The 3 drives as a Raid is probably set up to have on as a hot spare. A four drive Raid 1 is not really a Raid 1 it is either a Raid 01 or more likely a Raid 10. In a Raid 01 you stripe a pair of drives and then mirror the striped drives. The more common configuration is to create two mirror sets and then stripe them. This gives you fault tolerance with high though put.
On 7/21/07, JT Moree <moreejt@pcxperience.com> wrote:
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Randy Melder wrote:
> If a Linux RAID 1 set is created with 3 drives, is it the same volume
> mirrored on all three drives? If not, how does RAID 1 work with more
> than 2 drives?
we have 4 drives in a raid 1 array on our server. It is the /boot
partition for the system that is being duplicated across all 4 drives.
- --
JT Morée
PC Xperience, Inc.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.2.2 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org
iD8DBQFGoh9r1JwGi/ukQqERAhCNAJwJz5yP6f+kwUD7Vs8FJX70nRlhAgCdG/ur
vhC6jBIf3gMUuWVA2MVVLM0=
=nzTb
-----END PGP SIGNATURE-----
--
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.
MailScanner thanks transtec Computers for their support.
---------------------------------------------------
PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us
To subscribe, unsubscribe, or to change your mail settings:
http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss