Reducing / on rootvg Post: 303018379

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Operating Systems AIX Reducing / on rootvg Post 303018379 by rbatte1 on Tuesday 5th of June 2018 07:03:33 AM

06-05-2018

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Not a straightforward fix, I'm afraid. I don't think you can reduce the filesystem in a simple way. If it is in-use, then there is pretty much no chance.

I've done this on Linux and it's messy. I ended up having to boot from media and forcing it from there, but I can't remember if AIX let's you do that anyway. If I was to be faced with this on AIX, then I would have two options but both of them are effectively Disaster Recovery options:-

Use mkszfile and then edit the control file it generates before running a mksysb. You can then restore from the backup using the changed filesystem size
Use the product Storix – Linux, AIX and Solaris Backup and System Recovery Software to backup and then restore. During the restore you can adjust the disk sizes.

An alternate to the first one might be to use savevg & restvg whilst adjusting the LV description file, but it's essentially the same.

They are pretty serious and obviously requires a chunk of down-time (as does the way I did with Linux) however you might be able to use one of these methods to clone your server to alternate hardware (or LPAR) and attach the application/data disks to it.

I'm sorry, but it's not a nice place to be.

When you say that you want to migrate hd10opt, may I ask why? I would hope that this is mirrored, or has someone managed to remove the mirrors to give themselves lots of free space to grow in to? Are these real, local disks? If they are virtualised by something, does that protect you against hardware failure? It might be, but that can be done wrong too.

Can you share the output from:-

Code:

lsvg -p rootvg
lsvg -l rootvg
lspv -l hdisk0    (and hdisk1)
lscfg -vl hdisk0

Thanks, in advance,
Robin

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LEARN ABOUT DEBIAN

fribidi_set_mirroring

fribidi_set_mirroring(3)					Programmer's Manual					  fribidi_set_mirroring(3)

NAME

       fribidi_set_mirroring - set mirroring on or off

SYNOPSIS

       #include <fribidi.h>

       fribidi_boolean fribidi_set_mirroring(fribidi_boolean state);

PARAMETERS

       fribidi_boolean state
	      New state to set.

DESCRIPTION

       This  function  is used to turn character mirroring on or off.  Character mirroring is the act of replacing a mirrorable glyph (character),
       eg. Left paranthesis, with the matching glyph, eg. Right paranthesis, in a right-to-left resolved context.  If your rendering  engine  does
       mirroring itself, you may want to turn it off here.

       This flag is on by default.  This function is deprecated and only used with other deprecated functions.

RETURNS

       The new mirroring status.

SEE ALSO

       fribidi_charset_to_unicode(3),  fribidi_unicode_to_charset(3),  fribidi_parse_charset(3),  fribidi_shape_arabic(3),  fribidi_get_par_direc-
       tion(3),     fribidi_get_par_embedding_levels(3),     fribidi_reorder_line(3),	  fribidi_get_bidi_type(3),	fribidi_get_bidi_types(3),
       fribidi_get_bidi_type_name(3),	      fribidi_debug_status(3),	       fribidi_mirroring_status(3),	    fribidi_reorder_nsm_status(3),
       fribidi_set_reorder_nsm(3),	 fribidi_log2vis_get_embedding_levels(3),	 fribidi_get_type(3),	     fribidi_get_type_internal(3),
       fribidi_remove_bidi_marks(3),   fribidi_log2vis(3),   fribidi_join_arabic(3),   fribidi_get_joining_type(3),  fribidi_get_joining_types(3),
       fribidi_get_joining_type_name(3), fribidi_get_mirror_char(3), fribidi_shape_mirroring(3), fribidi_shape(3)

GNU FriBidi 0.19.2						  30 January 2006					  fribidi_set_mirroring(3)

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