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Matthias Bethke <matthias@×××××××.de> posted 20080813225448.GM7990@aldous, |
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excerpted below, on Thu, 14 Aug 2008 00:54:48 +0200: |
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> I have two 500G disks, mirrored in a software-RAID0 on all partitions |
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> but swap which is on two separate 16G partitions. |
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OK, if it's RAID-0, it's striped, not mirrored, and you have NO |
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redundancy at all. If either of those disks fails, your SOL. |
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If it's mirrored, you meant RAID-1. |
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I might have let it pass, but if you think you're mirrored (RAID-1) and |
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are striped (RAID-0) instead, you could be in for one NASTY surprise if |
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one of the disks dies. So I thought it wise to post and warn you, just |
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in case it WASN'T just a typo and you screwed up, BEFORE something |
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happens and you lose the data. |
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But you're correct about swap, at least if you have them set at the same |
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priority. The kernel will automatically stripe across all swap |
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partitions set at the same priority, so if you have multiple disks, put a |
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swap partition on each and set the priority equal (in fstab if you |
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automate swap loading from there), and the kernel will automatically |
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stripe them, increasing your swap performance accordingly. =8^) |
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-- |
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Duncan - List replies preferred. No HTML msgs. |
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"Every nonfree program has a lord, a master -- |
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and if you use the program, he is your master." Richard Stallman |
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