Increase lvol size in HP-UX

Lincoln Zuljewic Silva — Fri, 07 May 2010 21:11:21 +0000

Let’s assume that you want to increase 1Gb of the /dev/MyVG /lvol1 device (mounted as /filesystem):
# bdf /filesystem Filesystem kbytes used avail %used Mounted on /dev/ MyVG /lvol1 573440000 533892407 37080557 94% /filesystem
The actual size is 573440000 Kb (573 Gb) and you will increase it to 574440000 Kb (574 Gb).

- Check if there is available space in the Volume Group:
# vgdisplay MyVG --- Volume groups --- VG Name /dev/MyVG VG Write Access read/write VG Status available Max LV 255 Cur LV 1 Open LV 1 Max PV 100 Cur PV 17 Act PV 17 Max PE per PV 15000 VGDA 34 PE Size (Mbytes) 16 Total PE 36907 Alloc PE 35000 Free PE 1907 Total PVG 1 Total Spare PVs 0 Total Spare PVs in use 0

Note the “Free PE” and “PE Size (Mbytes)”. It say that you has 30512 Mb (30Gb) available in MyVG (Free PE * PE Size).

- Increase the lvol:
# lvextend -L 574440 /dev/MyVG/lvol1 * the syntax is: lvexten -L

- Now, increase the filesystem:
# fsadm -b 574440m /filesystem * the syntax is: fsadm –b

Disable file size limit in AIX

Lincoln Zuljewic Silva — Fri, 04 Dec 2009 11:58:48 +0000

By default, if you try do copy/create a file larger than 2Gb in AIX, you will get a “file too large” message. That happen because AIX have a default limit of 2Gb for files.

To disable (or increase) this limit, edit /etc/security/limits and change the parameter fsize to “-1” or whatever value you want.

You can change it in “default” to apply to all users or change it to a specific user.

Remember that the file system should be JFS2.

System Adm » fs

Increase lvol size in HP-UX

Disable file size limit in AIX