about thumper aka sun fire x4500

[Patrick M. Hausen]

Hi all,

Am 18.01.2012 um 00:14 schrieb peter h <peter at hk.ipsec.se>:
> On Tuesday 17 January 2012 23.15, Ronald Klop wrote:
>> On Tue, 17 Jan 2012 18:59:08 +0100, peter h <peter at hk.ipsec.se> wrote:
>> 
>>> I have been beating on of these a few days, i have udes freebsd 9.0 and  
>>> 8.2
>>> Both fails when i engage > 10 disks, the system craches and messages :
>>> "Hyper transport sync flood" will get into the BIOS errorlog ( but  
>>> nothing will
>>> come to syslog since reboot is immediate)
>>> 
>>> Using a zfs radz of 25 disks and typing "zpool scrub" will bring the  
>>> system down in seconds.
>>> 
>>> Anyone using a x4500 that can comfirm that it works ? Or is this box  
>>> broken ?
>> 
>> Does it work if you make 3 raid groups of 8 disks and 1 spare?
> No, i did not test this.  
> I did some simple ones ( 5 disks in a raidz ) but what i wanted this box
> to do is a more powerful work. For smaller stuff i use simple hardware
> 
> I guess i'll buy some supermicro box instead.

But Ronald is right. I apologize for not reading your initial post thoroughly and
jumping on your suspicion that the hardware might be to blame.

Did you really create one vdev of 25 disks?

This is strongly discouraged by the documentation provided by Sun/Oracle.

You should (IIRC) never have more than 9 disk in a single vdev. Of course
you can join N vdevs of type, say, raidz2 to a single zpool.

See for example http://forums.freebsd.org/archive/index.php/t-4641.html

I'm writing from my iPad and cannot quickly find the Link to the Sun documentation.

Kind regards, HTH,
Patrick