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8 Posts
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405
February 8th, 2011 03:00
celerra disaster Recovery behavior
Hello,
when a disaster revovery occure, and a failover is performed to replication site...
the users will access to their shares with the same IP adress????
with their same shares names???
Is there configuration to do, to let users access their shares whith the same IP adress....
Thks
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umichklewis_ac7b91
300 Posts
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February 8th, 2011 08:00
It's not automagic, but you can get the same CIFS server names and IPs, if 1) you have the same IP network segment available on the remote site and 2) you create the same IP address interfaces on the remote site, but DOWN them as you create them. Our DR site has the same IP segment as our production site. For all of the VDMs we replicate, I created the same interfaces on the remote side with the same IPs, but issued server_ifconfig server_2 IF_ down as I created them. When we decide to failover or switchover to the DR site, we have an "extra" step in the procedure to UP the interfaces after the failover event. Sure, it's not automatic, but it's simple - and a healthy number of our users are on Mac OS X and Linux. The out-of-the-box settings for caching name servers means that even when dynamic DNS makes an update, the user's own named has stale information.
Karl
Rainer_EMC
4 Operator
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8.6K Posts
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February 8th, 2011 05:00
I you mean Celerrra Replicator failover and CIFS clients then IP adresses aren't transferred - but we use the same CIFS server names and config and update DNS/WINS so that the clients learn the new IP and connect there.
IP/Mac address failover is only done for the sync Replication that requires MirrorView/S or SRDF/S or Recoverpoint and is on a per-box failover basis
Rainer