[Xen-devel] harddisk offline frequently when running vm

To:	xen-devel@xxxxxxxxxxxxxxxxxxx
Subject:	[Xen-devel] harddisk offline frequently when running vm
From:	yingbin wang <yingbin.wangyb@xxxxxxxxx>
Date:	Thu, 22 Apr 2010 14:10:42 +0800
Delivery-date:	Wed, 21 Apr 2010 23:11:40 -0700
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without starting vm, we did decompression stress test. harddisk
offline did not happen.
when some vms are running, we did decompression stress test. harddisk
offline happened frequently.

We suspect that system interruption loss causes the problem.
did anybody meet this problem? or have an idea?

our env :
hardware :
     Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz
     SCSI storage controller: LSI Logic / Symbios Logic SAS1068E
PCI-Express Fusion-MPT SAS (rev 08)
compile env and filesystem :
     Redhat AS 5.4
kernel:
     pv_ops 2.6.31.13

xm info :
-----------------------------------------------------------------
host                   : r02k08015
release                : 2.6.31.13xen
version                : #1 SMP Tue Apr 13 20:38:51 CST 2010
machine                : x86_64
nr_cpus                : 16
nr_nodes               : 2
cores_per_socket       : 4
threads_per_core       : 2
cpu_mhz                : 2266
hw_caps                :
bfebfbff:28100800:00000000:00001b40:009ce3bd:00000000:00000001:00000000
virt_caps              : hvm
total_memory           : 24539
free_memory            : 15596
node_to_cpu            : node0:0,2,4,6,8,10,12,14
                       node1:1,3,5,7,9,11,13,15
node_to_memory         : node0:3589
                       node1:12007
node_to_dma32_mem      : node0:2584
                       node1:0
max_node_id            : 1
xen_major              : 4
xen_minor              : 0
xen_extra              : .0
xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32
hvm-3.0-x86_32p hvm-3.0-x86_64
xen_scheduler          : credit
xen_pagesize           : 4096
platform_params        : virt_start=0xffff800000000000
xen_changeset          : unavailable
xen_commandline        : dom0_mem=10240M
cc_compiler            : gcc version 4.1.2 20080704 (Red Hat 4.1.2-46)
cc_compile_by          : root
cc_compile_domain      :
cc_compile_date        : Tue Apr 13 23:04:16 CST 2010
xend_config_format     : 4
---------------------------------------------------------------------------

Cheers,
wyb

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[Xen-devel] harddisk offline frequently when running vm