[rescue] Oracle making just a little harder to keep old machines in use
ian.finder at gmail.com
Fri May 7 11:28:15 CDT 2010
IMHO, this was a really cool feature, and perhaps because of it I've never had
data loss with XFS on SGI gear, including on huge striped logical volumes.
I really miss Irix and SGI hardware a lot. No joke, it actually torments me
quite frequently that their that platform is gone forever, and there is now a
Dell box under my desk.
Now I'm going to go look at the bits of my broken Crimson and cry... Thanks
Sent via mobile.
From: Jonathan Patschke
Sent: 05/07/2010, 9:19 AM
To: The Rescue List
Subject: Re: [rescue] Oracle making just a little harder to keep old machines
About the time SGI started shipping XFS as the primary filesystem for
IRIX, they beefed up the capacitors in the power supplies and added a
closely-coupled hardware/kernel feature wherein the power supply would
signal a pin upon external loss of power. The kernel handler for that
interrupt would dedicate all remaining CPU time to making XFS consistent
enough on-disk to survive the experience.
Jonathan Patschke | "There is more to life than increasing its speed."
Elgin, TX | --Mahatma Gandhi
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