I am using Coraid (Model: ST3750330NS)
OS is CentOS:
Distributor ID: CentOS
Description: CentOS release 6.6 (Final)
Release: 6.6
Codename: Final
kernel:
Linux 2.6.32-71.el6.x86_64 #1 SMP Fri May 20 03:51:51 BST 2011 x86_64 x86_64 x86_64 GNU/Linux
8 GB RAM, 2 x Intel(R) Pentium(R) D CPU 3.00GHz
I use this server (directory connected to shelf through crossover cable) os mail server.
Mail's spool in on etherd device.
I am having big load problems (> 200!)
I would like to investigate if this can be related to file system issue or network issue
I set mtu 9000 to dedicated ethernet:
0a:00.0 Ethernet controller: Intel Corporation 82572EI Gigabit Ethernet Controller (Copper) (rev 06)
eth2 Link encap:Ethernet HWaddr 00:15:17:CB:57:AB
inet6 addr: fe80::215:17ff:fecb:57ab/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:9000 Metric:1
In /var/log/messages I see this:
Call Trace:
[<ffffffff8120051f>] ? security_inode_permission+0x1f/0x30
[<ffffffff8117ab4d>] ? __link_path_walk+0xfd/0x1040
[<ffffffff814c97ae>] __mutex_lock_slowpath+0x13e/0x180
[<ffffffff811794b1>] ? path_put+0x31/0x40
[<ffffffff814c964b>] mutex_lock+0x2b/0x50
[<ffffffff81178b7f>] lock_rename+0x3f/0xe0
[<ffffffff8117c133>] sys_renameat+0x113/0x260
[<ffffffff81135837>] ? handle_pte_fault+0xf7/0xad0
[<ffffffff81171b14>] ? cp_new_stat+0xe4/0x100
[<ffffffff81180210>] ? filldir+0x0/0xe0
[<ffffffff810d40a2>] ? audit_syscall_entry+0x272/0x2a0
[<ffffffff8117c29b>] sys_rename+0x1b/0x20
[<ffffffff81013172>] system_call_fastpath+0x16/0x1b
and this is the output of "top" command:
top - 17:15:32 up 1:29, 1 user, load average: 160.25, 164.19, 242.60
Tasks: 597 total, 2 running, 595 sleeping, 0 stopped, 0 zombie
Cpu(s): 10.2%us, 5.2%sy, 0.0%ni, 0.0%id, 84.1%wa, 0.0%hi, 0.5%si, 0.0%st
Mem: 8059612k total, 5515976k used, 2543636k free, 1737132k buffers
Swap: 10289144k total, 0k used, 10289144k free, 2254068k cached
(notice high I/O wait)
# aoe-version
aoetools: 35
installed aoe driver: 47
running aoe driver: 47
Do you have any suggestion?
Thank you very much!
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