Date: Thu, 4 Oct 2001 13:36:10 +0930 From: Greg Lehey <grog@FreeBSD.org> To: cscott <cscott@telinco.net> Cc: questions@freebsd.org Subject: Re: expanding vinum concatinations Message-ID: <20011004133610.T15533@wantadilla.lemis.com> In-Reply-To: <3BBBDAFC.E4154FC6@telinco.net>; from cscott@telinco.net on Thu, Oct 04, 2001 at 04:43:56AM %2B0100 References: <3BBBDAFC.E4154FC6@telinco.net>
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[Format recovered--see http://www.lemis.com/email/email-format.html] Your MUA wraps computer output. On Thursday, 4 October 2001 at 4:43:56 +0100, cscott wrote: > Hi, > > I have recently being playing around with vinum but am having a few > problems > > I have a concatinated plex consisting of 3 subdisks, this works fine. > What i want to do is add more space to the plex without losing data > already on it, this is where the problem starts. > > If my understanding is correct i need to add a subdisk then attach it to > the plex with the attach command > here is my existing config > > vinum -> list > 3 drives: > D vinumdrive0 State: up Device /dev/ad3s1e Avail: 0/250 MB (0%) > D vinumdrive1 State: up Device /dev/ad3s1f Avail: 0/250 MB (0%) > D vinumdrive2 State: up Device /dev/ad3s1g Avail: 0/250 MB (0%) > > 1 volumes: > V big State: up Plexes: 1 Size: 749 MB > > 1 plexes: > P big.p0 C State: up Subdisks: 3 Size: 749 MB > > 3 subdisks: > S big.p0.s0 State: up PO: 0 B Size: 249 MB > S big.p0.s1 State: up PO: 249 MB Size: 249 MB > S big.p0.s2 State: up PO: 499 MB Size: 249 MB > > now to add a subdisk i create the following file > > drive vinumdrive3 device /dev/ad3s1h > sd name s3.p1.s0 drive vinumdrive3 > > then run the following comand > > create new > 3: sd name s3.p1.s0 drive vinumdrive3 > ** 3 No space for on vinumdrive3: No space left on device You didn't specify a size. > D vinumdrive0 State: up Device /dev/ad3s1e Avail: 0/250 MB (0%) > D vinumdrive1 State: up Device /dev/ad3s1f Avail: 0/250 MB (0%) > D vinumdrive2 State: up Device /dev/ad3s1g Avail: 0/250 MB (0%) > D vinumdrive3 State: up Device /dev/ad3s1h Avail: 799/799 MB (99%) > > 1 volumes: > V big State: up Plexes: 1 Size: 749 MB > > 1 plexes: > P big.p0 C State: up Subdisks: 3 Size: 749 MB > > 2 subdisks: > S big.p0.s0 State: up PO: 0 B Size: 249 MB > S big.p0.s1 State: up PO: 249 MB Size: 249 MB > S big.p0.s2 State: up PO: 499 MB Size: 249 MB > > As you can see the subdisk wasnt created but vinum now know about the > drive. Correct. This is a feature, not a bug. > I have searched around all I can but cant seem to find anything to > suggest how to do this, or maybe in just being dumb Specify a size. Agreed, the message didn't help. I'll look into that. > Assuming I get the subdisk created am I correct in thinking all i have > to do is an > attach new_sub_disk big > or do I need to stop anything first? big is a volume. You can't attach subdisks to volumes. Attach to the plex you want it in instead, in this case presumably big.p0. > Also do I need to do a makedev afterwards? No. You should never need to do a makedev. To quote the man page: makedev The makedev command removes the directory /dev/vinum and recre- ates it with device nodes which reflect the current configura- tion. This command is not intended for general use, and is pro- vided for emergency use only. > Finally, I realise I wont see the new capacity until the filesystem > is configured to use it. Presumably I can use growfs to do this > without any problems on freebsd 4.4 Hopefully. You'll need to umount the file system first. > This is the disklabel of the test drive > # /dev/ad3s1: > > 8 partitions: > # size offset fstype [fsize bsize bps/cpg] > c: 3173121 0 unused 0 0 # (Cyl. 0 - 786*) > e: 512000 0 vinum # (Cyl. 0 - 126*) > f: 512000 512000 vinum # (Cyl. 126*- 253*) > g: 512000 1024000 vinum # (Cyl. 253*- 380*) > h: 1637121 1536000 vinum # (Cyl. 380*- 786*) Why do you have four drives on one spindle? One's enough. Greg -- When replying to this message, please copy the original recipients. If you don't, I may ignore the reply. For more information, see http://www.lemis.com/questions.html See complete headers for address and phone numbers To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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