gmirror on a laptop.
pbowen at fastmail.fm
Sun Mar 12 21:52:17 UTC 2006
Chuck Swiger wrote:
>Patrick Bowen wrote:
>>I wanted to fiddle around with gmirror(8) on a Dell C-600 Laptop. It has
>>a 2-slice, 20 Gig HD, and I essentially wanted to mirror ad0s1 to ad0s2.
>>I realize this will put the HD under stress, but otherwise it seems
>>What I want to know is whether this is such an incredibly bad idea I
>>shouldn't even consider it --or-- it seems like a good way to get
>>familiar with gmirror, so go for it.
>If you want to do this for the sake of practice, by all means, feel free.
>However, mirroring onto the same device is going to result in almost no benefit
>to reliability and will cause a very large performance hit, as well as reducing
>the usable amount of disk space in half. (In other words, actually leaving the
>machine set up that way would be an incredibly bad idea.)
I agree, except that I had anticipated absolutely *no* benefit to
reliability. If the disk goes bad, then having a mirror on the same
disk, different slice, would still give me...no disk. I simply wanted to
get the practice by actually doing, instead of just reading about it.
I'll probably re-install Slackware on the other slice when I get done
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