Vinum Corruption

Josef Karthauser joe at tao.org.uk
Thu Dec 28 13:46:01 GMT 2000


Don't run vinum raid 5 under RELENG_4, not at least until Greg's fixed
it.  It appears to be seriously broken for reasons unknown.

I've Cc'd Greg on this to allow him to comment if he wants to.

Joe


On Wed, Dec 27, 2000 at 01:06:43PM +0000, David Dooley wrote:
> Hello,
> 
> On one of my machines running FreeBSD 4.2-Stable. It is a twin Intel 450MHz 
> machine with 256MB memory. Built around a Asus mother board with built in SCSI 
> AIC-7880 controler. I have built a Vinum RAID-5 volume (config below).
> 
> The problem I am getting can be seen below, the Plex is corrupt and several of 
> the subdisks are stale. This is with very little traffic on the volume and 
> takes about 2 days to get into this state. The only way I can get it out of 
> this state is to destroy the volume and rebuild.
> 
> I am not getting any error messages from the SCSI subsystem and it's getting 
> really annoying as all though the disk stays attached I cannot write anything 
> to the disk nor mount or unmount it from it's NFS or local mounts.
> 
> The disk is mounted from system raffles on to two other systems dev and gate 
> as /usr/home, on my laptop I mount just my home directory from the disk into 
> my home directory as /usr/home/dpd/.remote with various symbolic links into 
> the NFS mounted file system to keep things consistant.
> 
> Anyone any ideas, am I using to many disks there are 7 9GB drives resulting in 
> a 50GB partition. Is there a limitation with in vinum as to size or NFS as to 
> how much it can handle being exported. Any help or ideas would be welcome.
> 
> David
> 
> -------------------------------------------------------------------------------
> --------------------
> 
> vinum configuration
> 7 drives:
> D drive1f               State: up       Device /dev/da1s1e      Avail: 0/8678 
> MB (0%)
> D drive2f               State: up       Device /dev/da2s1e      Avail: 0/8678 
> MB (0%)
> D drive3f               State: up       Device /dev/da3s1e      Avail: 0/8678 
> MB (0%)
> D drive4f               State: up       Device /dev/da4s1e      Avail: 0/8678 
> MB (0%)
> D drive5f               State: up       Device /dev/da5s1e      Avail: 0/8678 
> MB (0%)
> D drive6f               State: up       Device /dev/da6s1e      Avail: 0/8678 
> MB (0%)
> D drive7f               State: up       Device /dev/da7s1e      Avail: 0/8678 
> MB (0%)
> 
> 1 volumes:
> V homec                 State: up       Plexes:       1 Size:         50 GB
> 
> 1 plexes:
> P homec.p0           R5 State: corrupt  Subdisks:     7 Size:         50 GB
> 
> 7 subdisks:
> S homec.p0.s0           State: stale    PO:        0  B Size:       8678 MB
> S homec.p0.s1           State: up       PO:      512 kB Size:       8678 MB
> S homec.p0.s2           State: stale    PO:     1024 kB Size:       8678 MB
> S homec.p0.s3           State: up       PO:     1536 kB Size:       8678 MB
> S homec.p0.s4           State: up       PO:     2048 kB Size:       8678 MB
> S homec.p0.s5           State: up       PO:     2560 kB Size:       8678 MB
> S homec.p0.s6           State: up       PO:     3072 kB Size:       8678 MB
> 
> 
> 
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