ZFS get process I/O information

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Process Scheduling Information Extraction

I want to extract the process having highest utilization on each processor core and then output its information (PID etc.) to a file. How can I do it by using either top or ps command? Thanks.

2. Solaris

Need Information About Process

Hi All:- 1- i am working in unix system that is runnign some script 2- this script put the log file into specific folder 3- the log does not include the start time of the script and the end time What i need to know what is the duration time for each request Note:- I don't any thing...

3. Programming

reading process information

Can any one tell me is there any problem in reading the /proc/#/status file for finding out the exact process name..???

4. Shell Programming and Scripting

get Thread information from process

Hello all im trying to build small script in tcsh that will monitor some process that are making some api calles to some server . first of all im trying to find way to see how many threads each process is using , and else how can i print each Thread id . can it be done ? ( using sunOs )

5. UNIX for Dummies Questions & Answers

Process information

What sort of statistical information related to a running process can we retrieve using commands? For example, we can get the process id, memory usage and running time of a process using the commands ps and ipcs . Can we get any more information about a running process? Please list them. Also...

6. Shell Programming and Scripting

get process information remotely

Hello, We have a domain where instances attached to it are in multiple machines. Is there any way that I can get the process information of the domain of a secondary server from the primary. ssh authentication is enabled on the functional ID and if I scsu to that ID and do the ssh: $ssh machine2...

7. Shell Programming and Scripting

Report Process Information (Help me)

I need a script to record top 5 processes to a file. I need the timestamp, cpu and memory utilization along with the process ID. Thanks in advance!

8. Programming

Obtaining Process information on AIX

I have written a program to collect some performance metrics on and AIX box, but I'm having difficultly getting the process information. I'm lead to believe that I'm not getting the correct information because I'm trying to run the program on AIX 5.1 (5100-03), but I'm not convinced as the...

9. Programming

Process Run time information

Hello, I am working on Sun Solaris 5.7. I am trying to read the running time of a process through a C program. One way I am reading it is by using the command ps -<pid> -f The other way is from the struct psinfo_t which is there under /proc/pid/psinfo. However, the two times are...

10. UNIX for Advanced & Expert Users

Process Information

Hi, If we have a process p1 running and then p2 attempts to shutdown p1. Is there a means for p1 to know who has requested him to shutdown Thanks and regards, Reji

LEARN ABOUT FREEBSD

zfsboot

ZFSBOOT(8)						    BSD System Manager's Manual 						ZFSBOOT(8)

NAME

     zfsboot -- bootcode for ZFS on BIOS-based computers

DESCRIPTION

     zfsboot is used on BIOS-based computers to boot from a filesystem in a ZFS pool.  zfsboot is installed in two parts on a disk or a partition
     used by a ZFS pool.  The first part, a single-sector starter boot block, is installed at the beginning of the disk or partition.  The second
     part, a main boot block, is installed at a special offset within the disk or partition.  Both areas are reserved by the ZFS on-disk specifi-
     cation for boot use.  If zfsboot is installed in a partition, then that partition should be made bootable using appropriate configuration and
     boot blocks described in boot(8).

BOOTING

     The zfsboot boot process is very similar to that of gptzfsboot(8).  One significant difference is that zfsboot does not currently support the
     GPT partitioning scheme.  Thus only whole disks and MBR partitions, traditionally referred to as slices, are probed for ZFS disk labels.  See
     the BUGS section in gptzfsboot(8) for some limitations of the MBR scheme support.

USAGE

     zfsboot supports all the same prompt and configuration file arguments as gptzfsboot(8).

FILES

     /boot/zfsboot  boot code binary
     /boot.config   parameters for the boot block (optional)
     /boot/config   alternative parameters for the boot block (optional)

EXAMPLES

     zfsboot is typically installed using dd(1).  To install zfsboot on the ada0 drive:

	   dd if=/boot/zfsboot of=/dev/ada0 count=1
	   dd if=/boot/zfsboot of=/dev/ada0 iseek=1 oseek=1024

     If the drive is currently in use, the GEOM safety will prevent writes and must be disabled before running the above commands:

	   sysctl kern.geom.debugflags=0x10

     zfsboot can also be installed in an MBR slice:

	   gpart create -s mbr ada0
	   gpart add -t freebsd ada0
	   gpart create -s BSD ada0s1
	   gpart bootcode -b /boot/boot0 ada0
	   gpart set -a active -i 1 ada0
	   dd if=/boot/zfsboot of=/dev/ada0s1 count=1
	   dd if=/boot/zfsboot of=/dev/ada0s1 iseek=1 oseek=1024

     Note that commands to create and populate a pool are not shown in the example above.

SEE ALSO

     dd(1), boot.config(5), boot(8), gptzfsboot(8), loader(8), zfsloader(8), zpool(8)

HISTORY

     zfsboot appeared in FreeBSD 7.3.

AUTHORS

     This manual page was written by Andriy Gapon <avg@FreeBSD.org>.

BUGS

     Installing zfsboot with dd(1) is a hack.  ZFS needs a command to properly install zfsboot onto a ZFS-controlled disk or partition.

BSD
								September 15, 2014							       BSD

Solaris