Replace RAID 0 array drives for bigger ones

[Ugo Bellavance]

Patrick_Boyd at dell.com wrote:
> The easiest and safest thing to do in this case would be to insert the
> two new drives along with the old drives. Create a new virtual disk. And
> then create a new file system on the new vd and the copy the data from
> one vd to the other. 

It looks like it is not possible.  This is a 1850 2U and I've been told 
we cannot put more than 2 drives in it.

> 
> It is possible to resize LSI virtual disks, but it's a fairly risky
> procedure and I would recommend it.
> 

You would or wouldn't?

Regards,

> -----Original Message-----
> From: linux-poweredge-bounces at dell.com
> [mailto:linux-poweredge-bounces at dell.com] On Behalf Of Ugo Bellavance
> Sent: Wednesday, October 11, 2006 3:28 PM
> To: linux-poweredge-Lists
> Subject: Re: Replace RAID 0 array drives for bigger ones
> 
> Patrick_Boyd at dell.com wrote:
>> Yes with a RAID 1 it is possible. 
> 
> How do I proceed, can I resize the RAID volume, or must I create a new
> volume, that will be mounted seperately?
> 
>> -----Original Message-----
>> From: linux-poweredge-bounces at dell.com 
>> [mailto:linux-poweredge-bounces at dell.com] On Behalf Of Ugo Bellavance
>> Sent: Wednesday, October 11, 2006 2:46 PM
>> To: linux-poweredge-Lists
>> Subject: Re: Replace RAID 0 array drives for bigger ones
>>
>> Adam Williams wrote:
>>> no that is not possible.  if you have /boot on its own partition and 
>>> have 2 drive bays available, you could convert the 72G raid 0 to LVM,
> 
>>> then add the two 146G drives and have them as LVM and add them to 
>>> your
>>> current filesystem.
>>>
>>> I wouldn't reccomend raid 0 though as there is no redundancy...you 
>>> lose a drive and you lose all your data.
>>
>> Sorry, I meant RAID 1 (Mirror).
>>
>>> Ugo Bellavance wrote:
>>>> Hi,
>>>>
>>>> 	We are using a LSI Logic MegaRAID 521S under linux.  We have
>> 2x36 GB
>>>> HDD in the server and we'd like to replace them with bigger capacity
>> drives.
>>>> Would it be possible to:
>>>>
>>>> - Purchase 2 146 Go drives
>>>> - Remove one 36 Go drive, replace it with one 146 Go drive
>>>> - Wait for the array to rebuild
>>>> - Do the same with the second drive
>>>> - Tell the array to use all HDD space available (stretch from 36 GB 
>>>> to
>>>> 146 GB)
>>>>
>>>> Is that possible?
>>>>
>>>> Regards,
>>>>
>>>> ugo
>>>>
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