Installing oracle software using NFS

Installing oracle software using NFS

Yesterday, I used openfiler to create a nas storage system and install the oracle software. Everything went well before that. A ora error was reported when I created a database. When I used nfs to install the oracle database, the mount option had special requirements, the summary is as follows for future reference:

RACIn the table below

• Binaries is the shared mount points where the Oracle Home and CRS_HOME is installed.
• Datafiles shortdes Online Logs, Controlfile and Datafiles

  Operating System	Mount options for Binaries	Mount options for Oracle Datafiles	Mount options for CRS Voting Disk and OCR
  Sun Solaris *	Rw, bg, hard, nointr, rsize = 32768, Wsize = 32768, proto = tcp, Noac, vers = 3, suid	Rw, bg, hard, nointr, rsize = 32768, Wsize = 32768, proto = tcp, noac, Forcedirectio, vers = 3, suid	Rw, bg, hard, nointr, rsize = 32768, Wsize = 32768, proto = tcp, vers = 3, Noac, forcedirectio
  AIX (5L )**	Rw, bg, hard, nointr, rsize = 32768, Wsize = 32768, proto = tcp, vers = 3, Timeo = 600.	Cio, rw, bg, hard, nointr, rsize = 32768, Wsize = 32768, proto = tcp, noac, Vers = 3, timeo = 600	Cio, rw, bg, hard, intr, and rsize = 32768, Wsize = 32768, tcp, noac, Vers = 3, timeo = 600
  HPUX 11.23 ****-	Rw, bg, vers = 3, proto = tcp, noac, Hard, nointr, timeo = 600, Rsize = 32768, wsize = 32768, suid	Rw, bg, vers = 3, proto = tcp, noac, Forcedirectio, hard, nointr, timeo = 600, Rsize = 32768, wsize = 32768, suid	Rw, bg, vers = 3, proto = tcp, noac, Forcedirectio, hard, nointr, timeo = 600 , Rsize = 32768, wsize = 32768, suid
  Linux x86 #	Rw, bg, hard, nointr, rsize = 32768, Wsize = 32768, tcp, vers = 3, Timeo = 600, actimeo = 0	Rw, bg, hard, nointr, rsize = 32768, Wsize = 32768, tcp, actimeo = 0, Vers = 3, timeo = 600	Rw, bg, hard, nointr, rsize = 32768, Wsize = 32768, tcp, noac, vers = 3, Timeo = 600.
  Linux x86-64 #	Rw, bg, hard, nointr, rsize = 32768, Wsize = 32768, tcp, vers = 3, Timeo = 600, actimeo = 0	Rw, bg, hard, nointr, rsize = 32768, Wsize = 32768, tcp, actimeo = 0, Vers = 3, timeo = 600	Rw, bg, hard, nointr, rsize = 32768, Wsize = 32768, tcp, vers = 3, Timeo = 600, noac
  Linux-Itanium	Rw, bg, hard, nointr, rsize = 32768, Wsize = 32768, tcp, vers = 3, Timeo = 600, actimeo = 0	Rw, bg, hard, nointr, rsize = 32768, Wsize = 32768, tcp, actimeo = 0, Vers = 3, timeo = 600	Rw, bg, hard, nointr, rsize = 32768, Wsize = 32768, tcp, noac, vers = 3, Timeo = 600.

  * NFS mount option "forcedirectio" is required on Solaris platforms when mounting the OCR/CRS files when using Oracle 10.1.0.4 or 10.2.0.2 or later (Oracle unpublished bug 4466428)
  ** AIX is only supported with NAS on AIX 5.3 TL04 and higher with Oracle 10.2.0.1 and later (NetApp)
  * ** NAS devices are only supported with HPUX 11.23 or higher ONLY

  # These mount options are for Linux kernels 2.6 and above for older kernels please check Note 279393.1

  Due to Unpublished bug 5856342, it is necessary to use the following init. ora parameter when using NAS
  With all versions of RAC on Linux (x86 & X86-64 platforms) until 10.2.0.4. This bug is fixed and pinned in 10.2.0.4 patchset.
  Filesystemio_options = DIRECTIOSingle Instance

  Operating System	Mount options for Binaries	Mount options for Oracle Datafiles
  Sun Solaris * (8, 9, 10)	Rw, bg, hard, rsize = 32768, Wsize = 32768, vers = 3, nointr, Proto = tcp, suid	Rw, bg, hard, rsize = 32768, Wsize = 32768, vers = 3, [forcedirectio or llock], Nointr, proto = tcp, suid
  AIX (5L )**	Rw, bg, hard, rsize = 32768, Wsize = 32768, vers = 3, intr, Timeo = 600, proto = tcp	Rw, bg, hard, rsize = 32768, Wsize = 32768, vers = 3, cio, intr, Timeo = 600, proto = tcp
  HPUX 11.23 ****	Rw, bg, hard, rsize = 32768, Wsize = 32768, vers = 3, nointr, Timeo = 600, proto = tcp, suid	Rw, bg, hard, rsize = 32768, Wsize = 32768, vers = 3, nointr, Timeo = 600, proto = tcp, suid
  Linux x86 #	Rw, bg, hard, rsize = 32768, Wsize = 32768, vers = 3, nointr, Timeo = 600, tcp	Rw, bg, hard, rsize = 32768, Wsize = 32768, vers = 3, nointr, Timeo = 600, tcp, actime = 0 *
  Linux x86-64 #	Rw, bg, hard, rsize = 32768, Wsize = 32768, vers = 3, nointr, Timeo = 600, tcp	Rw, bg, hard, rsize = 32768, Wsize = 32768, vers = 3, nointr, Timeo = 600, tcp, actime = 0 *
  Linux-Itanium	Rw, bg, hard, rsize = 32768, Wsize = 32768, vers = 3, nointr, Timeo = 600, tcp	Rw, bg, hard, rsize = 32768, Wsize = 32768, vers = 3, nointr, Timeo = 600, tcp

  * Actime = 0 or noac can be used

  As shown above, setting the parameter still results in an error ora-27086 with the following error message:

  [oraten@yue ~]$ oerr ora 2708627086, 00000, "unable to lock file - already in use"// *Cause:  the file is locked by another process, indicating that it is//          currently in use by a database instance.// *Action: determine which database instance legitimately owns this file.

  Restart openfiler and solve the problem successfully. It seems that the lock on openfiler has not been released due to improper mount.

  Although oracle supports nfs, nfs is rarely used. Most of them use nfs to back up databases or store archives.