questions on Adaptec 2810SA raid card.
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questions on Adaptec 2810SA raid card.

 
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Posted: Thu Dec 16, 2004 11:47 pm    Post subject: questions on Adaptec 2810SA raid card. Reply with quote

Got some questions that adaptec support is very lathargic answering and
hoping someone here could enlighten me. Thanks in advance.

I have an 2810SA Sata raid card that is capable of holding 8 SATA
drives. I have it configured for raid 5 and is data only. My
operating system is not on this raid configuration. I started out with
3 250G hard drives but would like to start putting 300G drives for the
remaining 5 ports. How would the system "see" a configuration with
mixed 250G and 300G hard drives? I know that Raid 5 likes to see all
drives the same size and just need to know the pit-falls of mixing
drives of different sizes. With 8-300G drives, I could reach a usable
capacity of 2T considering that one drive is for parity? If I used
8-250G, I would only reach 1,750G usable capacity? Is my thinking
correct?


Next question. Adaptec made the following comment:
Quote:
Unfortunately Online Capacity Expansion is not
supported in Windows XP,
it would have to be Windows NT or Windows 2000
with an NTFS partition.
You will be able to expand the array in the
Storage Manager, however,
you will not be able to access the space in the
operating system.
Unless Microsoft can tell you how to do so.

I guess I don't understand the difference between the "storage
manager" and "online capacity expansion". The way I read this is I
have to use the "storage manager" to expand my configuration in XP. If
I had windows 2000, I could use the storage manager OR the online
capacity expansion as accessed through a web page?
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newb
Guest





Posted: Mon Dec 27, 2004 4:37 pm    Post subject: Re: questions on Adaptec 2810SA raid card. Reply with quote

On 16 Dec 2004 10:47:23 -0800, tommynospam@yahoo.com wrote:

<snip>
Quote:
I started out with
3 250G hard drives but would like to start putting 300G drives for the
remaining 5 ports. How would the system "see" a configuration with
mixed 250G and 300G hard drives?

main possibilities are:

2 arrays. 1 from the group of 3 250G drives and another from the
other 5 drives 300G drives

or

1 array made from 8 drives all only using 250G of ea drive with
possibility of using aditional space for another logical drive or
JBOD.


Quote:
I know that Raid 5 likes to see all
drives the same size and just need to know the pit-falls of mixing
drives of different sizes. With 8-300G drives, I could reach a usable
capacity of 2T considering that one drive is for parity? If I used
8-250G, I would only reach 1,750G usable capacity? Is my thinking
correct?

AFIK that's right

Quote:
Next question. Adaptec made the following comment:
Unfortunately Online Capacity Expansion is not
supported in Windows XP,
it would have to be Windows NT or Windows 2000
with an NTFS partition.
You will be able to expand the array in the
Storage Manager, however,
you will not be able to access the space in the
operating system.
Unless Microsoft can tell you how to do so.

I guess I don't understand the difference between the "storage
manager" and "online capacity expansion". The way I read this is I
have to use the "storage manager" to expand my configuration in XP. If
I had windows 2000, I could use the storage manager OR the online
capacity expansion as accessed through a web page?

You can exapand the array and it's logical drive while online using
adaptec's software. Then you will have to enlarge the alocated
partition with MS or 3rd party software like partition magic, Acronis
DDS, etc.
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