IT Infrastructure blog

October 11, 2012

Dell MD3200i Installation

Filed under: DELL Storage — Akther @ 10:37 am
Tags: ,

In this article we will see how to provision a Dell 3200i iSCSI storage device in network.

This device is a dual controller and having 4 iSCSI ports each controller and 2 managment port for both controller. ( for managing device)

1. Rack Mount the device and connect power. It’s a 2u device and 12 bay slot to add hard disk.

2. Connect two cables from each managment port to one of the server Lan1 and Lan2. To do the initial configuration of storage. by default ip address of managment ports are 192.168.128.101 and 102. Same subnet ip given to LAN1 and LAN2 of the servers.

Installed Dell resource media kit in server ( shipped with device). By using Dell Modular disk manager utility (MDSM) will do the initial configration.

3. Add Storage Array .

Open MDSM from management server where managment port are connected.

 

 

 

 

 

 

 

Below ip addresses are the default management port ip address. We are using out-of-band management method to configure the device. Out of band means using manament port for device managment.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Once it added we can see the Array

 

 

 

 

 

Right click,  select Manage array to configure the device

 

 

 

 

 

 

 

 

 

 

 

Dash board of the device. In Setup tab you can configure password, iSCSI port ip address, Management port ip address etc

 

 

 

 

 

 

 

 

 

 

 

 

Assign ip address to iSCSI ports

Setup–>Configure iSCSI host ports

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

As per your requirement from this window you can configure ip address to all iSCSI ports ( from drop down window)

Now the MD3200i is ready. In coming artilce we will see how to create a Disk Group, Virtual Disk and LUN

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June 11, 2012

RAID 5 reconfiguration in Dell Powervault MD1000 Storage

Scenario

Currently 12 Hard Disk (SAS) are occupied in Storage box. We are going to add 3 more disks to increase the capacity of existing virtual disk ( It’s a DAS box )

Existing virtual disk contains 5 Hard disk. And 2 more going to add to increase  some space. i.e reconfiguring existing RAID-5

Steps need to taken

Insert disks in to Storage box physically. Once it insert we can see this disk status is ready. ( If you see disk status Foreign please refer below link to troubleshoot

 

 

 https://exchangeengine.wordpress.com/2012/06/09/how-to-clear-foreign-disk-in-dell-powervault-md1000-storage/ 

Click Virtual Disk

 

 

 

 

 

Then select the Virtual disks that you want to re configure RAID 5 ( increase space)

 

 

 

Click Reconfigure from drop down list

 

 

 

 

 

 

 

Then we can see the newly inserted disk there in left side and add these disks in to virtual disk ( in our case we added 2 disks)

Next step we need to choose the RAID level . ( Our case existing is  RAID-5 but we can change to RAID6 or RAID O here)

 

 

 

Next screen we can see the previous and current disk numbers and size. Disk 12 and 13 are the new disks. See the size as well

 

 

 

 

 

 

 

 

Once it confirmed click ok . it will take hours to complete the RAID re configuration. Once it complete successfully you can see the new space in virtual disk.

Next Step

You could able to see this disk in windows host (disk management ) as unallocated.

 

 

If it’s windows 2008 R2 server then you can extend that disk just right click and extend. Other wise you have to use Diskpart command line utility to extend

 

 

 

 

Disk Part

Here is the example below how we can use Diskpart to extend the disk from command line ( below screenshot is not for this particular post. For this i have extended disk from Disk Management GUI)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Now we can see the extended disk space in Disk Managment

 

 

Hope this post has been informative for you. Thanks

 

 

 

 

 

June 9, 2012

How to clear Foreign Disk in Dell PowerVault MD1000 Storage

Filed under: DELL Storage — Akther @ 12:51 pm
Tags: ,

We were in a cituation that needs to extend the virtual disk capacity which is pulled from Dell MD 1000.

So we got three  new 300 GB SAS drives and going to insert them in to empty slot in MD1000. Before doing any reconfiguration in MD1000 you must take the full back up of the data where you are re sizing.

Inserted 3 HDD in to empty slot and went to Dell Open Manager to see the status of these disk. It has to be appear as un assigned disk.

But one of the disk is showing Foreign Disk . And we can’t use this disk until it become normal data disk. In order to get rid of this we need to clear the attribute from PERC. Here is the steps

Go to Storage –> choose PERC 6/E Adapter  –> On the Properties tab click on “Information/Configuration”

 

 

 

 

 

 

 

 

 

 

In the “Controller Tasks” drop down of Avaialble Tasks you should see an option for “Clear Foreign”. Select this–> Click on “Execute” which is just below the drop down.

 

 

 

 

 

 

 

 

 

 

Yup. It’s become normal disk and we can use this to add in to existing RAID.

 

May 27, 2012

Dell PowerVault MD 1000 Storage – WalkThrough

Filed under: DELL Storage — Akther @ 2:35 pm

I have got a chance to configure Dell MD 1000 DAS ( Direct Attach Storage) Array recently. Would like to point out few of the features  and other stuffs here about this wonderful product.

 

 

 

 

 

This storage is usefull if you want more storage space and you dont have enough budget to roll out a iSCSI or FCP storage infrastrucutre.

– Contains 15 drives ( SAS or SATA) can be able to expand up to 45 disks ( The enclosure can be daisy-chained with up to two additional enclosures)

– There are two modes in this storage , below are the short description

Unified Mode

In unified mode, a SAS host ( Server) can communicate with up to 15 drives in the enclosure via a single EMM, or
up to 45 drives in three enclosures daisy chained together.

Split Mode

In split mode, the enclosure is split into two virtual groups, with up to eight consecutive drives (slots 7-14) controlled by the primary (left) EMM. The remaining drives (slots 0-6) are controlled by the secondary (right) EMM. That means we can assign one group in to one host and another in to second host. Splitting the storage space.

 

 

 

 

 

 

 

 

 

 

You must select either mode using the enclosure mode switch on the front panel of the enclosure before powering on. If you are setting mode after power on need to reboot the enclosure again.

 

 

 

 

 

– There are two ports on the rear side of enclosure. These ports are using either to connect to host ( server) or to expand the enclosure.

In Port : Provide SAS connection for cabling to host ( server) or next upchain expansion enclosure (unified mode only).

Out Port : Provide SAS connection for cabling to the next downchain expansion enclosure in a daisy chain
(unified mode only).

 

 

 

Enclosure Alarm : An audible alarm will be activate if any of the following component fail. It will sounds continusoly. If an any non critical errors then the alarm sounds every 10 seconds.

a) Two or more fan blowers have failed or a power supply/cooling fan module is not installed.

b) One or more temperature sensors are in critical range.

 

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