Appendix A - System Reference
110
7700 Series Flash Storage Platform Installation Guide 7.6.3.x
530-0267-00 Rev 02
Once the new settings are committed, any previous settings are saved in /usr/local/concerto/etc/
ha_precfg.ini.prev. The new
ha_precfg.ini
file you created is ready for use in setting up HA
using CLI commands.
Enabling High Availability
Complete these steps on Memory Gateway A to enable high availability between Memory Gateway
A and Memory Gateway B.
1.
Log in to Memory Gateway A.
2.
Enter the “
enableha
” command to enable the HA function:
Where:
-s
(lowercase) precedes the primary server name (Memory Gateway A)
-S
(uppercase) precedes the secondary server name (Memory Gateway B)
-U
(uppercase) precedes the secondary server’s (Memory Gateway B) user name
-P
(uppercase) precedes the secondary server’s (Memory Gateway B) password
-pcu
precedes the power control user name
-pcp
precedes the power control password
-ar
allows the secondary server to restart for any resolution of configuration conflicts
-X
precedes the remote procedure call timeout value (in seconds)
3.
Ignore any messages stating, “
Can’t open lock file...
” and wait for the command to
be executed successfully.
Enabling Dedup
At least one 7000 Series FSP shelf is required in your 7700 FSP cluster to support the deduplication
and compression (dedup) feature. The 7000 Series FSP must have one storage pool with dedup
enabled where dedup LUNs may be created (6000 Series arrays do not support dedup).
During the enabling of dedup, the process only creates dedup vdevs (virtual devices) in storage
pools, where dedup is enabled and no LUNs are yet created. The process of allocating space must
be planned so that the entire capacity is judiciously used as needs arise.
Once created, both LUN types are visible in the CLI and Symphony (all of the dedup LUNs are
compressed by default). You must be logged in to Memory Gateway A to enable dedup, and only
enable dedup on one storage pool on MG-A on the 7000 Series FSP shelf.
[root@
hostname
-MG-A ~]#
isscli enableha -s
hostname
-MG-A -u root
-p <password> -S
hostname
-MG-B -U root - P <password> -pcu admin
-pcp admin -ar -X 60
Command: enableha executed successfully.