Hi Baris & John
I have had my good and bad times with Legato for some years now. The
latest challenge we are in the process of implementing is the BCV based
backups onto EMC CDL. The million dollar question was whether to use RMAN
or Filesystem backups when it comes to ORACLE Databases. I personally feel
as well my team of DBAs think, if we do a filesystem backup of the BCVs, in
case of a need to recover one tablespace out of the database, we may have
to do a full filesystem restore and then work towards isolating that
tablespace. With RMAN, I found the greatest convenience of point in time
recovery, as well more granular recovery of database components. This
certainly comes as a biggest advantage in my mind to backup through RMAN.
However, we are going through considerable trouble points in backing up the
BCV mounted databases through RMAN using a RCAT. Arch log validation is
posing issues, along with couple of occasions when we got RMAN reporting
corrupted block in the archive log file or one of the datafiles
(interesting though, the database started fine before the backup kicked
off, after the crash recovery etc.etc.)
Since I noticed this interesting thread I thought of responding my
perspectives. Also I feel we can collaborate and toss across some familiar
issues or suggestions we could share in this area. We are a HPUX shop with
EMC symm and Legato.
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