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Date:      Mon, 29 Nov 1999 23:08:53 +0100
From:      Poul-Henning Kamp <phk@critter.freebsd.dk>
To:        Kim and Chet Golding <golding@halcyon.com>
Cc:        small@FreeBSD.ORG
Subject:   Re: md - memory disk wishlist ? 
Message-ID:  <23780.943913333@critter.freebsd.dk>
In-Reply-To: Your message of "Mon, 29 Nov 1999 14:00:19 PST." <Pine.GSO.4.20.9911291345060.23725-100000@king.halcyon.com> 

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In message <Pine.GSO.4.20.9911291345060.23725-100000@king.halcyon.com>, Kim and
 Chet Golding writes:
>
>Great Question!
>
>1. Mirror or Raid mode would be very cool.

For a memory disk ?

>2. A cluster hook of some sort would be super if you had multiple systems
>and could config/treat a memory disk as a single unit and let the unit
>take care of passing updates to another system.  (Maybe on boot this
>could reload itself from another systems md based on a switch-file or
>test-condition script in /etc... or after network was up.. failing over
>to something in /etc/defaults if network is unreachable..)

Uhm.  This is a network filesystem, isn't it ?

>3. Snap effect... Something like a .bak but with versions say up to 16
>working in a lifo manner.  Would be good for some situations.  Giving you
>a version cache device for sql tables or floppy build versions.

Hmm, that could be made rather simply I think.  It's on the list.

--
Poul-Henning Kamp             FreeBSD coreteam member
phk@FreeBSD.ORG               "Real hackers run -current on their laptop."
FreeBSD -- It will take a long time before progress goes too far!


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