[Info-vax] Unpleasant Disk Shadowing Surprise

[Richard B. Gilbert]

On 10/11/2011 10:24 PM, Phillip Helbig---undress to reply wrote:
> In article<j72tl2$6k1$2 at online.de>, helbig at astro.multiCLOTHESvax.de
> (Phillip Helbig---undress to reply) writes:
>
>> In article
>> <1750432.79.1318364167195.JavaMail.geo-discussion-forums at yqv33>, Kenneth
>> Fairfield<ken.fairfield at gmail.com>  writes:
>>
>>> But as others have noted, having both shadow members
>>> on the same scsi bus is problematic.  A single "bad"
>>> error on the one disk can hang the whole bus...
>>
>> Except for the system disk and perhaps one for swap/page, I wouldn't
>> have two members on the same node, much less the same bus.  SOPF and all
>> of that.
>
> SPOF, of course---single point of failure.
>

When in doubt, spell it out!  It's not that hard to do.