Hi all,
i have run iostat -em, and get below result. Can i know what is this output meaning, and how to fix that problem.
iostat -em
---- errors ---
device s/w h/w trn tot
sd7 0 1 0 1
sd8 1 1 0 2
sd9 0 1 0 1
sd10 0 ... (2 Replies)
All,
I am attempting to help tune a Sun for better performance (mainly for SAS 9.1), and have found indicators pointing to poor I/O utilization. I have run iostat -cx, and found one device in particular where the %w is in the 90's during processing. I have a feeling that this is where the SAS... (3 Replies)
Hi All AIX expert
i'm using AIX 5.2
When i execute this command which is :
----------------------------------------------------------------------
>> iostat -a
System configuration: lcpu=4 disk=30
tty: tin tout avg-cpu: % user % sys % idle % iowait
... (2 Replies)
Sorry for asking basics. What exactly is the situation if device ID is same in iostat -Eni. What we must do then? Is there any relation b/w iostat and cfgadm? (3 Replies)
Friends.
I have to compare iostat -x output with a tool on solaris. Now there is column called wait in the output field which is showing zero. Now, in order to create some load on my system this is what i am doing
I am creating a file using dd command , the size of which is... (5 Replies)
A find for the "iostat" command on a redhat 5 update 4 comes back with no results.
Any separate rpm needs to be installed to get the binary for this ?
Thanks in advance. (1 Reply)
I all,
I would like to know what are the causes of :
-soft error
-harderror
-transport error
and how to avoid and repare them.
I got the iostat out put below:
atng-mm01% iostat -En | grep -i hard
c0t0d0 Soft Errors: 1 Hard Errors: 0 Transport Errors: 0
c0t0d1 ... (3 Replies)
Hi Unix experts,
I have a question regarding a disk failure seen in "iostat -Enm" output:
# iostat -Enm
c1t0d0 Soft Errors: 0 Hard Errors: 7 Transport Errors: 9
Vendor: FUJITSU Product: MAU3073NCSUN72G Revision: 0802 Serial No: 0514F005M0
Size: 73.40GB <73400057856 bytes>
Media... (5 Replies)
Hello everyone,
Can you please explain me what kind of information do IOSTAT show ?
iostat -xnz 3 show me those informations:
The I/O of the c0t0d0 disk is normal ?
extended device statistics
r/s w/s kr/s kw/s wait actv wsvc_t asvc_t %w %b device
0.0 ... (3 Replies)
Discussion started by: adilyos
3 Replies
LEARN ABOUT CENTOS
nfsiostat
nfsiostat(8) System Manager's Manual nfsiostat(8)NAME
nfsiostat - Emulate iostat for NFS mount points using /proc/self/mountstats
SYNOPSIS
nfsiostat [[<interval>] [<count>]] [<options>][<mount_point>]
DESCRIPTION
The nfsiostat command displays NFS client per-mount statisitics.
<interval>
specifies the amount of time in seconds between each report. The first report contains statistics for the time since each file sys-
tem was mounted. Each subsequent report contains statistics collected during the interval since the previous report.
<count>
If the <count> parameter is specified, the value of <count> determines the number of reports generated at <interval> seconds apart.
if the interval parameter is specified without the <count> parameter, the command generates reports continuously.
<options>
Define below
<mount_point>
If one or more <mount point> names are specified, statistics for only these mount points will be displayed. Otherwise, all NFS
mount points on the client are listed.
OPTIONS -a or --attr
displays statistics related to the attribute cache
-d or --dir
displays statistics related to directory operations
-h or --help
shows help message and exit
-l LIST or --list=LIST
only print stats for first LIST mount points
-p or --page
displays statistics related to the page cache
-s or --sort
Sort NFS mount points by ops/second
--version
show program's version number and exit
FILES
/proc/self/mountstats
SEE ALSO iostat(8), mountstats(8), nfsstat(8)AUTHOR
Chuck Lever <chuck.lever@oracle.com>
15 Apr 2010 nfsiostat(8)