Date: Thu, 23 May 2002 10:59:34 +1000 From: "Pietralla, Siegfried P" <siegfried.pietralla@eds.com> To: "'freebsd-questions@freebsd.org'" <freebsd-questions@freebsd.org> Subject: opinion on possible vinum config Message-ID: <16649A8D5C73D51183B80008C728EEB7CC0A8F@AUSYM103>
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hi all, i've just stumbled across vinum and growfs and i'd like an opinion on the feasibility of the following implementation: set up a new disk as one all encompassing partition to be used as one vinum drive. then create a vinum volume for each required mount point and create one plex per volume. then add subdisks in 100Mb increments to each plex as required and use growfs to extend the fs each time a subdisk is added. does anyone see any major drawbacks? i realise that any fs activity that spans a subdisk boundary will involve an extra seek, but at one per 100Mb i don't have any problems with that. my aim here is merely to implement a flexible, controllable filestore layout - performance as such is not an issue. i notice that there are limits in vinum: 256 volumes/system ( not an issue ) and 256 subdisks/plex ( limiting me to 25.6Gb / mount point in my scenario - i can live with that ). it does not mention a subdisk/drive limit e.g. a 60Gb drive would have 600 x 100Mb subdisks - is this a problem? also, is there a limit on how many times you can growfs a fs? thanx for any feedback, siegfried. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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