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Full Discussion: Any tips to grow iSCSI LUN
Operating Systems AIX Any tips to grow iSCSI LUN Post 302517143 by bakunin on Tuesday 26th of April 2011 07:47:41 AM
Old 04-26-2011
Hello again, sorry for not answering earlier. It was easter holidays and i was vacationing abroad.

Quote:
Originally Posted by bbbngowc
to an AIX 5.3 box.
Did you check the technology level? AFAIR "chvg -g" came into AIX at some 5.3-TL, but i can't really remember which. You'll probably find that one easy enough, i suppose.

Quote:
Originally Posted by bbbngowc
The LUN is used directly. The default iscsi drivers are being used (if that's what you mean).
Yes, this is what i meant. I'm not sure if an iSCSI-connection and its drivers is/are able to propagate a LUN change to the AIX machine. Direct FC connections driven by SDD or PCM are able to do so, but that doesn't necessarily meant that the same is the case with iSCSI. Maybe what works over glass doesn't work over copper at all. We exclusively use FC connections, so i can't really help you there for lack of operating experience.

Have you tried a "bootinfo -s"? What does it report, the old or the new size? This should work regardless of the disk being in a VG or not, it questions the driver layer below the LVM.

I hope this helps.

bakunin
 

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stmfDevidFromIscsiName(3STMF)			   SCSI Target Mode Framework Library Functions 		     stmfDevidFromIscsiName(3STMF)

NAME
stmfDevidFromIscsiName - convert an iSCSI name to a stmfDevid structure SYNOPSIS
cc [ flag... ] file... -lstmf [ library... ] #include <libstmf.h> int stmfDevidFromIscsiName(char *iscsiName, stmfDevid *devid); PARAMETERS
iscsiName A character string of UTF-8 encoded Unicode characters representing the iSCSI name terminated with the Unicode nul character. devid A pointer to a stmfDevid structure allocated by the caller. On successful return, this will contain the converted device iden- tifier. On error, the value of this parameter is undefined. DESCRIPTION
The stmfDevidFromIscsiName() function converts an iSCSI name to a stmfDevid structure. It returns the devid as a SCSI name string identi- fier. RETURN VALUES
The following values are returned: STMF_ERROR_INVALID_ARGUMENT The value of iscsiName was not valid iSCSI name. STMF_STATUS_SUCCESS The API call was successful. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Committed | +-----------------------------+-----------------------------+ |MT-Level |Safe | +-----------------------------+-----------------------------+ SEE ALSO
libstmf(3LIB), attributes(5) SunOS 5.11 9 Jun 2008 stmfDevidFromIscsiName(3STMF)
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