Here's the background: migrating from FOSS 7.1.3 32 bit on SLES10 to FOSS 7.1.3 64 bit on SLES11. I have been following:
Network Edition: Moving from 32-bit to 64-bit Server - Zimbra :: Wiki
to the "T". On step "7" of "For all versions:" (zmcontrol start) i get this:
Starting ldap...Done.
Starting zmconfigd...Done.
Starting logger...Done.
Starting mailbox...Done.
Starting memcached...Failed.
Starting memcached.../opt/zimbra/bin/zmmemcachedctl: line 65: /opt/zimbra/memcached/bin/memcached: No such file or directory

Starting antispam...Done.
Starting antivirus...Done.
Starting snmp...Done.
Starting spell...Done.
Starting mta...Done.
Starting stats...Done.

A zmcontrol status shows this:
antispam Running
antivirus Running
ldap Running
logger Running
mailbox Stopped
zmmailboxdctl is not running.
memcached Stopped
memcached is not running.
mta Running
snmp Running
spell Running
stats Running
zmconfigd Running

Now, i understand that in order for this to work, the new 64 bit server MUST be configured exactly like the 32 bit server. I verified on the 32 bit server that memcached IS installed. On the 64 bit server memcached is NOT installed. Is there a way to install memchaced on the 64 bit server after the initial install without breaking anything/everything and would this cause mailboxd not to start?