At 5:44 PM +0100 2001/1/5, [EMAIL PROTECTED] wrote:
> I suggest increasing INITIAL_DRIVES in vinumvar.h to avoid array
> resize and the associated race conditions. When I tried to configure
> vinum to use 14 disks yesterday, the machine immediately crashed with
> a trap 12 in response to 'vinum create'. I bumped INITIAL_DRIVES to
> 16 to avoid the drive array resize that caused the problem. I bumped
> INITIAL_SUBDISKS_IN_PLEX too, just to be safe.
IIRC, there is a hard limit of 32 physical disks that you can
define, but I've only defined eight. So, I'm below both the absolute
limit I am aware of, and the limit you apparently ran into. We
haven't had any problems with vinum create, so I don't think that
increasing INITIAL_DRIVES or INITIAL_SUBDISKS_IN_PLEX is going to
help.
> To avoid similar races with RAID-5 under high load or with
> softupdates, I had to bump INITIAL_LOCKS to avoid a fatal range lock
> array resize.
We're not using RAID-5, but we are using softupdates. I'll have
to look into the code and see if this patch makes sense for us, and I
may end up doing a "make update" to bring us up to the latest OS
sources, etc... before I try much of anything else.
Thanks!
--
These are my opinions -- not to be taken as official Skynet policy
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