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Full Discussion: "Metadevice" on IBM storage
Operating Systems AIX "Metadevice" on IBM storage Post 302757221 by bakunin on Thursday 17th of January 2013 08:04:28 AM
Old 01-17-2013
A "LUN" from any SAN device is just a hdisk device for AIX. As you cannot combine several physical hdisks to one with AIX methods (you can create RAID sets, etc., but this still leaves a hdisk to be a hdisk) you can't create a big LUN from several smaller ones likewise.

You can. of course, create a VG and use the space of the hdisks as if it were one.

I hope this helps.

bakunin
 

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FS_CHECKVOLUMES(1)					       AFS Command Reference						FS_CHECKVOLUMES(1)

NAME
fs_checkvolumes - Forces the Cache Manager to update volume information SYNOPSIS
fs checkvolumes [-help] fs checkv [-h] DESCRIPTION
The fs checkvolumes command discards the table of mappings between volume names and volume ID numbers that the Cache Manager stores in memory and uses when fetching data from volumes. The next time an application requests AFS data, the Cache Manager must contact the Volume Location (VL) Server for volume location information, and then an appropriate file server machine for the actual data. The Cache Manager updates the table of mappings periodically (by default, hourly), but this command is useful if the issuer knows that a volume's name has changed, or that new read-only replicas of a volume have been released, because issuing it forces the Cache Manager to reference the changed volume. OPTIONS
-help Prints the online help for this command. All other valid options are ignored. OUTPUT
The following message confirms that the command ran successfully. All volumeID/name mappings checked. PRIVILEGE REQUIRED
None COPYRIGHT
IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved. This documentation is covered by the IBM Public License Version 1.0. It was converted from HTML to POD by software written by Chas Williams and Russ Allbery, based on work by Alf Wachsmann and Elizabeth Cassell. OpenAFS 2012-03-26 FS_CHECKVOLUMES(1)
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