[rescue] A tale of two Sun A5000's
jon at jonworld.com
Tue Mar 30 21:04:47 CDT 2010
Firmware is done via luxadm command (solaris) over the fcal.
Never heard of backplane issues with them.
On Solaris I remeber OS patches and array firmware had to be aligned.
Sent from my iPhone, pardon the typos!
317-829-4810 Indianapolis (USA)
On Mar 30, 2010, at 21:47, Mr Ian Primus <ian_primus at yahoo.com> wrote:
> Well, I've been tinkering with this Sun E4500 (running Linux), as
> well as a couple of A5000 disk arrays. The A5000's are both the 14-
> slot versions. I had one of the arrays working OK, but with
> occasional I/O errors I attributed to flakey old 9 gig disks. Well,
> I got some shiny new used disks in the mail, removed all the old 9's
> and inserted one new disk. It throws some errors, buffer I/O errors
> and command aborts. Low level format the disk with sg_format,
> partition, and go to mkfs the newly created partition - command
> aborts, the bus hangs up. Try again, same thing. Try another disk,
> same thing.
> Enter the other A5000. This one was dirty and beat up, and had a
> faulty display module, one missing power supply, and three bad fans.
> Replace the display module with a used one from eBay and it comes
> back to life. Throw my disks in that, connect it up... works
> perfectly (amid the din of worn-out fan bearings). So, now I know
> it's not the disks.
> So far, I've swapped both my I/O boards between the arrays, as well
> as the GBIC. Testing only with one disk in front slot 0, everything
> always works perfectly on the "beat up" array, but fails with
> command aborts and bus resets on the "nice" array - even when I keep
> the same disk, I/O boards and GBIC in the picture.
> Paging through the configuration menus, both of them seem to be
> configured the same way, the only difference I can see between the
> two is the working array runs firmware version 1.05 while the faulty
> array runs version 1.07.
> So, what is there left to swap? The only thing I can think of is a
> firmware bug or something - but where does the firmware live on this
> beast? How can I flash it? Or do I have to change the interconnect
> module in the middle of the thing?
> Any ideas?
> rescue list - http://www.sunhelp.org/mailman/listinfo/rescue
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