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Cascade 2x MSA30 with DL580 sever.(Expansion Storage Space)

 
Eddie Faizal
Occasional Visitor

Cascade 2x MSA30 with DL580 sever.(Expansion Storage Space)

Hi,All.
I have a problem to be solve.

Equipments invovled:
1x DL580 with smart array 532.Running on Win2K server OS.
2x MSA30 enclosure.
MSA30(A)= 14x72GB HDD.(Exisiting w/1 logical Drive running with RAID 0+1)
MSA30 (B)= 06x 72GB HDD.(New enclosure).

My question are:
1)To expand & extend the exisiting logical drive.
2)Can i cascade both MSA30 A+B together?
3)Do i need to upgrade the exisiting Controller card?If do what model recommended?
4)If upgrade controller card does the exisiting logical drive data will be lost?
5)The exisiting logical drive run on BASIC disk not DYNAMIC disk.

Any feedback would be appreciated..
Thanks in advance...
cheers




9 REPLIES 9
Torsten.
Acclaimed Contributor

Re: Cascade 2x MSA30 with DL580 sever.(Expansion Storage Space)

You cannot daisy chain the chassis, because all scsi ids must be unique. You cannot have more than 15 devices on a scsi bus in general.

Hope this helps!
Regards
Torsten.

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Eddie Faizal
Occasional Visitor

Re: Cascade 2x MSA30 with DL580 sever.(Expansion Storage Space)

Thanks for reply.
So what should i do,to combine both MSA30?
Pls advise.
Torsten.
Acclaimed Contributor

Re: Cascade 2x MSA30 with DL580 sever.(Expansion Storage Space)

purchase a new raid controller or use another free channel.

Hope this helps!
Regards
Torsten.

__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.

__________________________________________________
No support by private messages. Please ask the forum!

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Andy_Stor
Valued Contributor

Re: Cascade 2x MSA30 with DL580 sever.(Expansion Storage Space)

Hi Eddie,

SA532 is a dual channel controller, but with one internal and one external channel, you can connect only one MSA30 to the external channel. You can upgrade the controller to a 6402 or a 6404 controller and connect both the MSA30 to 2 different channels or you can buy one more single channel compatible SA and connect the second MSA30 to that, Check the quickspecs of the MSA30 before buying the controller, so that you get a supported controller.

Check the below link for quickspecs.

http://h18004.www1.hp.com/products/quickspecs/11738_na/11738_na.html

Hope it helps
Andy
Eddie Faizal
Occasional Visitor

Re: Cascade 2x MSA30 with DL580 sever.(Expansion Storage Space)

Thks Andy for reply.

So if i upgrade to SA 6402.
1)I can hook up both MSA30 A+B into DL580.
2)Can i extend & expand the existing logical drive on MSA30(A) without losing any data?

Thanks in advance...
cheers
Andy_Stor
Valued Contributor

Re: Cascade 2x MSA30 with DL580 sever.(Expansion Storage Space)

Yep thats true, you can hook up 2 MSA30s on the SA6402, but one suggestion if u gonna populate all the slots in both the MSA30`s then there might a perf hit on the controller as there would diff channels but again single controller also the controller will become as a SPOF for both the JBODs, if you already have one controller would suggest you to go for one more single channel and connect the sec MSA30 to it.
How you want to expand the array accross the JBODs or in the single JBOD by adding more disks attach an ADU report if possible and also share some info on what config you need.

Thanks
Andy
Eddie Faizal
Occasional Visitor

Re: Cascade 2x MSA30 with DL580 sever.(Expansion Storage Space)

Hi,Andy.
Here is the scenario:

Existing config:
1.1x DL580 server connected to MSA30 box with 14x 72GB Hdd.(RAID 0+1)
2.1x logical drive created as drive D on MSA30 with 516096mb space.Almost full.
3.I need to expand Drive D space,so i bought new MSA30 box with 6x 72GB Hdd.


New config:
1.To expand & extend the existing logical drive D,without losing any data.
2.On OS level i can see both array as 1 pysical drive.

To archive new config i need to do?


Andy_Stor
Valued Contributor

Re: Cascade 2x MSA30 with DL580 sever.(Expansion Storage Space)

In the above scenario, you need to connect both the MSA30s to a single controller.

Now 2 things involved in this.

1) You need to check whether the same Array or LUN can be migrated from the existing SA532 to the new 6402 controller I mean to say when u connect the MSA30 to the SA6402 then it should detect the logical configuration.
2) When you expand the array and extend the logical drive the new space added to the array will come up as an unallocated space in the disk mamagement it won`t add up to the existing Volume. So you need to use some Microsoft tools to get it working or delete the existing volume and recreate it with the new space.

I strongly recommend to have the Full BACKUP OF THE VOLUME BEFORE DOING THIS PROCESS.

Thanks
Anand
Eddie Faizal
Occasional Visitor

Re: Cascade 2x MSA30 with DL580 sever.(Expansion Storage Space)

Hi, Andy.

Sorry for late reply.BTW thanks for the advise.
Problem solve by upgrade the SA card.
Both MSA30 successfull connected to DL580 server.Expansion & extending of existing logical drive succeed without losing any data.Thanks again.