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Raid 1 & Raid 5 on the same server
Name: KrimerJ Date: April 14, 2009 at 14:15:26 Pacific OS: Win Server 2003 CPU/Ram: 3Gb / 8Gb Product: Dell / 2950 Subcategory: Installation
Comment:
Using the integrated controller, can I configure Raid 1 and Raid 5 on the same server. I have 4 (147Gb) hdd's. I need to at least configure Raid 1 for C:\ using 2 hdd's. D:\ for the remaining hdd's.
Name: wanderer Date: April 14, 2009 at 14:42:01 Pacific
Reply:
Yes. That is a pretty standard hardware array setup.
Ideally is this was a dual channel controller you would cable the mirror on one channel and the raid5 on the 2nd channel
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Response Number 2
Name: KrimerJ Date: April 14, 2009 at 14:55:32 Pacific
Reply:
Thanks for the reply. Would it be better to configure two Raid 1's, a C: partition and a D: partition. I only have one controller and that is integrated in the server.
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Response Number 3
Name: wanderer Date: April 14, 2009 at 17:52:09 Pacific
Reply:
If the controller supports hot spares [spare in your case] that would be the route I would go which is two mirror sets one for OS and one for data.
Once controller is fine for a mirror and raid5 array. I just like to optimize :-)
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Response Number 4
Name: Azen Date: April 14, 2009 at 20:44:51 Pacific
Reply:
wander: If I'm not mistaken, Raid 5 requires 3 hdd at least, isn't it. How can KrimerJ do both Raid 1 and Raid 5 at the same time when he only has 4 hdd?
KrimerJ: If the space is not your first concern, but the integrity of the data is, I would go for the Raid 5 with 1 hdd spare configuration,
Hello!
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Response Number 5
Name: scurlaruntings Date: April 15, 2009 at 04:16:42 Pacific
Reply:
He cant. It depends on how many discs the controller supports. Most only support 4. Ideally he needs to mirror his OS and RAID5 the data. RAID5 is more efficient for data and provides greater scalability than a RAID1 for data.That provides ample redundancy with no downtime. But this would require 2 controllers one RAID card and 5 discs minimum with no hot spare.
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Response Number 6
Name: wanderer Date: April 15, 2009 at 06:46:27 Pacific
Reply:
I sure missed that one! Somehow I read FIVE drives. Yep two mirrored array or one raid5 is all that is possible given the limit of drives.
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Response Number 7
Name: KrimerJ Date: April 15, 2009 at 07:14:47 Pacific
Reply:
Wanderer, Azen, Scurlaruntings; Thanks to all for your replies and knowledge. I have decided to go with two Raid-1's. One for the OS and Apps and the other for Data both supported by a 147Gb hdd.
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