It appears that under some circumstances these two sysfs trees /sys/bus/scsi/drivers/sd/ & /sys/bus/scsi/devices/ may not be populated with the same set of devices.
Die SCSI device, Die!
2013-03-20 | 0 comments
Author Archives: jhoblitt
First look at the Intel DC S3700 series of SATA interface SSDs
2013-03-17 | 0 comments
Intel has been shipping the DC S3700 series fairly quietly for a couple of months now. I suppose that “DC” is supposed to mean Data Center? This new series is also high write endurance MLC based flash that’s designed to … Continue reading
Tuning the 3ware 9550 series of SATA RAID controllers on Linux
2013-03-09 | 0 comments
This post is dedicated to David Newman. 🙂 For the second time in the last three weeks, I’ve come across an older model 3ware 9550 controller that was causing the system to lurch under load with high. Presumably due to … Continue reading
Oops, I broke an EC2 instance… now what?
2013-03-08 | 0 comments
I had a boo-boo the other day while upgrading glibc on an EC2 instance. Assuming that it’s not easier in terms of opportunity cost to provision a completely new instances to replace a broken on, it is possible to recover … Continue reading
fixing the WordPress Twitter Badge Widget v1.75 plugin to work with HTTPS
2013-03-08 | 0 comments
The excellent WordPress Twitter Badge Widget Plugin I use on this blog fetches a .js from twitter via HTTP. Ironically, twitter redirects the request to be via HTTPS but initial request is enough to break the browsers title bar “lock … Continue reading