05-17-2011 04:19 AM
Master/media servers are NBU Enterprise 6.5.4, on Dell PE2950 running Windows 2003 Server R2 X64.
After several years of successful traditional Full/Cumulative backups, I have setup three policies with Synthetic Fulls. They all start off OK, and the Diff Incrementals are fine. But the weekly sequence for the Fulls is :- Trad OK, Synth OK, Synth OK, Synth OK, Synth OK, nothing! The Diff Incrs are unaffected, though - they carry on as intended. After 4 good Synth Fulls we see no warnings or errors, no bpsynth log, no bpsyn_ entries in bptm log - nothing. I have captured the nbpemreq -predictall output after the Friday Diff Incr just before the missing Synth, and it shows no entry for the Synth that's due - it has obviously forgotten about it - a scheduler problem perhaps. To get started again, I just have to run a Trad Full, then we get 4 weekends of Synth Fulls, then it stops again. All predictable and reproducible.
Two affected policies are big fileshares (>1TB >2m files) on SAN storage attached to a cluster of Dell NX1950's; the third policy is >100GB >1m files on a typical Windows server. Apart from the number of files, no pattern there. Our retention policy is 1 month - maybe that's significant (last Trad Full image expires and disappears over the horizon)
Anybody with experience or ideas about this?
TIA
05-17-2011 05:30 AM
Can you post the schedules?
05-17-2011 06:19 AM
Thanks for replying, Riaan. Here are the schedules
bpplsched W_CS_FS
SCHED Full 0 1 86400 3 0 0 0 *NULL* 0 0 0 0 0 0 -1 0
SCHEDWIN 0 0 0 0 0 0 0 0 0 0 0 0 0 0
SCHEDRES *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL*
SCHEDPOOL *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL*
SCHEDRL 3 1 1 1 1 1 1 1 1 1
SCHEDFOE 0 0 0 0 0 0 0 0 0 0
SCHEDSG *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL*
SCHED SyntheticFull 0 1 86400 3 0 0 0 *NULL* 0 0 0 0 1 0 -1 0
SCHEDWIN 0 86400 0 0 0 0 0 0 0 0 0 0 0 0
SCHEDRES *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL*
SCHEDPOOL *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL*
SCHEDRL 3 1 1 1 1 1 1 1 1 1
SCHEDFOE 0 0 0 0 0 0 0 0 0 0
SCHEDSG *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL*
SCHED Differential_Incremental 1 1 86400 1 0 0 0 *NULL* 0 0 0 0 0 0 -1 0
SCHEDWIN 0 0 0 0 75600 10800 75600 10800 75600 10800 75600 10800 0 0
SCHEDRES *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL*
SCHEDPOOL *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL*
SCHEDRL 1 1 1 1 1 1 1 1 1 1
SCHEDFOE 0 0 0 0 0 0 0 0 0 0
SCHEDSG *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL*
------------------------------------------------------------------------
bpplsched W_RD_SYNTH2
SCHED Full 0 1 86400 3 0 0 0 *NULL* 0 0 0 0 0 0 -1 0
SCHEDWIN 0 0 0 0 0 0 0 0 0 0 0 0 0 0
SCHEDRES *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL*
SCHEDPOOL *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL*
SCHEDRL 3 1 1 1 1 1 1 1 1 1
SCHEDFOE 0 0 0 0 0 0 0 0 0 0
SCHEDSG *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL*
SCHED SynthFull 0 1 86400 3 0 0 0 *NULL* 0 0 0 0 1 0 -1 0
SCHEDWIN 0 86400 0 0 0 0 0 0 0 0 0 0 0 0
SCHEDRES *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL*
SCHEDPOOL *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL*
SCHEDRL 3 1 1 1 1 1 1 1 1 1
SCHEDFOE 0 0 0 0 0 0 0 0 0 0
SCHEDSG *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL*
SCHED Differential-Inc 1 1 86400 1 0 0 0 *NULL* 0 0 0 0 0 0 -1 0
SCHEDWIN 0 0 75600 10800 75600 10800 75600 10800 75600 10800 75600 10800 0 0
SCHEDRES *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL*
SCHEDPOOL *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL*
SCHEDRL 1 1 1 1 1 1 1 1 1 1
SCHEDFOE 0 0 0 0 0 0 0 0 0 0
SCHEDSG *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL*
------------------------------------------------------------------------
bpplsched W_Synth_RDCARPARKING_FS
SCHED Full 0 1 86400 3 0 0 0 *NULL* 0 0 0 0 0 0 -1 0
SCHEDWIN 0 0 0 0 0 0 0 0 0 0 0 0 0 0
SCHEDRES *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL*
SCHEDPOOL *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL*
SCHEDRL 3 1 1 1 1 1 1 1 1 1
SCHEDFOE 0 0 0 0 0 0 0 0 0 0
SCHEDSG *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL*
SCHED SynthFull 0 1 86400 3 0 0 0 *NULL* 0 0 0 0 1 0 -1 0
SCHEDWIN 0 0 0 0 0 0 0 0 0 0 0 0 0 86400
SCHEDRES *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL*
SCHEDPOOL *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL*
SCHEDRL 3 1 1 1 1 1 1 1 1 1
SCHEDFOE 0 0 0 0 0 0 0 0 0 0
SCHEDSG *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL*
SCHED Differential_Incremental 1 1 86400 1 0 0 0 *NULL* 0 0 0 0 0 0 -1 0
SCHEDWIN 0 0 75600 10800 75600 10800 75600 10800 75600 10800 75600 10800 0 0
SCHEDRES *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL*
SCHEDPOOL *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL*
SCHEDRL 1 1 1 1 1 1 1 1 1 1
SCHEDFOE 0 0 0 0 0 0 0 0 0 0
SCHEDSG *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL* *NULL*
05-17-2011 06:29 AM
1. W_CS_FS
Schedule: Full
Type: FULL (0)
Frequency: 1 day(s) (86400 seconds)
Retention Level: 3 (1 month)
u-wind/o/d: 0 0
Incr Type: DELTA (0)
Alt Read Host: (none defined)
Max Frag Size: 0 MB
Synthetic: 0
PFI Recovery: 0
Maximum MPX: 1
Number Copies: 1
Fail on Error: 0
Residence: (specific storage unit not required)
Volume Pool: (same as policy volume pool)
Server Group: (same as specified for policy)
Residence is Storage Lifecycle Policy: 0
Daily Windows:
Day Open Close W-Open W-Close
Sunday 000:00:00 000:00:00
Monday 000:00:00 000:00:00
Tuesday 000:00:00 000:00:00
Wednesday 000:00:00 000:00:00
Thursday 000:00:00 000:00:00
Friday 000:00:00 000:00:00
Saturday 000:00:00 000:00:00
Schedule: SyntheticFull
Type: FULL (0)
Frequency: 1 day(s) (86400 seconds)
Retention Level: 3 (1 month)
u-wind/o/d: 0 0
Incr Type: DELTA (0)
Alt Read Host: (none defined)
Max Frag Size: 0 MB
Synthetic: 1
PFI Recovery: 0
Maximum MPX: 1
Number Copies: 1
Fail on Error: 0
Residence: (specific storage unit not required)
Volume Pool: (same as policy volume pool)
Server Group: (same as specified for policy)
Residence is Storage Lifecycle Policy: 0
Daily Windows:
Day Open Close W-Open W-Close
Sunday 000:00:00 024:00:00 000:00:00 024:00:00
Monday 000:00:00 000:00:00
Tuesday 000:00:00 000:00:00
Wednesday 000:00:00 000:00:00
Thursday 000:00:00 000:00:00
Friday 000:00:00 000:00:00
Saturday 000:00:00 000:00:00
Schedule: Differential_Incremental
Type: INCR (1)
Frequency: 1 day(s) (86400 seconds)
Retention Level: 1 (2 weeks)
u-wind/o/d: 0 0
Incr Type: DELTA (0)
Alt Read Host: (none defined)
Max Frag Size: 0 MB
PFI Recovery: 0
Maximum MPX: 1
Number Copies: 1
Fail on Error: 0
Residence: (specific storage unit not required)
Volume Pool: (same as policy volume pool)
Server Group: (same as specified for policy)
Residence is Storage Lifecycle Policy: 0
Daily Windows:
Day Open Close W-Open W-Close
Sunday 000:00:00 000:00:00
Monday 000:00:00 000:00:00
Tuesday 021:00:00 024:00:00 069:00:00 072:00:00
Wednesday 021:00:00 024:00:00 093:00:00 096:00:00
Thursday 021:00:00 024:00:00 117:00:00 120:00:00
Friday 021:00:00 024:00:00 141:00:00 144:00:00
Saturday 000:00:00 000:00:00
---------------------------------------------------------------------------------
2. W_SYNTH_RDCARPARKING_FS
Schedule: Full
Type: FULL (0)
Frequency: 1 day(s) (86400 seconds)
Retention Level: 3 (1 month)
u-wind/o/d: 0 0
Incr Type: DELTA (0)
Alt Read Host: (none defined)
Max Frag Size: 0 MB
Synthetic: 0
PFI Recovery: 0
Maximum MPX: 1
Number Copies: 1
Fail on Error: 0
Residence: (specific storage unit not required)
Volume Pool: (same as policy volume pool)
Server Group: (same as specified for policy)
Residence is Storage Lifecycle Policy: 0
Daily Windows:
Day Open Close W-Open W-Close
Sunday 000:00:00 000:00:00
Monday 000:00:00 000:00:00
Tuesday 000:00:00 000:00:00
Wednesday 000:00:00 000:00:00
Thursday 000:00:00 000:00:00
Friday 000:00:00 000:00:00
Saturday 000:00:00 000:00:00
Schedule: SynthFull
Type: FULL (0)
Frequency: 1 day(s) (86400 seconds)
Retention Level: 3 (1 month)
u-wind/o/d: 0 0
Incr Type: DELTA (0)
Alt Read Host: (none defined)
Max Frag Size: 0 MB
Synthetic: 1
PFI Recovery: 0
Maximum MPX: 1
Number Copies: 1
Fail on Error: 0
Residence: (specific storage unit not required)
Volume Pool: (same as policy volume pool)
Server Group: (same as specified for policy)
Residence is Storage Lifecycle Policy: 0
Daily Windows:
Day Open Close W-Open W-Close
Sunday 000:00:00 000:00:00
Monday 000:00:00 000:00:00
Tuesday 000:00:00 000:00:00
Wednesday 000:00:00 000:00:00
Thursday 000:00:00 000:00:00
Friday 000:00:00 000:00:00
Saturday 000:00:00 024:00:00 144:00:00 168:00:00
Schedule: Differential_Incremental
Type: INCR (1)
Frequency: 1 day(s) (86400 seconds)
Retention Level: 1 (2 weeks)
u-wind/o/d: 0 0
Incr Type: DELTA (0)
Alt Read Host: (none defined)
Max Frag Size: 0 MB
PFI Recovery: 0
Maximum MPX: 1
Number Copies: 1
Fail on Error: 0
Residence: (specific storage unit not required)
Volume Pool: (same as policy volume pool)
Server Group: (same as specified for policy)
Residence is Storage Lifecycle Policy: 0
Daily Windows:
Day Open Close W-Open W-Close
Sunday 000:00:00 000:00:00
Monday 021:00:00 024:00:00 045:00:00 048:00:00
Tuesday 021:00:00 024:00:00 069:00:00 072:00:00
Wednesday 021:00:00 024:00:00 093:00:00 096:00:00
Thursday 021:00:00 024:00:00 117:00:00 120:00:00
Friday 021:00:00 024:00:00 141:00:00 144:00:00
Saturday 000:00:00 000:00:00
----------------------------------------------------------------
3. W_RD_SYNTH2
Schedule: Full
Type: FULL (0)
Frequency: 1 day(s) (86400 seconds)
Retention Level: 3 (1 month)
u-wind/o/d: 0 0
Incr Type: DELTA (0)
Alt Read Host: (none defined)
Max Frag Size: 0 MB
Synthetic: 0
PFI Recovery: 0
Maximum MPX: 1
Number Copies: 1
Fail on Error: 0
Residence: (specific storage unit not required)
Volume Pool: (same as policy volume pool)
Server Group: (same as specified for policy)
Residence is Storage Lifecycle Policy: 0
Daily Windows:
Day Open Close W-Open W-Close
Sunday 000:00:00 000:00:00
Monday 000:00:00 000:00:00
Tuesday 000:00:00 000:00:00
Wednesday 000:00:00 000:00:00
Thursday 000:00:00 000:00:00
Friday 000:00:00 000:00:00
Saturday 000:00:00 000:00:00
Schedule: SynthFull
Type: FULL (0)
Frequency: 1 day(s) (86400 seconds)
Retention Level: 3 (1 month)
u-wind/o/d: 0 0
Incr Type: DELTA (0)
Alt Read Host: (none defined)
Max Frag Size: 0 MB
Synthetic: 1
PFI Recovery: 0
Maximum MPX: 1
Number Copies: 1
Fail on Error: 0
Residence: (specific storage unit not required)
Volume Pool: (same as policy volume pool)
Server Group: (same as specified for policy)
Residence is Storage Lifecycle Policy: 0
Daily Windows:
Day Open Close W-Open W-Close
Sunday 000:00:00 024:00:00 000:00:00 024:00:00
Monday 000:00:00 000:00:00
Tuesday 000:00:00 000:00:00
Wednesday 000:00:00 000:00:00
Thursday 000:00:00 000:00:00
Friday 000:00:00 000:00:00
Saturday 000:00:00 000:00:00
Schedule: Differential-Inc
Type: INCR (1)
Frequency: 1 day(s) (86400 seconds)
Retention Level: 1 (2 weeks)
u-wind/o/d: 0 0
Incr Type: DELTA (0)
Alt Read Host: (none defined)
Max Frag Size: 0 MB
PFI Recovery: 0
Maximum MPX: 1
Number Copies: 1
Fail on Error: 0
Residence: (specific storage unit not required)
Volume Pool: (same as policy volume pool)
Server Group: (same as specified for policy)
Residence is Storage Lifecycle Policy: 0
Daily Windows:
Day Open Close W-Open W-Close
Sunday 000:00:00 000:00:00
Monday 021:00:00 024:00:00 045:00:00 048:00:00
Tuesday 021:00:00 024:00:00 069:00:00 072:00:00
Wednesday 021:00:00 024:00:00 093:00:00 096:00:00
Thursday 021:00:00 024:00:00 117:00:00 120:00:00
Friday 021:00:00 024:00:00 141:00:00 144:00:00
Saturday 000:00:00 000:00:00
05-17-2011 06:35 AM
Have a look at this post:
https://www-secure.symantec.com/connect/forums/netbackup-synthetic-full-wows#comment-5338041
05-17-2011 07:35 AM
Check this one
http://www.symantec.com/docs/TECH70557
05-17-2011 07:41 AM
Thanks Marianne - very interesting. My clients were set to use Change Journal (timestamp), in order to speed up incrementals. I have changed these three back to Archive Bit and I'll let you know in another 5 weeks. I suspect the Incrementals will now take a lot longer ploughing through the directory entries (1million - 2.5million files on these clients) to locate changed files. Well, you can't have everything, I suppose . . . Unless I upgrade to 7.1, of course.
I saw the post about 238 errors with Synth a month or more ago, but as we don't get any errors I didn't check all the responses and so missed the note about the bug.
Ian
05-17-2011 08:38 AM
Thanks very much Riaan. I think I'd better upgrade to the latest release of 6.5. I just wonder why my Googling didn't find this before (perhaps it's not public). Maybe I'll be able to go back to Change Journal too.
Kind regards,
Ian