[ubuntu-za] Feisty VMware SAN Replication

Jason Ming Sun jmingsun at gmail.com
Mon Nov 19 05:53:24 GMT 2007

Hi everyone

We've had problems this past week.

We've got virtual (guest) Ubuntu Feisty/Gutsy hosts running in VMware ESX
cluster supported by a SAN.

SAN "experts" are busy trying to assist with SAN replication. Trouble is,
when the start the replication using MirrorView, all our Ubuntu hosts
remount their root filesystems as read-only (upon error):

The default configuration as reflected in fstab:
/dev/mapper/my--server-root    /          ext3
defaults,errors=remount-ro  0       1

We need to make this hot replication succeed (while web servers remain live)
and if we can't get around the errors experienced, then I thought of maybe
changing fstab to not remount as read-only upon error.

Is that risky? Could I possibly get a corrupt virtual disk?

Anyone with experience with this or if you have any ideas, please help?

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