Advice on allocating SAN storage to a virtual database server on VMware Post: 303027927

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Operating Systems Linux Red Hat Advice on allocating SAN storage to a virtual database server on VMware Post 303027927 by Scrutinizer on Friday 28th of December 2018 09:23:31 AM

12-28-2018

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For both performance and availability reasons I would keep tend the setup of different luns for different part of the database , data, redo, archive, duplex, unless there are small database and/or only crash recovery is required.. You can create different Volume groups for each set of disks.. Definitely also a different VG for OS data.
It may be beneficial to spread the date over several LUNS in the data VG, with or without a small stripe, that depends on your workload and underlying SAN storage, to overcome bottlenecks due to the sequential nature of SAN connectivity (Fibre Channel, iSCSI). An alternative to the latter may be to enlarge the queuing depth, it all depends. The other Oracle VG's require sequential access, where a single disk (two lun paths) will probably suffice..

If you don't use ASM, you would need to determine if you want to use raw or cooked logical volumes within the VG's.
You need to set multipathing, and then there is the backup and recovery method you need to choose, etc..

Last edited by Scrutinizer; 12-28-2018 at 10:31 AM..

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LEARN ABOUT REDHAT

ovdb_recover

ovdb_recover(8) 					    InterNetNews Documentation						   ovdb_recover(8)

NAME

       ovdb_recover - Perform recovery on the ovdb database, if needed

SYNOPSYS

       ovdb_recover [-f]

DESCRIPTION

       Attempts to open the ovdb database, and if the database needs recovery, it attempts to perform the recovery.  Similar in function to the
       BerkeleyDB db_recover command.

       Specify the `-f' option to force a recovery, even if the database appears to not need it.  It is not an error to perform a recovery opera-
       tion on a clean database.  However, do not run `ovdb_recover -f' while the database is in use by any other processes.

       Returns exit status of 0 if the database did not need recovery or if recovery succeeded, and returns exit status 1 if recovery failed.  In
       the latter case, the database may be damaged beyond repair, requiring a rebuild with makehistory(8).

       This command is normally called automatically by rc.news(8).

HISTORY

       Written by Heath Kehoe <hakehoe@avalon.net> for InterNetNews.

SEE ALSO

       ovdb(5), makehistory(8)

3rd Berkeley Distribution					      INN 2.3							   ovdb_recover(8)