I'm with Jose on this, and in any case, I think you'd be better off not
taking the huge hit that rebuilding a RAID5 of this size is going to take,
and risking a disk crapping out on you during rebuild and losing it all
anyway. 

Thanks,
Brian Desmond
[EMAIL PROTECTED]
 
c - 312.731.3132
 
 

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Jose Medeiros
Sent: Wednesday, August 24, 2005 11:21 AM
To: [email protected]
Subject: Re: [ActiveDir] OT: HP disk upgrade..

Hi David,

Since you fail to mention which MSA your running ( MSA500, MSA1000, 
MSA1500 ) it is difficyult for me to tell you if this will work as I have 
only implemented and supported a MSA500 and a MSA 1000. We just ordered a 
new MSA1500, but it has not arrived yet.

My understanding of HP's RAID controllers is, you can add the 300gb drives 
if you add them to the existing array, you will only rebuild them utilizing 
the same drive capacity as the drives you are replacing.

Therefore unless HP has implemented a new feature that I am not aware of, 
you will have to clear your RAID config from the controllers NVRAM, and 
recreate the Array using the 4 300gb drives. Or if you have 4 available 
slots, you should be able to create a second array of the 4 new drives 
virtually, and move your data between both RAID array's.


Jose :-)

----------------------------------------------------------------------------
--
----- Original Message ----- 
From: David Cliffe
To: [email protected]
Sent: Wednesday, August 24, 2005 3:52 AM
Subject: RE: [ActiveDir] OT: HP disk upgrade..


I didn't see mention of RAID controller or O/S version, but do they support 
logical drive extension?  If so, how about this?  (though probably not much 
faster!)

- Backup data (if important enough...as you said this already is a backup)
- Remove one physical drive from the enclosure
- Replace it with a 300GB drive and let it rebuild completely
- Repeat this sequence 3 more times until all drives are 300GB
- Extend logical drive to full capacity via array config. utility
- Do same under O/S (Win 2003 "dispart" utility is good for this)

Just a thought.

-DaveC
Reuters IS&T Service Delivery




From: [EMAIL PROTECTED] 
[mailto:[EMAIL PROTECTED] On Behalf Of Al Mulnick
Sent: Tuesday, August 23, 2005 8:18 AM
To: [email protected]
Subject: RE: [ActiveDir] OT: HP disk upgrade..


I believe that since they are backups, you have some flexibility.  For one 
thing, you can move the data around and store it on just one disk if you 
wanted to ([EMAIL PROTECTED] ~216GB vs. one 300GB disk) and then after the 
upgrade, move it back.  I'm sure there are other variations.

It would seem a little odd to backup a backup in order to accomplish this. 
You pretty much just need some temporary space while you do this.



Al



From: [EMAIL PROTECTED] on behalf of Frank Abagnale
Sent: Tue 8/23/2005 4:04 AM
To: Active
Subject: [ActiveDir] OT: HP disk upgrade..


Hi,
Sorry for the OT, I have a HP server with an MSA enclosure attached which is

complete with 14 x 72gb disks. The enclosure uses 4 x 72gb disks in a RAID5 
set which are used to store backups. I need to upgrade these 4 disks with 
new 300gb disks. The disks are not used for any other purpose besides 
storing backups.

My initial thought was to do the following:

Backup the drive
Break the array
Remove existing disks
Insert new disks
Create new Array

Is there a better way to do it, or should this method work?

thanks
 - Frank
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