Hi Robert,
This is the RAID-Bible from Adaptec:
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Am Freitag, 24. Februar 2006 um 01:36 schrieben Sie:
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Isn’t their chart wrong? It shows RAID 5 as “very high” and “very high” while RAID 0+1 is only “high” and “very high” which would seem to indicate RAID 5 is better and uses less disks. Looks like a typo ???
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Christopher Checca Sent: Thursday, February 23, 2006 4:32 PM Subject: RE: [IMail Forum] New Server Specs
Here’s a good high level view of RAID levels… http://www.raidweb.com/whatis.html
I use their 8 drive SATA SCSI interface units with RAID 0+1 with my SQL servers and RS/6000 AIX servers. Performance is two to three times any DELL or IBM raid arrays I’ve used.
Please note in real world usage I’ve seen RAID 0+1 well out run any RAID 10 array. Christopher Checca Packard Transport, Inc. IT Department 24021 South Municipal Dr PO Box 380 Channahon, IL. 60410 815 467 9260 815 467 6939 Fax [EMAIL PROTECTED] www.packardtransport.com -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jim F. Sent: Thursday, February 23, 2006 2:13 PM Subject: [IMail Forum] New Server Specs
Hello All:
I haven't gotten any responses to any of my other questions that I've sent to the group, hopefully this one will.
I'm trying to spec out a new server and had a question for the group in regard to HDD configuration. What kind of RAID setup works best on a mid-size Imail installation? Is RAID-1 acceptable or is RAID-5 recommended? Also, would 15K RPM disks make a huge difference as opposed to 10K RPM disks?
Thanks, Jim Frasch |
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