mkvg on iscsi disk won't work (6.1) Post: 302420571

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Operating Systems AIX mkvg on iscsi disk won't work (6.1) Post 302420571 by zaxxon on Wednesday 12th of May 2010 03:45:26 AM

05-12-2010

Registered User

We are not using iSCSI so I can't help that much, sorry - found those two articles on how to implement iSCSI:

SVC Information Center

This one on an example using CISCO hardware and a DS4000. As far as I could understand from other sites, the step where you have to define iSCSI targets in /etc/iscsi/targets and the chdevs etc. will be the same for other models of hardware:
Implement iSCSI on AIX

And one more:
Help -

If you get it working, leave a note here what did the trick, ty.

Not sure how good your german is - here is one more describing what to do:
Stor IT Back - herstellerunabh�ngige Beratung

Some translation of it:

Since AIX 5.2 iSCSI is implemented to the OS.
Need a working TCP/IP connection to the storage.
Is a ping to the iSCSI target successful, you can the software initiator(?) be installed.
With "smitty -> chgiscsisw" the iSCSI-initiator will be created.
Further configuration has to be done in /etc/iscsi/targets.

Here an example performance tuning for iSCSI he describes in his article:

Quote:

ifconfig en3 down
ifconfig en3 detach

chdev -a ent3 -a jumbo_frames=yes
chdev -l en3 -a tcp_recvspace=262144
chdev -l en3 -a tcp_sendspace=262144
chdev -l en3 -a rfc1323=1

ifconfig en3 up

At the end he points at Implement iSCSI on AIX too.

zaxxon

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LEARN ABOUT DEBIAN

ocf_heartbeat_iscsi

OCF_HEARTBEAT_ISCSI(7)						OCF resource agents					    OCF_HEARTBEAT_ISCSI(7)

NAME

       ocf_heartbeat_iscsi - Manages a local iSCSI initiator and its connections to iSCSI targets

SYNOPSIS

       iscsi [start | stop | status | monitor | meta-data | validate-all]

DESCRIPTION

       OCF Resource Agent for iSCSI. Add (start) or remove (stop) iSCSI targets.

SUPPORTED PARAMETERS

       portal
	   The iSCSI portal address in the form: {ip_address|hostname}[":"port] (required, string, no default)

       target
	   The iSCSI target IQN.  (unique, required, string, no default)

       discovery_type
	   Target discovery type. Check the open-iscsi documentation for supported discovery types.  (optional, string, default sendtargets)

       iscsiadm
	   open-iscsi administration utility binary.  (optional, string, default iscsiadm)

       udev
	   If the next resource depends on the udev creating a device then we wait until it is finished. On a normally loaded host this should be
	   done quickly, but you may be unlucky. If you are not using udev set this to "no", otherwise we will spin in a loop until a timeout
	   occurs.  (optional, string, default yes)

SUPPORTED ACTIONS

       This resource agent supports the following actions (operations):

       start
	   Starts the resource. Suggested minimum timeout: 120.

       stop
	   Stops the resource. Suggested minimum timeout: 120.

       status
	   Performs a status check. Suggested minimum timeout: 30.

       monitor
	   Performs a detailed status check. Suggested minimum timeout: 30. Suggested interval: 120.

       validate-all
	   Performs a validation of the resource configuration. Suggested minimum timeout: 5.

       methods
	   Suggested minimum timeout: 5.

       meta-data
	   Retrieves resource agent metadata (internal use only). Suggested minimum timeout: 5.

EXAMPLE

       The following is an example configuration for a iscsi resource using the crm(8) shell:

	   primitive p_iscsi ocf:heartbeat:iscsi 
	     params 
	       portal=string 
	       target=string 
	     op monitor depth="0" timeout="30" interval="120"

SEE ALSO

       http://www.linux-ha.org/wiki/iscsi_(resource_agent)

AUTHOR

       Linux-HA contributors (see the resource agent source for information about individual authors)

resource-agents UNKNOWN 					    03/09/2014						    OCF_HEARTBEAT_ISCSI(7)

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