Check to see the current status of cNFS: [root@foonsd1 ~]# mmlscluster –cnfs GPFS cluster information ======================== GPFS cluster name: fooamcp.example.org GPFS cluster id: 10159024612008204251 Cluster NFS global parameters —————————– Shared root directory: /net/foodata1/cnfsSharedRoot Virtual IP address: foonfs.example.org rpc.mountd port number: … Continue reading
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.
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
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
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