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Christian Spoo wrote: |
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> Hi, |
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> |
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> I need to set up a RAID box of about 470GB disk space accessible via |
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> GBit LAN. |
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> |
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> The whole thing should have good performance but must be reliable as |
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> well. Which RAID mode would you recommend, 5, 0+1 or maybe any other? |
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> How about the time needed for rebuilding such arrays in case of disk |
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> failure? |
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> |
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> |
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> Thanks in advance, |
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> |
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> Christian Spoo |
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> |
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I work with about 10 systems that have RAID5 all have between 300GB and |
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1.5TB of space. |
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The slowest old systems with 3 or 4 disks IDE 200GB can rebuild raid5 |
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at about 25MB/sec. |
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Newer faster systems with 3 or 4 SATA 500GB disks can rebuild raid5 at |
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about 60MB/sec. |
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The RAID5 storage servers can always saturate a 100mbps LAN connection |
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in my case. Doing a copy over a gbit LAN, of large multimedia files from |
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one RAID5 to another RAID5 server over NFSv3, I see about 30MB/sec |
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max. Sorry i don't have exact benchmarks to show you, only what I |
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recall seeing in the last few months. |
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For your needs, assuming you have to buy new disks, 2x 500GB disks in |
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RAID1 and your done. |
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-- |
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-- |
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Karl Hiramoto http://karl.hiramoto.org/ |
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-- |
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