Hi

Could you post a vxprint or vxdisk list, showing the examples of the tags ? I just wanted to check if these are disk tags or something else (disk media name, Disk access Name)

thanks

tony

You don't need to reattach disks to change tags -  you just use rmtag and settag whilst the volumes are in use (mounted) - example:

vxdisk -g diskgroup rmtag site=T disk00
vxdisk -g diskgroup settag site=Y disk00

 

Mike

 

If you meant can you change the diskmedia record - you can do this too - I think the only thing you can't change online is the volume name as this changes the access path, but even this does not require you to reattach disk (you would just umount, rename volume and mount using new path).  To change the diskmedia record name, you use vxedit - example:

vxedit -g testdg rename disk00 disk00atY

Mike

More info:

NODE2:~ # vxdisk listtag
DEVICE          NAME                            VALUE
ibm_ds8x000_1f00        site                            Y
ibm_ds8x000_1f01        site                            T // should be Y
ibm_ds8x001_8a02        site                            T
ibm_ds8x001_8a03        site                            T
ibm_ds8x001_8b00        site                            T
ibm_ds8x001_8b01        site                            Y // should be T
ibm_ds8x002_ec00        site                            Y
ibm_ds8x002_ed00        site                            Y

NODE2:~ # vxdg list
NAME         STATE           ID
shareddg     enabled,cds,siteconsistent 1339422132.11.NODE1

NODE2:~ # vxlist | grep ^dg -B1
TY   DISKGROUP   IMPORT    STATUS         SIZE      FREE ID
dg   shareddg    private   enabled     339.27g   139.75g 1339422132.11.NODE1

OK, I understand that I can retag the disks online. If I execute:

vxdisk -g shareddg rmtag site=T ibm_ds8x000_1f01
vxdisk -g shareddg settag site=Y ibm_ds8x000_1f01

Would the data of this disk copy to the rest of disks of site T to keep the mirror??? and if the answer is yes... is it possible because of the free space of the dg (I mean in that site)???

Retagging disks will not move any data, but I see where you are coming from now, as the retag will probably fail if the retag would mean you have 2 plexes of the same volume with the same tag, and this depends on your volume layout, so please post "vxprint -thg shareddg".

If you need to move data the process will probably be something like:

1. Disable sites/tags
2. Move data (online) using subdisk move (or add third mirror and remove incorrect one)
3. Enable sites/tags

Can you also provide output of "vxdg free"

Mike