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

x
?
Solved

XP only detects 30.738GB out of my 37GB SATA Raptor

Posted on 2004-10-17
18
Medium Priority
?
285 Views
Last Modified: 2010-04-03
XP-Pro (and disk manager) only detects 30.738 out of my 37GB Hard Drive, with no other free or unallocated space.

System:

37GB Raptor SATA Drive
ASUS P4C800 Deluxe with RAID
Drive in RAID channel set up as mirror.
 
Partition Magic 8.0 only sees 30GB as well.  
The onboard Promise RAID controller properly detects 37.019 GB but at the rebuild mirror screen, it only shows only a 30.738 mirror.

Everything works fine but would like to get those extra 7 GB!
0
Comment
Question by:Montabahn
[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
  • 6
  • 5
  • 3
  • +2
18 Comments
 
LVL 1

Expert Comment

by:rwweyers
ID: 12335478
That is the Overhead for a raid Mirror You will find that a 73 gig Segate on a raid card will only show as 69.8 gb This  is a normal occurance for SATA and SCSI
0
 

Author Comment

by:Montabahn
ID: 12335780
Not so!  7 GB is way too large for overhead (Read my numbers again).  
Besides, I have an identical system, and Partition Magic (and XP) see the 37GB Raptor drive in total.
0
 
LVL 1

Expert Comment

by:rwweyers
ID: 12335869
hmmm
Both are set up identically to the last letter.?
Then you might have a bios issue on the card I had the same thing happen to me but I still lost some to overhead.  Check the bios on both SATA cards and reflash the one that is giving you problems
0
Concerto Cloud for Software Providers & ISVs

Can Concerto Cloud Services help you focus on evolving your application offerings, while delivering the best cloud experience to your customers? From DevOps to revenue models and customer support, the answer is yes!

Learn how Concerto can help you.

 

Author Comment

by:Montabahn
ID: 12335909
When I set the machine up one year ago, I purposely wanted it to stay under 30GB.  I cannot remember how I did that.  Is there a way to configure, ghost, or format a hard drive so it is recognized smaller than it actually is?  There must be, because I did it.  Now the question is, how do I reverse it.  I thought PartitionMagic wouuld work, but it only recognizes the Raptor as a 30 Gigabytes Drive with no room for expansion.    
0
 
LVL 1

Expert Comment

by:rwweyers
ID: 12335993
Un mirror the drives then destroy the data on the second drive.  Then ghost the data to ne drive that has been formatted at its largest size and then place it as the primary boot off it and remirror.
0
 

Author Comment

by:Montabahn
ID: 12336074
"Un mirror", do you mean delete the Raid array?  
How do I format the drive to its "largest size"?
You say I need to "destroy the data on the second drive."  Won't ghosting or formating destroy the data?

I think you may be on to something though.

Will ghost work on SATA?  I think it may if I plug the drive into a non-RAID SATA channel.
0
 
LVL 32

Expert Comment

by:_
ID: 12336137
Did you set a jumper on the HD to limit it to less than 32gig?
Limit it with FDISK to 30gig?
0
 

Author Comment

by:Montabahn
ID: 12336301
Not with jumper.  
It has been a year since I used Fdisk and not very familiar with it.
Can you limit drive size with Fdisk?
0
 
LVL 32

Expert Comment

by:_
ID: 12336345
Yes. Just tell it how big a partition you want, and let the rest of the drive stay unallocated.
0
 
LVL 15

Expert Comment

by:Cyber-Dude
ID: 12337175
Use diskpart to analyze the drive's capacity:
1. Start => Run... => Type 'cmd' and press 'Enter.
2. Type 'diskpart' to start the disk utility of Windows XP.
3. Type 'List Disk' to view all the drives available.
4. Type 'select disk <disk number>' to select the disk you want to analyse.
5. Type 'list partition' to view partition details.
6. Type 'list volume' to verify all correct data.
7. Type 'detail disk' to view all available data on the drive.

More on the 'diskpart' utility:
http://home.earthlink.net/~rlively/MANUALS/COMMANDS/D/DISKPART.HTM

Cyber
0
 

Author Comment

by:Montabahn
ID: 12338323
coral47:

If my drive was formatted as a 30GB and the balance is unallocated, would XP, diskpart, or Partition Magic "see" only the allocated space or both the unallocated and allocated space?


Cyber-Dude

Interesting, but diskpart only sees a primary 29GB, 1x2 Mirror Raid 1 SCSi Disk Device, 32kb offset, NTFS, healthy...
0
 
LVL 1

Expert Comment

by:rwweyers
ID: 12342815
Because this is not a software raid You may have to ghost the dive to DVD or another place and then remake the array drive theen ghost the info back to the drive.... RW
0
 
LVL 1

Expert Comment

by:rwweyers
ID: 12342827
Ghost will work on SATA as long sas you use the correct driver Like as in SCSI you need a boot  disk that can see the drives.   This is a common practice I would look into buying larger drives and setting them up as a Mirror and then ghosting to them.
0
 
LVL 32

Expert Comment

by:_
ID: 12344428
>> would XP, diskpart, or Partition Magic see <<  Xp probably won't. DP and PM should, though I don't use them, so I can't say for sure. FDISK should say if there is unallocated space on the drive.
0
 
LVL 15

Expert Comment

by:Cyber-Dude
ID: 12345768
Any chance you are using Quota Manager?

Go to the following link; It has a comprehansive drive analyser tool; I think it'll shed more lite on the drive's missing data:

Links:
Great tool for complete hard drive analysing:
http://www.webattack.com/get/hddhealth.html
And the second tool that helps complete the info;
http://www.webattack.com/get/adenixsmart.html

Good luck

Cyber
0
 

Author Comment

by:Montabahn
ID: 12397292
Here's what I finally did.

I deleted the mirrored array (I did not delete the data) and created a new single drive, striped array.
I then used a third-party software called Casper X. P. and copyed the 30GB to my second SATA 37GB raptor.
The whole 37GB was now available, so I then created a new mirror array.

It sounds so simple, but without the software (which is very simple and elegant) and a few tech support calls with both the maker of the software and the raid controller, I would still have only 30GBs.
0
 

Accepted Solution

by:
PashaMod earned 0 total points
ID: 12472259
Closed, 500 points refunded.
PashaMod
Community Support Moderator
0

Featured Post

VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

Question has a verified solution.

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

I previously wrote an article addressing the use of UBCD4WIN and SARDU. All are great, but I have always been an advocate of SARDU. Recently it was suggested that I go back and take a look at Easy2Boot in comparison.
Many businesses neglect disaster recovery and treat it as an after-thought. I can tell you first hand that data will be lost, hard drives die, servers will be hacked, and careless (or malicious) employees can ruin your data.
This tutorial will walk an individual through the process of installing the necessary services and then configuring a Windows Server 2012 system as an iSCSI target. To install the necessary roles, go to Server Manager, and select Add Roles and Featu…
This Micro Tutorial will teach you how to reformat your flash drive. Sometimes your flash drive may have issues carrying files so this will completely restore it to manufacturing settings. Make sure to backup all files before reformatting. This w…
Suggested Courses

705 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