Hello
After a long-long testing and reconfiguring we finally found the way
to connect the alphaservers with EMC.
Basicly there's two things:
- It will only work with some intermediary - as fibre switch
or (maybe) hub. Direct (e.g. point-to-point)
connections are not supported and don't work.
- EMC _must_ have all appropriate bit's set (T,C and VMS)
The last one is the catcher - becaouse C bit seems to imply only
clustered connections - but instead is needed for standalone servers
also.
Besides up to patch level 2 fibre support in Tru64 5.1 is a bit flaky
(it crashed twice on us).
Big thanks to Han Pilmeyer and Zoltan Horvath in resolving this issue :)
The original letter follows:
> While trying to connect an DS20E to the EMC Symmetrix V via the
> fibrechannel we encountered the following 'feature':
>
> During usage of disklabel or diskconfig the disks accessed will
> 'duplicate' (a second scsi component with a new ID will be seen by hwmgr
> - but the disk address will be the same as the one accessed). After this
> both accessed disk and the 'duplicate' will be inaccessible - until the
> duplicate is deleted via hwmgr -delete.
>
> Has anybody seen something like it before? :)
>
> The configuration of the disks is following:
> lun16 (bus0, addr. 0) - dsk7
> lun32 (bus0, addr. 0) - dsk8
> lun48 (bus0, addr. 0) - dsk9
> lun64 (bus0, addr. 0) - dsk10
> lun80 (bus0, addr. 0) - dsk11
> lun96 (bus0, addr. 0) - dsk12
>
> Trying to access the last two will always cause random duplication (i.e.
> the disk accessed and also some other disks will 'duplicate'). With
> others this feature is random.
>
> EMC doesn't log any errors..
>
> Hw configuration:
> DS20E, 2x667 processors, 1.2Gb ram, 18.2GB scsi system disk via symbios
> controller, 2x293440201 32-bit fibrechannel controllers, 2xde600
> nic's.
>
> Sw configuration:
> SRM is 5.8 (i.e. latest)
> OS is Tru64 5.1 with SP1
>
> As usual, i'll summarize :)
--
Sincerely
Martin Petder
========================
Kungla Dialoog C.P.
tel. 6501200
fax 6501201
e-mail martin_at_kungla.ee
========================
Received on Wed Feb 14 2001 - 13:48:41 NZDT