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suppress lun on MSA 1000

 
Stéphane LOUIS
Occasional Visitor

suppress lun on MSA 1000

Hey,

I've a MSA 1000 with 2 controllers.

I wanna suppress 1 LUN without suppress any data on others LUNS.

How can I do ? (I don't find any menu to suppress the LUN)
5 REPLIES 5
Uwe Zessin
Honored Contributor

Re: suppress lun on MSA 1000

It is called "LUN masking", or in array-specific term: "Selective Storage Presentation" (SSP).

But watch out! To use it, you must explicity grant access to all other LUNs.
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James Muell
Valued Contributor

Re: suppress lun on MSA 1000

RE: But watch out! To use it, you must explicity grant access to all other LUNs.
That is not correct. IN SSP all luns are "available" to all hosts but need to be "Assigned to a specific host before they get access. What you do have to do to use SSP is enable it. It is disabled by default.
Uwe Zessin
Honored Contributor

Re: suppress lun on MSA 1000

What I meant is:
when you use SSP to control access for a single unit, it activates the ACL and this automatically disables access on all other units.

So you disable access to the unit you want to 'suppress', but you need to enable access for all others.
At least that is how it works on the CLI.
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STef
Occasional Visitor

Re: suppress lun on MSA 1000

In fact it is possible to suppress the last lun of each array.

I would like to suppress the first lun of an array without suppressing any another lun...

STef
Uwe Zessin
Honored Contributor

Re: suppress lun on MSA 1000

> In fact it is possible to suppress the last lun of each array.

Not true, unless I have misunderstood you. You can mask any disk unit from any server.

If by 'first LUN', you mean the controller LUN that is mapped at LUN address 0 - this can't be masked, because it is required for in-band management and SCSI-3 REPORT LUNS.
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