Adding Storage to a System File. Post: 302495453

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Operating Systems AIX Adding Storage to a System File. Post 302495453 by aix-guy on Thursday 10th of February 2011 10:13:00 AM

02-10-2011

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Ok with the AIX5.3ML11 (> ML8 is were you need to be)
you have 36096 megabytes (36GB) free in the vg to allocate without requiring the need to more disk.
you said you needed approximate 36GB to add so you are going to add it and it will go to these disk drives.

hdisk64 active 199 70 00..00..00..30..40
hdisk65 active 199 71 00..00..00..31..40
hdisk66 active 199 70 00..00..00..30..40
hdisk67 active 199 71 00..00..00..31..40

Since this is SAN disk I will assume that all the raid is handled by the back end. and you are not doing mirroring

with all that said we are going to let AIX find and place the required PP's as needed. But I do have 1 more question.
Why are the disk drives we are going to use only 199 PP's but all the others are 399 PP's.
The SAN should have allocated the same disk size to you for usage.
SO is this correct disk for the system?

Anyway you can do this in smit or

Code:

chfs -a size=+9G /sapdata5qa  (I am also assuming that this is the File System Mount and not the LV)

I would probably just round the 7.75 and the 7.50 GB's to 8.
But if you want the exact you will do the GB size the another for Meg size.

And like all things be sure you have a valid backup before you do this.

aix-guy

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mkqdisk

mkqdisk(8)						      Quorum Disk Management							mkqdisk(8)

NAME

       mkqdisk - Cluster Quorum Disk Utility

WARNING

       Use of this command can cause the cluster to malfunction.

SYNOPSIS

       mkqdisk [-?|-h] | [-L] | [-f label] [-c device  -l label] [-d [-d ...]]

DESCRIPTION

       The mkqdisk command is used to create a new quorum disk or display existing quorum disks accessible from a given cluster node.

OPTIONS

       -c device -l label
	      Initialize  a new cluster quorum disk.  This will destroy all data on the given device.  If a cluster is currently using that device
	      as a quorum disk, the entire cluster will malfunction.  Do not run this on an active cluster  when  qdiskd  is  running.	 Only  one
	      device  on  the  SAN should ever have the given label; using multiple different devices is currently not supported (it is expected a
	      RAID array is used for quorum disk redundancy).  The label can be any textual string up to 127 characters - and is therefore  enough
	      space to hold a UUID created with uuidgen(1).

       -f label
	      Find the cluster quorum disk with the given label and display information about it.

       -L     Display information on all accessible cluster quorum disks.

       -d     Increase debugging level.  Specify multiple times for more information.  Currently, specifying more than twice has no effect.

SEE ALSO

       qdisk(5), qdiskd(8), uuidgen(1)

								     July 2006								mkqdisk(8)