[Beowulf] Software Raid
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Paul pmckenna11 at comcast.netMon Dec 12 16:26:44 PST 2005
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I read in a post somewhere that it was not possible to use a Linux software RAID configuration for shared file storage in a cluster. I know that it is possible to use software RAID on individual compute nodes but the post stated that software RAID would not support properly support simultaneous accesses on a file server. Is this true? Assuming that hardware RAID is required (or at least preferable) I was wondering if the built in RAID on some motherboards would be adequate or do we need to look into a dedicated piece of hardware. We will have about 10 - 12 cpus initially that will be connected with giganet network. We currently have about a terrabyte of storage space and are planning to mount it using NFS in a RAID 5 configuration. Our applications for now will be database intensive bioinformatics apps. I would be very interested in any comments. Thanks Paul Mc Kenna
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