Date: Mon, 12 Jun 2000 13:40:53 -0700 (PDT) From: Rick McGee <rickm@imbris.com> To: Glenn Johnson <glennpj@bayouhome.net> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: CCD concatanated disks. Message-ID: <Pine.BSF.4.10.10006121311491.10489-100000@wind.imbris.com> In-Reply-To: <20000611184423.A1390@gforce.johnson.home>
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Glen, I tried it striped and catanated... No change Does CCD write anything on the system disk other than in device? It is interesting that the disks will newfs but will never write the label after writing the block. iotctl error. Thanks Rick On Sun, 11 Jun 2000, Glenn Johnson wrote: > On Sun, Jun 11, 2000 at 10:35:39AM -0700, Rick McGee wrote: > > > Problem: > > > > After spending days getting CCD to work right, I lost a drive. Now > > that I have a different drive, the following appears. ioctl disklabel > > on ccd0 unable to write. (BTW the home page for CCD does not load as > > indicated from Freebsd help page.) > > > > Now for fun I've done the following: > > > > reformatted the original 2 drives off the scsi controller. CCD states > > it made the device: > > newfs -f 512 -b 4096 -i 3072 /dev/rccd0c > > > > Warning: Block size restricts cylinders per group to 5. > > Warning: 2752 sector(s) in last cylinder unallocated > > /dev/rccd0c: 71247168 sectors in 17395 cylinders of 1 tracks, 4096 > > sectors > > 34788.7MB in 3479 cyl groups (5 c/g, 10.00MB/g, 3296 i/g) > > super-block backups (for fsck -b #) at: > > 32, 20512, 40992, 61472, 81952, 102432, 122912, 143392, 163872, 184352, > > At the end it states ccd can't write disklabel for ccd0c > > You should run "disklabel -r -w ccd0c auto" before newfs; man ccdconfig. > > > Now: in the documment of ccd it doesn't state the drives need to > > be the same. In fact it references the drives can be different > > partitions. If that is the case, would a value of 0 be better than > > 64? > > Are you referring to the interleave flag here? An interleave of 0 would > be used for a concatenated ccd, while an interleave of 64 would be a 64 > sector stripe. > > -- > Glenn Johnson > glennpj@bayouhome.net > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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