DL370 G6 stalling

[BDi_Chopper]

Hi all,

I have the above server with P410i - 512MB / 8x144GB SAS in RAID 5+Spare, 32GB RAM, RPSU.

I have a massive problem with a fairly large installation.  The server is simply stalling with SBS 2011 STD installed.  We have removed all third party software now and there are no indications that it is the O/S.

The disks seem to go mental for about a minute before the whole system grinds to a halt. After 10-20 minutes it comes back and is completely normal.  

I am thinking there has to be a problem with the disks / array controller but thought I would post on here first.

Has anyone seen this before?  I have noticed that the caching is disabled on Read/Write and Drives - could this make any difference?

Many thanks in advance for any pointers.

M 

[srlg]

there is a SS8.7 64bit version you can use.