[dm-devel] newbie: Target Length not divisble error

[Heinz Mauelshagen]

On Thu, Dec 14, 2006 at 08:34:37AM +0800, Hadders wrote:
> Hi Heinz,
>   Someone in the ata.raid group suggested I manually tweak the stride 
> size and update my mkinitrd as there was a problem with a version in its 
> nash and parted.
> I've done that and it has worked!
> 
> Original:  1250275846
> 1250275846/(2*256) = 2441945.01171875
> They said, make an even multiple so take 2441945*512= 1250275840
> 
> dm create isw_cdgbeijgjh_iaa 0 1250275846 striped 2 256 8:0 8:16 0
> with
> dm create isw_cdgbeijgjh_iaa 0 1250275840 striped 2 256 8:0 8:16 0
> 
> So I did that. It didn't work, but then they said there was the mkinitrd 
> issue. So I updated mkinitrd, rebuilt the initrd, added the raid stuff 
> back in and voila!

Good :)

> 
> Of course, this is still only a work around.  Would this calculation 
> work for any RAID container stride errors like this one?

Yes, I think so.

Heinz

> 
> Regards. Hadders
> 
> 
> Heinz Mauelshagen wrote:
> >Hrm, dmraid-1.0.0.rc11 has the stride size fix in,
> >which *should* prevent that kernel message to occur.
> >
> >Can you send me your metadata created with "dmraid -rD" 
> >for analysis, please ?
> >
> >Pack the *.{dat,size,offset} files into isw-Hadders-raid0.tar.bz2
> >before sending.
> >
> >Regards,
> >Heinz    -- The LVM Guy --
> >
> >On Tue, Dec 12, 2006 at 10:21:11PM +0800, Hadders wrote:
> >  
> >>Hi all,
> >> I'm new to trying to get my Intel SATA RAID 0 container working.  I 
> >>want to use the "hardware" mode as oppossed to software RAID so I can 
> >>share it with my Windows setups.
> >>I've just spent the last three days banging my head against a brick wall.
> >>In short, I'm using FC5 and am looking to get the latest kernel, 
> >>2.6.18-1.2239.fc5smp working with this container.  I don't understand 
> >>why it doesn't, the base FC5 kernel does.
> >>I've just got my SATAII disks and setup the container in the Intel BIOS. 
> >>I've installed FC5 from scratch and used anaconda to setup the partitions.
> >>When I reboot into my new kernel, I get an error when it tries to 
> >>activate the container,  that is
> >>
> >>device-mapper: table: 253:0 striped: Target length not divisble by chunk 
> >>size
> >>
> >>then I get growled at for using parted and not knowing what I'm doing. I 
> >>didn't! honest, I used anaconda.
> >>the lines for setting up the container in the init file of the initrd are
> >>rmparts sdb
> >>rmparts sda
> >>dm create isw_cdgbeijgjh_iaa 0 1250275846 striped 2 256 8:0 8:16 0
> >>dm partadd isw_cdgbeijgjh_iaa
> >>
> >>Here's the details of my setup that I can access under 2.6.15-1.2054 
> >>(base FC5) kernel
> >>
> >>dmraid -V
> >>dmraid version:        1.0.0.rc11 (2006.05.15) debug
> >>dmraid library version:    1.0.0.rc11 (2006.05.15)
> >>device-mapper version:    4.5.0
> >>
> >>dmraid -rD
> >>/dev/sda: isw, "isw_cdgbeijgjh", GROUP, ok, 625142446 sectors, data@ 0
> >>/dev/sdb: isw, "isw_cdgbeijgjh", GROUP, ok, 625142446 sectors, data@ 0
> >>
> >>dmraid -s -g
> >>*** Superset
> >>name   : isw_cdgbeijgjh
> >>size   : 1250284892
> >>stride : 0
> >>type   : GROUP
> >>status : ok
> >>subsets: 1
> >>devs   : 2
> >>spares : 0
> >>--> Active Subset
> >>name   : isw_cdgbeijgjh_iaa
> >>size   : 1250275840
> >>stride : 256
> >>type   : stripe
> >>status : ok
> >>subsets: 0
> >>devs   : 2
> >>spares : 0
> >>
> >>dmsetup status
> >>isw_cdgbeijgjh_iaap6: 0 4498137 linear
> >>isw_cdgbeijgjh_iaap5: 0 204796557 linear
> >>isw_cdgbeijgjh_iaa: 0 1250275846 striped
> >>isw_cdgbeijgjh_iaap4: 0 1044947925 linear
> >>isw_cdgbeijgjh_iaap3: 0 102398310 linear
> >>isw_cdgbeijgjh_iaap2: 0 102398310 linear
> >>isw_cdgbeijgjh_iaap1: 0 530082 linear
> >>
> >>I think the 18-1 kernel uses device-mapper v4.7
> >>
> >>However, I'm lost as to what to do now. Help! Please!
> >>
> >>Thanks in advance. Hadley
> >>
> >>--
> >>dm-devel mailing list
> >>dm-devel at redhat.com
> >>https://www.redhat.com/mailman/listinfo/dm-devel
> >>    
> >
> >*** Software bugs are stupid.
> >    Nevertheless it needs not so stupid people to solve them ***
> >
> >=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> >
> >Heinz Mauelshagen                                 Red Hat GmbH
> >Consulting Development Engineer                   Am Sonnenhang 11
> >Storage Development                               56242 Marienrachdorf
> >                                                  Germany
> >Mauelshagen at RedHat.com                            PHONE +49  171 7803392
> >                                                  FAX   +49 2626 924446
> >=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> >
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