I didn’t write this patch, but it’s been forwarded to me and my understanding is that a Fusion-io customer wrote this a while back. VSL (the software driver for Fusion-io cards) can be recompiled (all the real IP is pre-compiled in an included library), allowing VSL to be recompiled for variations in a given operating… Read More »
Just playing around with this today, and it’s very cool. FreeBSD 9.2 now supports TRIM/UNMAP for ZFS. To see if your disk is reporting the capability, look for kern.cam.da.<device>.delete_method where <device> is the number of the da device, i.e. /dev/da5 is “5” in that place. For example: # sysctl -a | grep delete_method kern.cam.da.0.delete_method: NONE kern.cam.da.1.delete_method:… Read More »
I was reminded to data about the availability issues with storage. Of course, I live it every day on the “sell side” working for Pure Storage. But for my home lab and office, I tend to have “less than enterprise” requirements. Even so, my primary use of my DroboElite has been for secondary copies (backups)… Read More »
I’m adding in an older Hitachi 1TB desktop drive to my FreeBSD ZFS server. I want to get it paired up with another Hitachi drive that’s in use on the system. Since I want both of the Hitachi drives to be my mirrored drives for my “backup” pool and filesystem (where our home laptops drop… Read More »