW
06.58.18 STC01813 SCF1347I MSC - GROUP=PISTAR_DC1 PROCESS_FC07-ALL BOXES CLOSED WINDOW
06.58.18 STC01813 SCF1499I MSC - GROUP=PISTAR_DC1 DONE PERFORMING SDDF FUNCTION
06.58.19 STC01813 SCF1454I MSC - GROUP=PISTAR_DC1 NEXT WAKE UP AT X'10583300'
06.58.33 STC01813 SCF1345I MSC - GROUP=PISTAR_DC1 MOTHER TASK FUNCTION TIMER
06.58.33 STC01813 SCF1343I MSC - GROUP=PISTAR_DC1 PROCESS_FC04-TIME FOR SWITCH
06.58.33 STC01813 SCF1382I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC04-CAN WE SWITCH?
06.58.33 STC01813 SCF1344I MSC - GROUP=PISTAR_DC1 PROCESS_FC05-ALL BOXES CAN SWITCH
06.58.33 STC01813 SCF1383I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC05-OPEN AND SWITCH
06.58.33 STC01813 SCF1346I MSC - GROUP=PISTAR_DC1 PROCESS_FC06-ALL BOXES OPENED WINDOW AND CYCLE SWITCHED
06.58.33 STC01813 SCF1564I MSC - GROUP=PISTAR_DC1 TIME OF DAY FOR CYCLE 00000054 IS 06:58:33.04
06.58.33 STC01813 SCF1384I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC06-CLOSE WINDOW
06.58.33 STC01813 SCF1347I MSC - GROUP=PISTAR_DC1 PROCESS_FC07-ALL BOXES CLOSED WINDOW
06.58.33 STC01813 SCF1499I MSC - GROUP=PISTAR_DC1 DONE PERFORMING SDDF FUNCTION
06.58.34 STC01813 SCF1454I MSC - GROUP=PISTAR_DC1 NEXT WAKE UP AT X'10584800'
06.58.34 STC01813 SCF1534E MSC - GROUP=PISTAR_DC1 (0C00A,01) GLOBAL SDDF RESET FAILURE
06.58.34 STC01813 SCF1532E MSC - GROUP=PISTAR_DC1 (0C00A,01) ERROR = (87) FOR DEVICE (1044)
06.58.48 STC01813 SCF1345I MSC - GROUP=PISTAR_DC1 MOTHER TASK FUNCTION TIMER
06.58.48 STC01813 SCF1343I MSC - GROUP=PISTAR_DC1 PROCESS_FC04-TIME FOR SWITCH
06.58.48 STC01813 SCF1382I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC04-CAN WE SWITCH?
06.58.48 STC01813 SCF1344I MSC - GROUP=PISTAR_DC1 PROCESS_FC05-ALL BOXES CAN SWITCH
06.58.48 STC01813 SCF1383I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC05-OPEN AND SWITCH
06.58.48 STC01813 SCF1346I MSC - GROUP=PISTAR_DC1 PROCESS_FC06-ALL BOXES OPENED WINDOW AND CYCLE SWITCHED
06.58.48 STC01813 SCF1564I MSC - GROUP=PISTAR_DC1 TIME OF DAY FOR CYCLE 00000055 IS 06:58:48.00
06.58.48 STC01813 SCF1384I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC06-CLOSE WINDOW
06.58.48 STC01813 SCF1347I MSC - GROUP=PISTAR_DC1 PROCESS_FC07-ALL BOXES CLOSED WINDOW
06.58.48 STC01813 SCF1499I MSC - GROUP=PISTAR_DC1 DONE PERFORMING SDDF FUNCTION
06.58.49 STC01813 SCF1454I MSC - GROUP=PISTAR_DC1 NEXT WAKE UP AT X'10590300'
06.59.03 STC01813 SCF1345I MSC - GROUP=PISTAR_DC1 MOTHER TASK FUNCTION TIMER
06.59.03 STC01813 SCF1343I MSC - GROUP=PISTAR_DC1 PROCESS_FC04-TIME FOR SWITCH
06.59.03 STC01813 SCF1382I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC04-CAN WE SWITCH?
06.59.03 STC01813 SCF1344I MSC - GROUP=PISTAR_DC1 PROCESS_FC05-ALL BOXES CAN SWITCH
06.59.03 STC01813 SCF1383I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC05-OPEN AND SWITCH
06.59.03 STC01813 SCF1346I MSC - GROUP=PISTAR_DC1 PROCESS_FC06-ALL BOXES OPENED WINDOW AND CYCLE SWITCHED
06.59.03 STC01813 SCF1564I MSC - GROUP=PISTAR_DC1 TIME OF DAY FOR CYCLE 00000056 IS 06:59:03.00
06.59.03 STC01813 SCF1384I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC06-CLOSE WINDOW
06.59.03 STC01813 SCF1347I MSC - GROUP=PISTAR_DC1 PROCESS_FC07-ALL BOXES CLOSED WINDOW
06.59.04 STC01813 SCF1454I MSC - GROUP=PISTAR_DC1 NEXT WAKE UP AT X'10591800'
06.59.04 STC01813 SCF1497I MSC - GROUP=PISTAR_DC1 Perform STAR SDDF ACTIVATE for Session 2
06.59.04 STC01813 SCF1501I MSC - GROUP=PISTAR_DC1 (0C00A,01) PERFORM SDDF FUNCTION FOR SDDF J02
06.59.04 STC01813 SCF1516I MSC - GROUP=PISTAR_DC1 (0C00A,01) ACTIVATE SDDF SESSION 2
06.59.04 STC01813 SCF1560I MSC - GROUP=PISTAR_DC1 (0C00A,01) GOT THE FOLLOWING ERROR
06.59.04 STC01813 SCF1325E MSC - SAI ERROR FOR VID=SDDFACTI R15=24 EMCRC=28 EMCRS=135 EMCRCX=X'17873206',
MD/ACTIVATE_SDDF_SESSION
. . . . . . . . . .
Rotacja SDDF nadal kończy się niepowodzeniem z błędem wywołania zdalnego wywołania syscall 87.
Gdy łącza zostaną przywrócone do trybu online, pierwszy RESET sesji 2 wydaje się zakończony, ale zajmuje tylko jeden cykl. W normalnej sytuacji ukończenie zajmuje cztery cykle. Wygląda na to, że rotacja sesji jest kontynuowana normalnie.
07.00.18 STC01813 SCF1345I MSC - GROUP=PISTAR_DC1 MOTHER TASK FUNCTION TIMER
07.00.18 STC01813 SCF1343I MSC - GROUP=PISTAR_DC1 PROCESS_FC04-TIME FOR SWITCH
07.00.18 STC01813 SCF1382I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC04-CAN WE SWITCH?
07.00.18 STC01813 SCF1344I MSC - GROUP=PISTAR_DC1 PROCESS_FC05-ALL BOXES CAN SWITCH
07.00.18 STC01813 SCF1383I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC05-OPEN AND SWITCH
07.00.18 STC01813 SCF1346I MSC - GROUP=PISTAR_DC1 PROCESS_FC06-ALL BOXES OPENED WINDOW AND CYCLE SWITCHED
07.00.18 STC01813 SCF1564I MSC - GROUP=PISTAR_DC1 TIME OF DAY FOR CYCLE 0000005B IS 07:00:18.00
07.00.18 STC01813 SCF1384I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC06-CLOSE WINDOW
07.00.18 STC01813 SCF1347I MSC - GROUP=PISTAR_DC1 PROCESS_FC07-ALL BOXES CLOSED WINDOW
07.00.19 STC01813 SCF1454I MSC - GROUP=PISTAR_DC1 NEXT WAKE UP AT X'11003300'
07.00.19 STC01813 SCF1497I MSC - GROUP=PISTAR_DC1 Perform STAR SDDF RESET for Session 2
07.00.19 STC01813 SCF1501I MSC - GROUP=PISTAR_DC1 (0C00A,01) PERFORM SDDF FUNCTION FOR SDDF J02
07.00.19 STC01813 SCF1514I MSC - GROUP=PISTAR_DC1 (0C00A,01) RESET SDDF SESSION 2
07.00.20 STC01813 SCF1454I MSC - GROUP=PISTAR_DC1 NEXT WAKE UP AT X'11003300'
07.00.20 STC01813 SCF1499I MSC - GROUP=PISTAR_DC1 DONE PERFORMING SDDF FUNCTION
07.00.21 STC01813 SCF1454I MSC - GROUP=PISTAR_DC1 NEXT WAKE UP AT X'11003300'
07.00.33 STC01813 SCF1345I MSC - GROUP=PISTAR_DC1 MOTHER TASK FUNCTION TIMER
07.00.33 STC01813 SCF1343I MSC - GROUP=PISTAR_DC1 PROCESS_FC04-TIME FOR SWITCH
07.00.33 STC01813 SCF1382I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC04-CAN WE SWITCH?
07.00.33 STC01813 SCF1344I MSC - GROUP=PISTAR_DC1 PROCESS_FC05-ALL BOXES CAN SWITCH
07.00.33 STC01813 SCF1383I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC05-OPEN AND SWITCH
07.00.33 STC01813 SCF1346I MSC - GROUP=PISTAR_DC1 PROCESS_FC06-ALL BOXES OPENED WINDOW AND CYCLE SWITCHED
07.00.33 STC01813 SCF1564I MSC - GROUP=PISTAR_DC1 TIME OF DAY FOR CYCLE 0000005C IS 07:00:33.02
07.00.33 STC01813 SCF1384I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC06-CLOSE WINDOW
07.00.33 STC01813 SCF1347I MSC - GROUP=PISTAR_DC1 PROCESS_FC07-ALL BOXES CLOSED WINDOW
07.00.34 STC01813 SCF1454I MSC - GROUP=PISTAR_DC1 NEXT WAKE UP AT X'11004800'
07.00.34 STC01813 SCF1497I MSC - GROUP=PISTAR_DC1 Perform STAR SDDF ACTIVATE for Session 2
07.00.34 STC01813 SCF1501I MSC - GROUP=PISTAR_DC1 (0C00A,01) PERFORM SDDF FUNCTION FOR SDDF J02
07.00.34 STC01813 SCF1516I MSC - GROUP=PISTAR_DC1 (0C00A,01) ACTIVATE SDDF SESSION 2
Następnym razem, gdy sesja 2 zostanie ZRESETOWANA, nigdy się nie ukończy. Sesja 1 kończy się pomyślnie.
07.02.33 STC01813 SCF1345I MSC - GROUP=PISTAR_DC1 MOTHER TASK FUNCTION TIMER
07.02.33 STC01813 SCF1343I MSC - GROUP=PISTAR_DC1 PROCESS_FC04-TIME FOR SWITCH
07.02.33 STC01813 SCF1382I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC04-CAN WE SWITCH?
07.02.33 STC01813 SCF1344I MSC - GROUP=PISTAR_DC1 PROCESS_FC05-ALL BOXES CAN SWITCH
07.02.33 STC01813 SCF1383I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC05-OPEN AND SWITCH
07.02.33 STC01813 SCF1346I MSC - GROUP=PISTAR_DC1 PROCESS_FC06-ALL BOXES OPENED WINDOW AND CYCLE SWITCHED
07.02.33 STC01813 SCF1564I MSC - GROUP=PISTAR_DC1 TIME OF DAY FOR CYCLE 00000064 IS 07:02:33.00
07.02.33 STC01813 SCF1384I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC06-CLOSE WINDOW
07.02.33 STC01813 SCF1347I MSC - GROUP=PISTAR_DC1 PROCESS_FC07-ALL BOXES CLOSED WINDOW
07.02.34 STC01813 SCF1454I MSC - GROUP=PISTAR_DC1 NEXT WAKE UP AT X'11024800'
07.02.34 STC01813 SCF1497I MSC - GROUP=PISTAR_DC1 Perform STAR SDDF RESET for Session 2
07.02.34 STC01813 SCF1501I MSC - GROUP=PISTAR_DC1 (0C00A,01) PERFORM SDDF FUNCTION FOR SDDF J02
07.02.34 STC01813 SCF1514I MSC - GROUP=PISTAR_DC1 (0C00A,01) RESET SDDF SESSION 2
07.02.35 STC01813 SCF1454I MSC - GROUP=PISTAR_DC1 NEXT WAKE UP AT X'11024800'
07.02.35 STC01813 SCF1499I MSC - GROUP=PISTAR_DC1 DONE PERFORMING SDDF FUNCTION
07.02.36 STC01813 SCF1454I MSC - GROUP=PISTAR_DC1 NEXT WAKE UP AT X'11024800'
07.02.48 STC01813 SCF1345I MSC - GROUP=PISTAR_DC1 MOTHER TASK FUNCTION TIMER
07.02.48 STC01813 SCF1343I MSC - GROUP=PISTAR_DC1 PROCESS_FC04-TIME FOR SWITCH
07.02.48 STC01813 SCF1382I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC04-CAN WE SWITCH?
07.02.48 STC01813 SCF1344I MSC - GROUP=PISTAR_DC1 PROCESS_FC05-ALL BOXES CAN SWITCH
07.02.48 STC01813 SCF1383I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC05-OPEN AND SWITCH
07.02.48 STC01813 SCF1346I MSC - GROUP=PISTAR_DC1 PROCESS_FC06-ALL BOXES OPENED WINDOW AND CYCLE SWITCHED
07.02.48 STC01813 SCF1564I MSC - GROUP=PISTAR_DC1 TIME OF DAY FOR CYCLE 00000065 IS 07:02:48.05
07.02.48 STC01813 SCF1384I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC06-CLOSE WINDOW
07.02.48 STC01813 SCF1347I MSC - GROUP=PISTAR_DC1 PROCESS_FC07-ALL BOXES CLOSED WINDOW
07.02.48 STC01813 SCF1499I MSC - GROUP=PISTAR_DC1 DONE PERFORMING SDDF FUNCTION
07.02.49 STC01813 SCF1454I MSC - GROUP=PISTAR_DC1 NEXT WAKE UP AT X'11030300'
07.03.03 STC01813 SCF1345I MSC - GROUP=PISTAR_DC1 MOTHER TASK FUNCTION TIMER
07.03.03 STC01813 SCF1343I MSC - GROUP=PISTAR_DC1 PROCESS_FC04-TIME FOR SWITCH
07.03.03 STC01813 SCF1382I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC04-CAN WE SWITCH?
07.03.03 STC01813 SCF1344I MSC - GROUP=PISTAR_DC1 PROCESS_FC05-ALL BOXES CAN SWITCH
07.03.03 STC01813 SCF1383I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC05-OPEN AND SWITCH
07.03.03 STC01813 SCF1346I MSC - GROUP=PISTAR_DC1 PROCESS_FC06-ALL BOXES OPENED WINDOW AND CYCLE SWITCHED
07.03.03 STC01813 SCF1564I MSC - GROUP=PISTAR_DC1 TIME OF DAY FOR CYCLE 00000066 IS 07:03:03.00
07.03.03 STC01813 SCF1384I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC06-CLOSE WINDOW
07.03.03 STC01813 SCF1347I MSC - GROUP=PISTAR_DC1 PROCESS_FC07-ALL BOXES CLOSED WINDOW
07.03.03 STC01813 SCF1499I MSC - GROUP=PISTAR_DC1 DONE PERFORMING SDDF FUNCTION
07.03.04 STC01813 SCF1454I MSC - GROUP=PISTAR_DC1 NEXT WAKE UP AT X'11031800'
07.03.18 STC01813 SCF1345I MSC - GROUP=PISTAR_DC1 MOTHER TASK FUNCTION TIMER
07.03.18 STC01813 SCF1343I MSC - GROUP=PISTAR_DC1 PROCESS_FC04-TIME FOR SWITCH
07.03.18 STC01813 SCF1382I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC04-CAN WE SWITCH?
07.03.18 STC01813 SCF1344I MSC - GROUP=PISTAR_DC1 PROCESS_FC05-ALL BOXES CAN SWITCH
07.03.18 STC01813 SCF1383I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC05-OPEN AND SWITCH
07.03.18 STC01813 SCF1346I MSC - GROUP=PISTAR_DC1 PROCESS_FC06-ALL BOXES OPENED WINDOW AND CYCLE SWITCHED
07.03.18 STC01813 SCF1564I MSC - GROUP=PISTAR_DC1 TIME OF DAY FOR CYCLE 00000067 IS 07:03:18.00
07.03.18 STC01813 SCF1384I MSC - GROUP=PISTAR_DC1 (0C00A,05) PROCESS_FC06-CLOSE WINDOW
ZAKOŃCZONO WYKONYWANIE SESJI SDDF jest kontynuowane bez dalszej rotacji SDDF do momentu wyłączenia MSC.