[lustre-discuss] Adding MDT to Lustre 2.7

[Patrick Farrell]

We've done it (in the manner you describe), but we do not do it on live systems, out of an abundance of caution.  It's probably fine to do it live, but we always do it during downtime.

- Patrick Farrell
________________________________
From: lustre-discuss [lustre-discuss-bounces at lists.lustre.org] on behalf of Andrus, Brian Contractor [bdandrus at nps.edu]
Sent: Wednesday, July 22, 2015 9:08 AM
To: lustre-discuss at lists.lustre.org
Subject: Re: [lustre-discuss] Adding MDT to Lustre 2.7

So has anyone added DNE to an existing lustre installation?


Brian Andrus
ITACS/Research Computing
Naval Postgraduate School
Monterey, California
voice: 831-656-6238



From: lustre-discuss [mailto:lustre-discuss-bounces at lists.lustre.org] On Behalf Of Andrus, Brian Contractor
Sent: Monday, July 20, 2015 11:37 AM
To: lustre-discuss at lists.lustre.org
Subject: [lustre-discuss] Adding MDT to Lustre 2.7

All,

I want to take advantage of the benefits of multiple MDTs, but am reticent about jumping in with a system with many users that may squeak if there is a hiccup.

I am not seeing any recent (newer than 2013) documentation about how to go about adding an MDT to an existing system.

Is this as simple as formatting a new MDT with an incremented index and mounting it?

Brian Andrus
ITACS/Research Computing
Naval Postgraduate School
Monterey, California
voice: 831-656-6238

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