Sponsored Content
Operating Systems Solaris iostat as a tool for generating disk IO Post 302433236 by SmartAntz on Tuesday 29th of June 2010 04:10:06 AM
Old 06-29-2010
Quote:
Originally Posted by bartus11
To assign disk driver names to their logical names (c0t0d0s0 etc) run "format". It will display list of disks with their device path and logical name.

erm... i run the format command, how do know the EMC which device? sd0? ssd0 ?

Code:
root@mercury # format </dev/null
Searching for disks...done


AVAILABLE DISK SELECTIONS:
       0. c0t0d0 <SUN72G cyl 14087 alt 2 hd 24 sec 424>
          /pci@0,600000/pci@0/pci@8/pci@0/scsi@1/sd@0,0
       1. c0t1d0 <SUN72G cyl 14087 alt 2 hd 24 sec 424>
          /pci@0,600000/pci@0/pci@8/pci@0/scsi@1/sd@1,0
       2. c1t0d0 <DGC-RAID10-0326 cyl 61438 alt 2 hd 256 sec 40>
          /pci@0,600000/pci@0/pci@9/SUNW,qlc@0/fp@0,0/ssd@w5006016141e0a4cd,0
       3. c1t0d1 <DGC-RAID10-0326 cyl 61438 alt 2 hd 256 sec 40>
          /pci@0,600000/pci@0/pci@9/SUNW,qlc@0/fp@0,0/ssd@w5006016141e0a4cd,1
       4. c3t0d0 <DGC-RAID10-0326 cyl 61438 alt 2 hd 256 sec 40>
          /pci@2,600000/SUNW,qlc@0/fp@0,0/ssd@w5006016841e0a4cd,0
       5. c3t0d1 <DGC-RAID10-0326 cyl 61438 alt 2 hd 256 sec 40>
          /pci@2,600000/SUNW,qlc@0/fp@0,0/ssd@w5006016841e0a4cd,1
       6. emcpower0a <DGC-RAID10-0326 cyl 61438 alt 2 hd 256 sec 40>
          /pseudo/emcp@0
       7. emcpower1a <DGC-RAID10-0326 cyl 61438 alt 2 hd 256 sec 40>
          /pseudo/emcp@1
Specify disk (enter its number):
root@mercury #

 

10 More Discussions You Might Find Interesting

1. 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

2. AIX

AIX 5.2 5.3 disk performance exerciser tool

I'm search for a disk exerciser / load tool like iometer, iozone, diskx for IBM AIX 5.2 and 5.3 Because of a very bad disk performance on several AIX systems, I need to have a tool which is able to generate a disk load on my local and SAN disks. Does somebody knows a kind of tool which is... (5 Replies)
Discussion started by: funsje
5 Replies

3. 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

4. UNIX for Dummies Questions & Answers

Help a newbie with an iostat/disk space question.

Hello, On Solaris 10, iostat -E gives me the following results: sd1 Soft Errors: 0 Hard Errors: 0 Transport Errors: 0 Vendor: FUJITSU Product: MAY2073RCSUN72G Revision: 0501 Serial No: 0708S08M2L Size: 73.40GB <73400057856 bytes> Media Error: 0 Device Not Ready: 0 No Device: 0... (1 Reply)
Discussion started by: lieselr
1 Replies

5. Filesystems, Disks and Memory

A tcpdump-like tool for disk I/O?

Hi, can anyone please suggest a tool to dump i/o packets just like tcpdump does for network traffic. Basically I have a complex dataflow that needs to be optimized and I want to see how packets go to/from disk - what goes randomly and sequentially. Thanks (8 Replies)
Discussion started by: vsmi
8 Replies

6. 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

7. Programming

Tool to simulate non-sequential disk I/O (simulate db file sequential read) in C POSIX

Writing a Tool to simulate non-sequential disk I/O (simulate db file sequential read) in C POSIX I have over the years come across the same issue a couple of times, and it normally is that the read speed on SAN is absolutely atrocious when doing non-sequential I/O to the disks. Problem being of... (7 Replies)
Discussion started by: vrghost
7 Replies

8. Solaris

How to use IOSTAT command

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

9. 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

10. Solaris

Problem in getting total Disk space using iostat -En command

Hi Everyone, I try to calculate the total hard disk space of a solaris machine using iostat -En command. Iterating the output and summing up all the number present near the Size: will give the exact size of the harddisk. But it is not working for a machine. This command works in many flavors... (2 Replies)
Discussion started by: prasankn
2 Replies
vxdestroy_lvmroot(1M)													     vxdestroy_lvmroot(1M)

NAME
vxdestroy_lvmroot - remove LVM root disk and associated LVM volume group SYNOPSIS
vxdestroy_lvmroot [-v] [-b] lvm_root_disk DESCRIPTION
The vxdestroy_lvmroot command tears down and removes the LVM volume group associated with the specified physical disk. This is done by removing the volumes in the volume group and then removing the volume group. OPTIONS
-b Invokes the setboot command to change the primary boot disk to the VxVM root disk from which the system was booted (if the pri- mary boot disk is not already set to this disk). The alternate boot device remains unchanged. If the -v option is also speci- fied, the settings of the primary and alternate boot devices are displayed. -v Outputs verbose messages including a timestamp that indicates major operations being performed. ARGUMENTS
lvm_root_disk Specifies the device name of the LVM root disk that is to be destroyed, along with its entire volume group. EXAMPLES
This example shows the vxdestroy_lvmroot command invoked in its simpliest form: /etc/vx/bin/vxdestroy_lvmroot c5t1d0 # /etc/vx/bin/vxdestroy_lvmroot -v -b c3t0d0 Are you sure about destroying c3t0d0 (imported on VG /dev/vg02) ? YES vxdestroy_lvmroot 06:02: Tearing down /dev/vg02 on device c3t0d0 vxdestroy_lvmroot 06:02: Unmounting and removing any volumes associated with /dev/vg02 vxdestroy_lvmroot 06:02: removing logical volume /dev/vg02/lvol1 vxdestroy_lvmroot 06:02: removing logical volume /dev/vg02/lvol2 vxdestroy_lvmroot 06:02: removing logical volume /dev/vg02/lvol3 vxdestroy_lvmroot 06:02: removing logical volume /dev/vg02/lvol4 vxdestroy_lvmroot 06:02: removing logical volume /dev/vg02/lvol5 vxdestroy_lvmroot 06:02: removing logical volume /dev/vg02/lvol6 vxdestroy_lvmroot 06:02: removing logical volume /dev/vg02/lvol7 vxdestroy_lvmroot 06:02: removing logical volume /dev/vg02/lvol8 vxdestroy_lvmroot 06:02: Removing Volume Group /dev/vg02 vxdestroy_lvmroot 06:02: Removing device files in /dev/vg02 vxdestroy_lvmroot 06:02: Removing LVM Physical Volume c3t0d0 vxdestroy_lvmroot 06:02: Removing LVM Physical Volume c1t1d3 vxdestroy_lvmroot 06:02: Removing LVM Physical Volume c1t1d4 vxdestroy_lvmroot 06:02: Removing LVM Physical Volume c1t1d5 vxdestroy_lvmroot 06:03: Current setboot values: vxdestroy_lvmroot 06:03: Primary: 0/0/6/0/0.0.0 vxdestroy_lvmroot 06:03: Alternate: 0/0/1/0/0.1.0 vxdestroy_lvmroot 06:03: Making disk c0t1d0 (0/0/1/0/0.1.0) the primary boot disk vxdestroy_lvmroot 06:03: Removal of device c3t0d0, volume group /dev/vg02 was successful SEE ALSO
cpio(1), dd(1), fsck(1M), setboot(1M) vxbootsetup(1M) vxcp_lvmroot(1M) vxres_lvmroot(1M) VxVM 5.0.31.1 24 Mar 2008 vxdestroy_lvmroot(1M)
All times are GMT -4. The time now is 04:24 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy