EVA3000 Expand Disk Capacity

[tahir123]

Hi, do you mean that regards to RSS if i have added 2 harddrive i am going to have problem ?

second regarding the performance issue who many % performance will be decrease after adding 2 hdd ?

third who i will do update controller firmware with HDD bundle ?

please explain me more.

[IBaltay]

Hi,
1. there will be no perf degradation after the 2 new disks, only the RSS algorithm will add them to the existing RSSs, (2 of them could have 9 members or one 10 members).
2. The controller firmware upgrade disk firmwares upgrade included should be handled by local HP support team.

[tahir123]

Thanks alot guys, i have intalled the harddrive, and level has completed disks are now in disk group and more space is showing in the Disk Group

i have one more question now i navigate the Vdisk where is showing

your requested space = 600GB
availabel = 600GB

i am going to add additional 250GB in the same disk group

please can some one help me i will entered there 600 + 250 mean 850GB or only i type there 250GB and click it save that will be included in exiting 600 GB

the help will be appriciated

[Uwe Zessin · Accepted solution]

When you want to increase a virtual disk's size, you enter the NEW SIZE and press [Save changes], not how many GigaBytes you want to add.

If I remember correctly, you cannot SHRINK a virtual disk on an EVA3000 anyway, so it does not do any harm when you enter a smaller value than the current capacity (you just get an error message), but on a modern EVA you really, really can destroy data if you do not read the messages...

[tahir123]

Hi Zessin, you mean i will enter new size that will be 850GB and click on save who long it will take to reserve new space or immediately.

second please you are saying if i will enter size smaller then current it will not destroy the data just give me the error message.

third when i add disk in disk gourp it has take 3 hours it is the normal time.

i was confused first i add 1 disk before the level complete 100% i add second disk in the disk group is it the rigth way or wrong.

please can you assist me

[Uwe Zessin]

Hm, I'd say it will take a few minutes to expand the virtual disk by 250 GByte. The EVA uses quite complex data structures to manage the virtualization. It takes some to go though the meta-data. Let's not forget that it must be in a way that a crash does not create any inconsistencies.

Yes. Even if you had a system that allowed a virtual disk shrink it WILL give you a warning and you have to confirm it.

I'll attach a partial screenshot with the error message from a system that does not allow a shrink.

You can add multiple disks at once to a disk group. Insert the disks one by one. Then go to the Disk Group's properties page and press [Add disks]. CV-EVA will show you how many disk drives you can add at maximum, but you can enter any value between 1 and the maximum (ok, I don't know what happens if you enter 0 or a negative value - anybody wants to try? ;-)

[tahir123]

Hi, Guys with all of your help i have successully increase the capacity it's showing in Vdisk but i am not able to see on windows server 2003

is it i have to click again on Disk Presendt in EVA ?

or i have to check only the operating sytem ?

[Rob Leadbeater]

Hi,

No you shouldn't have to represent the disk...

In order to get Windows to see the extra capacity you need to extend the file system with the DISKPART utility.

http://support.microsoft.com/kb/325590

Cheers,

Rob

[Uwe Zessin]

Right, there is no need fiddle with the disk presentation.

- Open the Windows Disk Management application (diskmgmt.msc).

- Right-Click "Disk Management" (on the left side in the console tree) and use "Rescan Disks".

- Now you should see unpartitioned space at the end of the expanded disk.

- If you have opened an RDP/Terminal Services session, you might have to logout and login again to see the result.

- Run DISKPART and extend the partion and file system as described in the MS knowledge base article.

- Enjoy the new free space ;-)

[tahir123]

Thanks Guys, i have completed the tasks with you help.

i am going to prepare for second face i am not sure either i will continue the same thread or open new thread for that job as long as part for the same system.

i neet you lot of help even i am going to take EVA management course from tomorrow. but i don't think that will be covered deeply for my next phase that is adding new drive enclosure with 14 x 146 GB FC HDD i will appriciate any help to provide me step by step to implementation in the live environment along all pre & post deep technical steps i have to taken for successful implementation for new enclosure.