topic Minimum Disks in Disk Enclosures

Minimum Disks

sajjads — Wed, 09 Aug 2006 06:02:22 GMT

Is it possible to use RAID 10 with only 2 disks ? I understand RAID 10 to be:

2 mirrored sets
striped data across the 2 sets

please correct me if I am wrong.

Re: Minimum Disks

Jefferson Humber — Wed, 09 Aug 2006 06:14:42 GMT

Technically NO.

However most RAID controllers call 2 disks mirrored this name i.e SA 5i in my DL360 G3.

On the MSA if you have more than one mirrored pair in an array it automatically stripes across them, thus creating a RAID10 set in the process.

Jeff

Re: Minimum Disks

Ivan Ferreira — Wed, 09 Aug 2006 08:45:11 GMT

RAID 10 cannot be created with two disks. You need two mirrors.

Re: Minimum Disks

Jaime Bolanos Rojas. — Wed, 09 Aug 2006 14:45:03 GMT

Sajjads,

You need 4 disks minimum to do this type of raid.

This site is very good to ilustrade raids,

http://www.acnc.com/04_01_10.html

Regards,

Jaime.