IT Infrastructure blog

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 10, 2012

MS SQL Connectivity Error – A network-related or instance-specific error

I have installed SQL Managemant studio in my windows XP machine. I was trying to connect one of my SQL server. OOPS …the below error pop up

 

 

 

 

 

 

Below three steps i found to resolve this issue.

1) Check the SQL Server Browser service is started in SQL server ( If not start this service. you have to restart the SQL server Service as well)

 

 

2) Check TCP/IP is enabled in SQL Server Configuration Manager ( Start –> Programs –> SQL Server 2008 –>Configuration Tools. If it’s disabled make it enable.

 

 

 

 

 

3) Give the Servername\instance name while connecting from SQL Management Studio.

 

 

 

 

 

 

 

 

 

 

Hope you will be able to connect the SQL server now. I was able to connect when i follow above 3 steps.

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.

 

June 3, 2012

Windows Server 2012 RC available now

Filed under: Latest Stuffs — Akther @ 12:57 pm

Hey Friends

Windows Server 2012 RC is available for download now. Both ISO and VHD versions are available. Test it and see the new features.. Enjoy the learning and ready to move to next change.

http://technet.microsoft.com/en-US/evalcenter/hh670538.aspx?ocid=&wt.mc_id=TEC_108_1_33

The few features set that Windows Server 2012 Release Candidate (RC) offers

  • Takes you beyond virtualization
  • Delivers the power of many servers with the simplicity of one
  • Opens the door to every app on any cloud
  • Enables the modern work style

Here is the product page

http://www.microsoft.com/en-us/server-cloud/windows-server/2012-default.aspx

June 2, 2012

MS DPM 2010 – First look

Filed under: Microsoft DPM 2010 — Akther @ 4:01 pm
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It’s always good for an IT infrastructure person to know multiple Backup softwares. Yes, I too have a chance to get in touch with Microsoft DPM 2010. Here is my first look with DPM 2010. I hope i could be able to deliver more DMP blog post in coming days.

It’s purely designed for Microsoft Infrastructure. But cerain Linux flavours can be backup if it’s running in Hyper-V

DPM supports Disk, Tape and Cloud based Backup and Recovery

DPM can integrate with MS SCOM 2007

Supports Bare Metal Restore  ( Imaging)

A Single DPM 2010 Server can handle 80 TB per Server

DPM can backup 100 Servers

DPM can backup to 2000 SQL Databases

DPM is easy to setup and not complicated compared to Symantec NetBackup

Most importent it’s license scheme is very easy. If you buy DPM enterprise License you can backup MS SQL, Exchange, Sharepoint etc. While if it’s Netbackup we have to buy separate agent license. License wise DPM 2010 is inexpensive.

Some of the dis advantages i could see with this product is we can’tt take VmWare enviornment backup. And DPM will not support Granular recovery of single  Email from MS Exchange Server. Symantec will support both and we hope in later Microsoft will think about this.

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