Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

Disk Space Calculation For HP EVA 4400

Posted on 2013-02-06
3
Medium Priority
?
1,862 Views
Last Modified: 2013-02-11
I have an HP EVA 4400 with 2 disk groups
1 disk group = 24 x 400
2 disk group = 24 x450

I need to add more storage and was going to add in

12 x 450 g Disks

How much extra storage will i have if i use RAID5?
Will i have to create a new disk group 3?
0
Comment
Question by:dougdog
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 5

Expert Comment

by:wshty
ID: 38859145
in corporate environment i'd very strongly suggest that you use raid 6 instead or raid 5!

there is always the possibility of 2 drives failing (while rebuild for example) - you wouldnt want that if you could avoid it :-)


for your info:

raidcalculator:
http://www.raid-calculator.com/default.aspx
0
 

Author Comment

by:dougdog
ID: 38859196
but this is different in an eva 4400
its not the rule of just loosing 1 disk
eva works different
0
 
LVL 5

Accepted Solution

by:
wshty earned 2000 total points
ID: 38860001
sorry, it seems like i left my brain at home today....

1. yes you either need to create a new disk group or merge them with diskgroup 2
it is recommended that diskgroups contain only of disks the same size
also: the less diskgroups present, the better. but watch out for the RPMs on the drives.
if they differ in the RPMs then i'd suggest that you use an additional disk group

2. as for the storage capacity using vRaid5:
please refer to this neat little EVA Calculator:
http://hansdeleenheer.blogspot.de/2011/07/hp-eva-capacity-and-performance.html
 

regards
0

Featured Post

Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Finding original email is quite difficult due to their duplicates. From this article, you will come to know why multiple duplicates of same emails appear and how to delete duplicate emails from Outlook securely and instantly while vital emails remai…
When we purchase storage, we typically are advertised storage of 500GB, 1TB, 2TB and so on. However, when you actually install it into your computer, your 500GB HDD will actually show up as 465GB. Why? It has to do with the way people and computers…
This video Micro Tutorial explains how to clone a hard drive using a commercial software product for Windows systems called Casper from Future Systems Solutions (FSS). Cloning makes an exact, complete copy of one hard disk drive (HDD) onto another d…
This video teaches viewers how to encrypt an external drive that requires a password to read and edit the drive. All tasks are done in Disk Utility. Plug in the external drive you wish to encrypt: Make sure all previous data on the drive has been …

715 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question