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тАО11-19-2003 07:11 AM
тАО11-19-2003 07:11 AM
/dev/vg00/lvol3 / vxfs
/dev/vg00/lvol1 /stand hfs
From what I understand the correct procedures are,
umount /
fsadm -F vxfs -o largefiles /dev/vg00/lrvol3
But the root is mounted to the vxfs, I may not able to umount it. Will the online JFS help in this situation or the only option is to newfs the volume?
How about if the filesystem is a hfs instead of vxfs, will it be less complicated?
Thanks,
Solved! Go to Solution.
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тАО11-19-2003 07:19 AM
тАО11-19-2003 07:19 AM
Solution# fsadm -F vxfs -o largefiles /
Note that it would use the mounted filesystem name instead of the logical volume name.
If you really want to do this you will probably have to reboot the machine, come up in LVM maintenance mode (hpux -lm I think -- note this is NOT single-user mode), do the fsadm, make sure you /etc/fstab is correct and then reboot.
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тАО11-19-2003 07:20 AM
тАО11-19-2003 07:20 AM
Re: Largefiles support
I was unaware of a requirement that the file system be unmounted and I can't imagine how you could unmount /, even in single user mode. I do have to ask, though, why you need large files support in these two file systems. They should be relatively static and there shouldn't be any huge files in them unless you're storing something besides the operating system essentials in them. Any other data should be place in a separate volume group.
Pete
Pete
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тАО11-19-2003 09:16 AM
тАО11-19-2003 09:16 AM
Re: Largefiles support
And as for /stand, its HFS, needs to remain HFS, so there will never be an online command to issue.
Here's the HFS large file option.
/usr/sbin/mkfs -F hfs -o largefiles /dev/vg02/rlvol1
http://docs.hp.com/hpux/onlinedocs/os/lgfiles4.pdf
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тАО11-20-2003 03:02 AM
тАО11-20-2003 03:02 AM
Re: Largefiles support
Patrick is correct. You dont have to umount any filesystem to assign largefiles option to it, it can be done online without problem.
My contribution to your question is this:
Largefiles as you know is for 2GB or larger. Typically largefiles are used primarily and most often for database files and less often for Application filesystems.
These filesystems are typically NOT OS filesystems. The nature of most UNIX Platforms is to maintain OS files below 2GB As many 3rd party tools dont support >2GB files for such things as tar/cpio/ftp..
HPUX r* commands and HP ftp do support >2GB but many other OS may not.
Victor, I am just curious what your reasoning is to implement Largefiles on your OS? especially on base OS filesystems such as / and /stand.
I doubt either of those filesystems are 2gb in total, more like 500-1g at most.
Mine are very small in comparison to that:
# bdf /
Filesystem .... kbytes used avail %used Mounted on
/dev/vg00/root 258048 146211 104902 58%
# bdf /stand
Filesystem ........ kbytes used avail %used Mounted on
/dev/vg00/stand 199381 53861 125581 30% /stand