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Query regarding FS mount point options


Query regarding FS mount point options



I have to create and  mount SAP filesystems with following options


largefiles,mincache=direct,convosync=direct,cio,delaylog,nodatainlog 0 2


But I dont have Online JFS and the OS is 11.31.


So just want to confirm.  is this True.?


And how do I check whether Filesystems on other Servers are mounted with same options. Will fstyp show me the details ( I dont have a HPUX server at hand right now to check,  so please help)



Esteemed Contributor

Re: Query regarding FS mount point options



yes, i guess you need online jfs to use cio options. Verify with swlist commands.


If OnlineJFS is installed, proceed to create new logical volume

# lvcreate -L 10240 -n lvdata /dev/vg01


Create new filesystem

# mkfs -F vxfs -o largefiles /dev/vg01/rlvdata


You could try with adding below entries in /etc/fstab.

/dev/vg01/lvdata  /data   vxfs   largefiles,mincache=direct,cio,delaylog,nodatainlog 0 2


Mount it

# mount /data


You can check if other servers mounted by verifying their /etc/fstab entries or from `mount` command.



Occasional Advisor

Re: Query regarding FS mount point options

> largefiles,mincache=direct,convosync=direct,cio,delaylog,nodatainlog 0 2


These options require the optional (but I think they should be mandatory for production database servers) product Online JFS. If you're spending the money to run SAP, you should invest in Online JFS (new mount options and online lvol resizing), Glance PlusPak (performance monitoring) and if you have any JBOD storage, get Mirror/UX. To see which of these products are installed on any system, use swlist:


# swlist | grep -ie onlinejfs -e glance -e mirror
  B2491BA     B.11.31          MirrorDisk/UX (Server)
  B3701AA     C.05.00.050   HP GlancePlus/UX Pak for 11.31
  B3929FB      B.05.00.02     OnlineJFS for Veritas File System 5.0 Bundle



The command  mount -p will show you the current mount options.