[DRBD-user] DRBD on redhat 9 [solved!]

[David]

----- Original Message ----- 
From: "Jeff Buck" <jeffb at umci.com>
To: "David" <david at davidbranford.net>
Sent: Friday, June 03, 2005 3:11 AM
Subject: Re: [DRBD-user] DRBD on redhat 9 [solved!]


> On Thu, 2005-06-02 at 02:14 +0930, David wrote:
>
>> Will my cutting the initial sync short harm my setup in any way? 
>> Everything
>> seems to be working as expected, and copying a file to my (mounted) drbd
>> partition and then unmounting, swapping pri/sec, and re-mounting shows 
>> the
>> changes on the other system, etc.
>>
> I don't think this will really cause you any problems as long as you
> added your filesystem to the drive after drbd was up and running, but
> just to be safe (and to make sure that even your unused blocks on the
> drive are identical) you should probably log in to your primary box and
> do an invalidate remote.

Cool! An invalidate_remote was successful (although it took an hour and a 
half for a full resync of 80gig... only 100mb ethernet here though)

> That will force it to resync everything once more. You could run it late
> at night or something if you've got users on the volume already and
> you're worried about the performance hit of resyncing..

No users yet; but soon - just in testing on separate hardware. Thanks for 
the tip - after an invalidate_remote, some more disk i/o and watching the 
logs for a few days, I see no abnormalities and my data is being 'mirrored' 
accross both hosts as expected.

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