In Chapter 5, We revealed you how to identify all the SATP guidelines

I got to divided the screenshots into four quadrants so that i possibly could reveal all the contents with the result. Right here, I’ve tried to cut it lower and listing only the lines i have to showcase. To take action, I utilized the after demand:

This demand lists all SATP principles right after which uses grep when it comes to sequence’s product, satp_alua, and ---. This leads to the productivity getting column headers and separator lines, that are the first two contours within the result. The remainder production concerts just the traces with satp_alua in them. Realize that the -i discussion produces grep to disregard the outcome.

In this production, observe that the EMC CLARiiON CX group is reported of the VMW_SATP_ALUA_CX plug-in, considering suits on Model column environment are DGC plus the declare selection place getting tpgs_on.

However, both LSI and IBM 2810-XIV are stated of the VMW_SATP_ALUA plug-in, centered on matches regarding provider line, the Model column, as well as the value of tpgs_on in state choice column.

NetApp can also be advertised by the VMW_SATP_ALUA plug-in, considering matches from the seller line in addition to Lancaster eros escort property value tpgs_on within the state choices line only. In this situation, the Model line wasn’t made use of.

IBM DS8000, and that’s design 2107-900 (placed in the production without dash), and IBM SVC (listed here as design 2145) were claimed by VMW_SATP_ALUA plug-in, on the basis of the Vendor and unit columns only, although the Claim Options line setting is certainly not tpgs_on.

The rest of the rule enables VMW_SATP_ALUA to claim products with any merchant or Model column advantages, as long as the Claim Options line appreciate was tpgs_on. Therefore any selection maybe not placed in the preceding formula that comes back a nonzero benefits for the TPGS field for the inquiry reaction sequence will get said by VMW_SATP_ALUA. You could think of your as a catch-all ALUA state guideline that promises units on all ALUA arrays which are not explicitly indexed by provider or unit in SATP claim rules.

Checking Equipment’ ALUA Configurations

ALUA configurations were of LUNs in combination with TPGs. To record these configurations, you can easily work these command:

An Example from an EMC VNX or CLARiiON CX Array

This result shows the space range means area set to VMW_SATP_ALUA_CX, the just like the VMW_SATP_ALUA plug-in with additional laws to take care of specific commands certain to CLARiiON CX ALUA arrays.

The productivity in addition demonstrates the space range means tool Config line, wrapped for readability, including numerous components:The very first collection of curly brackets, , includes initiator registrationa€“specific setup. This is exactly particular to EMC VNX in addition to CLARiiON family of arrays. In this particular set, two options are detailed:

navireg=on-This means that NaviAgent enrollment choice is allowed on this subject number. They registers the initiator because of the VNX or CX range if it is not currently subscribed. Keep in mind that you should check out the initiator record regarding the array to make certain that Failover setting is scheduled to 4, which allows ALUA with this initiator. (You can find additional information with this in part 7.)

ipfilter=on-This option filters the host’s internet protocol address so that it is maybe not visually noticeable to the storing array. (you are going to discover more about this in part 7.)

The ALUA AAS control function choices are confined in one minute set of curly brackets, within which will be another nested pair of curly brackets for TPG’s AAS setup. They are ALUA AAS administration setting choice:

Explicit_allow=on-This means the variety try set up allowing the SATP to exercise its explicit ALUA capacity when the requirement occurs (as an example, in the eventuality of a failed controller).

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