Fbackup Limitation

[PVM_2]

Hi

I am going to take filesystem backup through fbackup(SAM).

Is is recommented?...My oracle files having size of 10GB and above..Is fbackup support more than 10GB?..

dev/vg01/lvol14   144703488 72428464 67757837   52% /oracle/DVR/sapdata4
/dev/vg01/lvol13   144703488 40909712 97306667   30% /oracle/DVR/sapdata3
/dev/vg01/lvol12   165675008 72597444 87260218   45% /oracle/DVR/sapdata2
/dev/vg01/lvol5    160432128 53409887 100333415   35% /oracle/DVR/sapdata1
/dev/vg01/lvol6    1048576  143015  848970   14% /oracle/DVR/origlogB
/dev/vg01/lvol7    1048576  143015  848970   14% /oracle/DVR/origlogA
/dev/vg01/lvol8    52428800  241626 48925802    0% /oracle/DVR/oraarch
/dev/vg01/lvol9    1048576  119127  871366   12% /oracle/DVR/mirrlogB
/dev/vg01/lvol10   1048576  119127  871366   12% /oracle/DVR/mirrlogA
/dev/vg01/lvol11   15728640 4220534 10788990   28% /oracle/DVR/102_64

Regards,

PVM..

[Dennis Handly]

>Does fbackup support more than 10GB?

Yes.

[James R. Ferguson]

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PVM_2 wrote

I am going to take filesystem backup through fbackup(SAM).

Is is recommented?...My oracle files having size of 10GB and above..I

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Hi:

"Recommended" - no, not in my opinion unless you are placing the tables in backup mode so that a static image exists during the backup.

In fact, 'fbackup' calculates a checksum for every file it is going to backup just before the file in question is going to be written to its archive.  When the file has been copied, another checksum is computed, this time from the archive copy.  If the checksums differ, as they would for actively changing files, then 'fbackup' marks the copy on the archive as bad and repeats the checksum-copy-checksum-compare cycle again.   This cycle is repeated up to 'maxretries' times which has a default value of five (see the 'fbackup' manpages).  If the 'maxretries' is exhausted, there will be no good copy of the file in the archive and any subsequent attempt to recover it (with 'frecover') will fail.

You should be aware, too, that while most veterans of HP-UX consider 'fbackup'/'frecover' to be one of HP's finest tools, it is deprecated in 11.31 and the official word is that it will not be made available in subsequent releases to create new backups.

In all, your question, Is it recommended" can be answered by saying, "no, but you can do it if you like".

Regards!

...JRF...

[Hakki Aydin Ucar]

I agree with JRF, in case of database backup due to online backup/dynamic data like Oracle DB , data protector seems more suitable ,if you can afford it OR already have it.