puzzled with VxVM and iostat..


 
Thread Tools Search this Thread
Operating Systems Solaris puzzled with VxVM and iostat..
# 1  
Old 09-28-2008
puzzled with VxVM and iostat..

Hi all,
One disk on my root disk group failed in Veritas Volume manager.
I replaced it with new one, initialized it and placed it with removed one.
it Synchronized plexes and everything is fine. this node was second standby node of Sun cluster. yesterday I had failure on active node with boot disk (same as second node) .. but what is puzzled me here it has mirror and it was alive .. it gives me warning not even error like:

Sep 27 22:07:19 host-1 scsi: [ID 107833 kern.warning] WARNING: /ssm@0,0/pci@18,700000/scsi@2/sd@0,0 (sd3):
Sep 27 22:07:19 host-1 disk not responding to selection
Sep 27 22:07:19 host-1 vxio: [ID 107055 kern.warning] WARNING: VxVM vxio V-5-3-0 voldmp_errbuf_sio_start: Failed to flush the error buffer 0xdbf3c330 on device0x12800000003 to DMP
Sep 27 22:07:19 host-1 vxio: [ID 771159 kern.warning] WARNING: VxVM vxio V-5-0-2 Subdisk rootdg_2-01 block 64703344: Uncorrectable read error


First 2 lines are from system not from VxVM but after that vxio informed.
So it was at 22:07:19 and 30 seconds it continued give this log to terminal after what cluster said :

Sep 27 22:07:59 host-1 cl_dlpitrans: [ID 624622 kern.notice] Notifying cluster that this node is panicking
Sep 27 22:07:59 host-1 unix: [ID 836849 kern.notice]
Sep 27 22:07:59 host-1 ^Mpanic[cpu0]/thread=2a100045d20:
Sep 27 22:07:59 host-1 unix: [ID 562397 kern.notice] Failfast: Aborting because "rgmd" died 30 seconds ago.




and went to reboot ..

So why cluster got this warning like whole root-dg failured and went to reboot?!!! SmilieSmilie

and after that Application swithed to second node (where I changed failured disk not long ago and everything is fine) .. so there it started normally but I see in iostat that on first disk (exactly that was replaced) ..it has very big IO than other mirrored disk. So how Veritas synchronize, I mean how it works. Mirrored disks in VxVM always must have same IO ???

it is some time :
extended device statistics
r/s w/s kr/s kw/s wait actv wsvc_t asvc_t %w %b device
0.4 1.7 17.1 28.0 0.2 0.0 90.7 14.3 19 1 c1t0d0
1.1 2.1 61.3 17.5 0.0 0.0 0.0 11.8 0 1 c1t1d0

and sometimes:

extended device statistics
r/s w/s kr/s kw/s wait actv wsvc_t asvc_t %w %b device
0.0 0.2 0.0 1.6 1.0 0.0 5000.0 5.5 100 0 c1t0d0
0.0 0.2 0.0 1.6 0.0 0.0 0.0 5.4 0 0 c1t1d0


??!!!!!!!! SmilieSmilieSmilieSmilieSmilieSmilie

Thanks all
# 2  
Old 09-28-2008
providing the explorer from the system will be good or you may want to log a call with SUN/Veritas simultaneously
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Programming

Serioulsy puzzled here.

Facebook had a mathematics problem which was as thus:- 6/2(1+2) = ? Answer is 9. My ancient Casio FX 730P mini computer written exactly as that gives 'error' only. Now take a look at shell versions, and a python version:- Last login: Wed Sep 14 18:04:04 on ttys000 AMIGA:barrywalker~>... (6 Replies)
Discussion started by: wisecracker
6 Replies

2. AIX

Help with iostat

Hello, I support Oracle 11g on AIX 7.1. Using the command $iostat -D hdisk2 hdisk4 hdisk5 5 I get the following output: hdisk5 xfer: %tm_act bps tps bread bwrtn 44.0 1.4M 178.2 1.4M 14.7K read: ... (3 Replies)
Discussion started by: oracledba1024
3 Replies

3. OS X (Apple)

Puzzled by Find

I'm new to playing with the command line on OS X and am puzzled by the response I am getting from the find command. I have a file structure similar to the following /Volumes/ ../Drobo/ ../../Pictures/ ../../../Image 1/ ../../../../Image 1.jpg ../../../../Previews/ ../../../../../Image... (2 Replies)
Discussion started by: Denrael
2 Replies

4. Shell Programming and Scripting

Puzzled with hexdump, hd and ln

How to create a symbolic link to a command with certain argument? When I man hexdump, it is said in the man page that "-C Canonical hex+ASCII display...Calling the command hd implies this option". Actually it is. hd equals to hexdump -C. And then I examined the ln command but find it is a... (5 Replies)
Discussion started by: vistastar
5 Replies

5. Red Hat

iostat on Redhat 5

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)
Discussion started by: uxadmin007
1 Replies

6. Shell Programming and Scripting

iostat on solaris

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)
Discussion started by: achak01
5 Replies

7. Solaris

Puzzled over over the relationship between the partition and geometry of hard disk.

Not sure why solaris couldn't detect the geometry of a hard disk which has a working OS of winxp pro. Is it due to the different OS that the partition information is stored in different location? When I type '"format" it is shown as below, c3d1 < drive type unknown>... (5 Replies)
Discussion started by: just.srad
5 Replies

8. Filesystems, Disks and Memory

Help with iostat ...

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)
Discussion started by: dj_is
3 Replies

9. Programming

C++ Puzzled !!

#include <iostream.h> class A { public: void f(void) { cout << "hello world \n" ; } }; void main() { A *a; a = 0 ; a->f(); // OOPs...Am I mad? What am I going to do ? } (1 Reply)
Discussion started by: RipClaw
1 Replies

10. Programming

Puzzled with user ID.

I hava been reading AUPE these days. I really am puzzled with the presentation of real user(group) ID, effective user(group) ID. How do they effect on the execution of process? What's the relationship between them? Appreciate your help. (4 Replies)
Discussion started by: lethefe
4 Replies
Login or Register to Ask a Question