Basic Configuration of Glance Using E-Series as a Glance Backing Store¶

E-Series and EF-Series storage systems can alternatively be used as the backing store for Glance images. An E-Series volume should be created (with SANtricity specifying the desired RAID level and capacity) and then mapped to the Glance node. After the volume is visible to the host it is formatted with a file system, mounted, and a directory structure created on it. This directory path can be specified as the filesystem_store_datadir in the Glance configuration file /etc/glance/glance-api.conf.

Steps:

1. Create the LUN from a disk pool or volume group using SANtricity and map it to the host. Assuming that the volume has been mapped to /dev/sdc on the host, create a partition on the volume and then create a filesystem on the partition (e.g. ext4)

$ fdisk /dev/sdc

$ mkfs.ext4 /dev/sdc1

$ mount /dev/sdc1 /mnt/sdc1

$ mkdir /mnt/sdc1/glanceImageStore

2. Edit the Glance configuration file glance-api.conf so that it contains the filesystem_store_datadir option, and ensure the value refers to the Glance image store directory created in the previous step.

$ filesystem_store_datadir=/mnt/sdc1/glanceImageStore