2013-06-07 | 0 comments
(Or, How to migrate all GPFS filesystem metadata to SSDs) IBM’s general advice [as of 2012] when setting up a new non-tired GPFS filesystem is to lean towards spreading data & metadata across all LUNs. See Data & Metadata in … Continue reading
2013-05-28 | 0 comments
One of the new features in GPFS 3.5 is that filesets can now have independent an “inode space”, ie it’s own inode table like a stand alone filesystem, and that one fileset can now inherent another fileset’s inode space. This … Continue reading
2013-05-20 | 0 comments
First we need to identify the block devices that will be part of the new filesystem. In this example, we’re creating a new filesystem from disks directly attached to only one GPFS server that already has existing filesystems with disks … Continue reading
2013-05-01 | 0 comments
I recently realized that I never cleaned up and posted my notes about GPFS cluster creation. Here is a trivial example of a single node GPFS “cluster” with a single node in it. Creating the cluster requires at least one … Continue reading
2013-03-26 | 0 comments
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