Ganeti ext-storage interface for Dell Equallogic
more information can be found at: [http://docs.ganeti.org/ganeti/master/html/man-ganeti-extstorage-interface.html]
requirements
This interfase is tested in an Ubuntu 14.04 environment, packages need to be installed on the node:
Software
- open-iscsi
- multipath-tools
- python-paramiko
SAN interface setting
auto san1
iface san1 inet static
mtu 9000
address 192.168.a.b
netmask 255.255.255.0
pre-up sysctl -w net.ipv4.conf.san1.rp_filter=2
post-up iscsiadm -m iface -I san1 -o new && iscsiadm -m iface -I san1 --op=update -n iface.net_ifacename -v san1
multipath configuration
defaults {
user_friendly_names no
path_grouping_policy multibus
polling_interval 3
path_selector "round-robin 0"
failback immediate
features "0"
no_path_retry 1
}
blacklist {
devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*"
devnode "^(hd|xvd|vd)[a-z][[0-9]*]"
#devnode "^(sd)[a-b][[0-9]*]"
devnode "^cciss!c[0-9]d[0-9]*[p[0-9]*]"
}
devices {
device {
vendor "EQLOGIC"
product "100E-00"
path_grouping_policy multibus
path_selector "round-robin 0"
failback immediate
features "0"
no_path_retry 1
}
}
multipaths {
multipath {
wwid *
}
}
Equallogic CLI
connect to SSH
At the connect step some settings are done to make parsing possible
# disable system events shown in the CLI
cli-settings events off
# do not ask for non reversible commands to confirm
cli-settings confirmation off
# one information per line
cli-settings formatoutput off
# print all
cli-settings paging off
# use MB as unit
cli-settings displayinMB on
create Volume
volume create <NAME> <SIZE>MB description gnt-<NAME> read-write online iscsi-alias gnt-<NAME> thin-provision
grant Access to a Volume
volume select gnt-'+name+' access create ipaddress *.*.*.* initiator *
show Volume
volume show <NAME>
delete Volume
volume select <NAME> offline
volume delete <NAME>
grow Volume
SIZE is the new absolute Volumesize in MB
volume select gnt-<NAME> size <SIZE>
Build a Package
- install fpm
gem install fpm - run
make deb