04-16-2014 11:21 AM
Hi there,
We have a policy with three schedule types:
1.) Full Monthly - Runs last day of the month.
2.) Diff Weekly - Runs on Saturday's.
3.) Incr Daily.- Runs every day
I'm finding that the incrementals are just as large as the Full. Could this be due to the fact that the full's only run once a month? I would like to run a full every week, but, they simply take too long.
04-16-2014 11:38 AM
By any chance did u verify this post
https://www-secure.symantec.com/connect/forums/there-reason-why-fulldifferential-incremental-and-cumulative-incremental-should-backup-same-a
can u please share us the bppllist <policyname> -U
04-16-2014 12:49 PM
Also curious to see policy config...
Are you sure about schedule types?
NetBackup has two kinds of Incremental Backups:
Cumulative Incremental:
This will backup all changes this the last Full backup.
Differential Incremental:
This will backup all changes since last backup - Full or Incremental.
If you read about these schedule types in NBU Admin Guide I, you will see that Cumulative and Differential schedules are not recommended in the same policy.
Can we assume that Incr backups are based on Archive Bit on this client?
04-16-2014 09:30 PM
Adding to "Incrementals based on ..." setting, tell us the detail of backup target. Are you using any snapshot technology on it? Is it read-only volume?
04-17-2014 04:40 AM
Thanks for your response. Looks like I have some reading to do in the NBU admin guide. Yes, I have one policy and quite sure about the schedule types. When I get to work I'll use the command line to post the schedule and policy type for further assistance.
Seth
04-17-2014 04:41 AM
These are basic windows NTFS volumes with VSS. These are not read only targets. Clients will be a mix of 2008 R2 and 2003.
04-17-2014 04:50 AM
.... quite sure about the schedule types.
2) Diff Weekly - Runs on Saturday's.
3.) Incr Daily.- Runs every day
Diff - As in Differential Incremental?
That will backup all changes since last backup - Full or Incremental ?
Meaning that Saturday's backup should only backup changes since Friday?
Incr - Is that Differential Incremental or Cumulative Incremental ?
Does it not make more sense to have Daily Diff and Weekly Cumulative?
(Even though Symantec recommends against having these in the same policy)
04-17-2014 06:36 AM
------------------------------------------------------------
Policy Name: flatfile_dev
Policy Type: MS-Windows
Active: yes
Effective date: 01/15/2014 14:42:22
Backup network drvs: no
Collect TIR info: yes, with move detection
Mult. Data Streams: yes
Client Encrypt: no
Checkpoint: no
Policy Priority: 0
Max Jobs/Policy: Unlimited
Disaster Recovery: 0
Collect BMR info: yes
Residence: DISK_FLAT_DLY
Volume Pool: Onsite_Tape
Server Group: *ANY*
Keyword: (none specified)
Data Classification: -
Residence is Storage Lifecycle Policy: no
Application Discovery: no
Discovery Lifetime: 28800 seconds
ASC Application and attributes: (none defined)
Granular Restore Info: no
Ignore Client Direct: no
Enable Metadata Indexing: no
Index server name: NULL
Use Accelerator: no
Optimized Backup: no
HW/OS/Client: Windows-x64 Windows2008 catorsrq2.ta1.tas-can.com
Windows-x64 Windows2008 catorsbd2.ta1.tas-can.com
Windows-x64 Windows2008 cawessbd1.ta1.tas-can.com
Windows-x64 Windows2008 cawessrd1.ta1.tas-can.com
Windows-x64 Windows2008 catorsgd1.ta1.tas-can.com
Windows-x64 Windows2008 catorssd1.ta1.tas-can.com
Windows-x64 Windows2008 cawessbq1.ta1.tas-can.com
Windows-x64 Windows2008 cawesspx1.ta1.tas-can.com
Windows-x64 Windows2008 cawessrq1.ta1.tas-can.com
HP9000-700 HP-UX11.11 catorscqwbd02.ta1.tas-can.com
Include: ALL_LOCAL_DRIVES
Schedule: FULL_MTHY
Type: Full Backup
Calendar sched: Enabled
Included Dates-----------
No days of week entered
Last day of month
Excluded Dates----------
No specific exclude dates entered
No exclude days of week entered
Synthetic: 0
Checksum Change Detection: 0
PFI Recovery: 0
Maximum MPX: 1
Retention Level: 8 (1 year)
Number Copies: 1
Fail on Error: 0
Residence: DISK_FLAT_MTHY
Volume Pool: (same as policy volume pool)
Server Group: (same as specified for policy)
Residence is Storage Lifecycle Policy: 0
Schedule indexing: 0
Daily Windows:
Sunday 18:00:00 --> Sunday 23:00:00
Monday 18:00:00 --> Monday 23:00:00
Tuesday 18:00:00 --> Tuesday 23:00:00
Wednesday 18:00:00 --> Wednesday 23:00:00
Thursday 18:00:00 --> Thursday 23:00:00
Friday 18:00:00 --> Friday 23:00:00
Saturday 18:00:00 --> Saturday 23:00:00
Schedule: FULL_MANUAL
Type: Full Backup
Frequency: every 7 days
Excluded Dates----------
No specific exclude dates entered
No exclude days of week entered
Synthetic: 0
Checksum Change Detection: 0
PFI Recovery: 0
Maximum MPX: 1
Retention Level: 1 (2 weeks)
Number Copies: 1
Fail on Error: 1
Residence: DISK_FLAT_MTHY
Volume Pool: (same as policy volume pool)
Server Group: (same as specified for policy)
Residence is Storage Lifecycle Policy: 0
Schedule indexing: 0
Daily Windows:
Schedule: DIFF_WKLY
Type: Differential Incremental Backup
Frequency: every 1 hour
Excluded Dates----------
No specific exclude dates entered
No exclude days of week entered
PFI Recovery: 0
Maximum MPX: 1
Retention Level: 1 (2 weeks)
Number Copies: 1
Fail on Error: 0
Residence: DISK_FLAT_WKLY
Volume Pool: (same as policy volume pool)
Server Group: (same as specified for policy)
Residence is Storage Lifecycle Policy: 0
Schedule indexing: 0
Daily Windows:
Friday 18:00:00 --> Friday 20:00:00
Schedule: INCR_DLY
Type: Cumulative Incremental Backup
Frequency: every 1 day
Excluded Dates----------
No specific exclude dates entered
Friday, Week 1 excluded
Friday, Week 2 excluded
Friday, Week 3 excluded
Friday, Week 4 excluded
Friday, Week 5 excluded
Last day of month excluded
Synthetic: 0
PFI Recovery: 0
Maximum MPX: 1
Retention Level: 0 (1 week)
Number Copies: 1
Fail on Error: 0
Residence: DISK_FLAT_DLY
Volume Pool: (same as policy volume pool)
Server Group: (same as specified for policy)
Residence is Storage Lifecycle Policy: 0
Schedule indexing: 0
Daily Windows:
Sunday 18:00:00 --> Sunday 20:00:00
Monday 18:00:00 --> Monday 20:00:00
Tuesday 18:00:00 --> Tuesday 20:00:00
Wednesday 18:00:00 --> Wednesday 20:00:00
Thursday 18:00:00 --> Thursday 20:00:00
Friday 18:00:00 --> Friday 20:00:00
Saturday 18:00:00 --> Saturday 20:00:00
04-18-2014 07:49 PM
Size of Cumulative Incremental backups are always same with Full on all the clients? Or it occasionally happen?
Adding to fixing incremental type, please do not mix calender based schedules and frequency based schedules in single policy as it may result in unexpected schedule running. Consider to use calendar based scheduling for all.
04-20-2014 05:17 AM
What is the application(s) on the boxes? Some applications do optimisation under the hood this could affect the size of the backup.
Turn off move detection - if the backups are significantly smaller this means the application is shuffling files around.
Are there any scripts changing file metadata? I've seen ACL scripts mess with non-full backups.