Appendix G - Managing HA Using CLI Commands
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7700 Flash Storage Platform Installation Guide 7.6.3.x
530-0267-00 Rev 02
To manually edit the
resolv.conf
configuration file (in /usr/local/concerto/bin/
networkconfig.sh) to add DNS servers, issue the commands shown in the following example:
•
Rescan the Memory Gateways if LUNs have been previously created.
If you have already created LUNs, it is recommended that you rescan both of the Memory
Gateways before you use the
enableha
CLI command. Rescan the Memory Gateways by
using the following command format (see the
rescandevices
CLI command example
below):
Rescan the devices using the
rescandevices
CLI command:
Troubleshooting HA Issues
The following table in this section lists some potential errors that could be encountered under
specific conditions, describes the error condition, and provides any workarounds to attempt to
resolve the HA issues.
[root@viomemm315-mga ~]# cat /etc/resolv.conf
domain eng.vmem.int
search eng.vmem.int eng.vmem.int. vmem.int. violintech.net.
nameserver 10.5.0.12
nameserver 10.5.0.13
isscli rescandevices
[-t] [-I]
[-a <adapter>] [-i <scsi-range>]
[-l <lun-range> | -r] [-L] [-A] [-k]
[-X <rpc-timeout>]
isscli rescandevices -X 60
Error
Description
Workaround/Resolution
Failed to resolve Concerto
server to a valid IP address.
(0x9022004)
Error condition after issuing
enableha
CLI command due to
the DNS server not properly
resolving the server name or was
not properly set up.
Workaround: Replace the server
name with its IP address.
Heartbeat monitor IP did not
get properly set up or is not
present.
Error condition after HA was set
up when a heartbeat monitor error
caused both servers to enter a
split-brain condition.
Workaround: Ensure that the
heartbeat monitor is present or is
reset to its proper values.
No valid heartbeat_ip address
was found. Please run
cfghaprecfg.sh to modify
ha_precfg.ini.
(0x0902490d)
Error condition after issuing
enableha
CLI command that
indicates the HA preconfiguration
file is invalid, or that heartbeat_ip
was not properly initialized by
cfghaprecfg.sh.
Workaround: Ensure that you use
cfghaprecfg.sh to modify the default
ha_precfg.ini
file installed by
RPM.
Table G.1 Troubleshooting HA CLI Issues