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my spew on installing sofware RAID 1 last night

05 November, 2007 00:17

I spent last night setting up software RAID 1 on hamper, my crazy server that sits half buried in dirty clothes in my closet.  I have to admit, I was a little scared with the precious data I had already on one of the partitions I use as root.  The array I was creating was the root filesystem, minus /usr which is on a separate non mirrored partition.

The documentation that came with the Ubuntu MDADM package was fantastic!  It was very well written.  The only problem I had was thinking I was all done and everything blazing, until I rebooted with a GRUB error.  I checked the documentation and realized I had gotten ahead of myself.  Their was one page I overlooked with an explanation of that process.  So, I had to take the HD to my desktop, enter some nonsense grub root information, and re-install the bootloader.  After that, I had a grub console, so all was good and I was able to finish the job.

One drive in the array is a 10,000 RPM HD on a Promise Ultra controller.  I was worried about adding the slower drive to the array, but I later learned that the performance loss is next to nothing with the methods of syncing the array, not to mention the gain in performance with read access. 

 

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Main Entry: spew

Pronunciation: \ˈspyü\
Function: verb
Etymology: Middle English, from Old English spīwan; akin to Old High German spIwan to spit, Latin spuere, Greek ptyein intransitive verb
Date: before 12th century
  1. VOMIT
  2. to come forth in a flood or gush
  3. to ooze out as if under pressure : EXUDE
transitive verb
  1. VOMIT
  2. to send or cast forth with vigor or violence or in great quantity <a volcano spewing out ash> —often used with out —spew·er noun
- [edited source] Merriam-Webster
Land where drunk cows swim and home to my daily hand