Does anyone know if when the Swap Device / Page file in unix is carrying out Page / Swap In's and Page / Swap outs, does it go through the Unix Disk Cache ( I am presuming raw partitions are not being used ) ?
Therefore if there is paging activity on a system ( measured by sar -p, sar -g and... (0 Replies)
Hi guys,
Currently i have a IBM x366 running on Red Hat 4 attached to a DS4800. I've configured 10 LUNs to the server. Somehow, there is a lot buffer io error on device whenever it boot and when i issue the command dmesg.
My kernel is 2.6.9-22.ELsmp. I've updated the hba qla2300 firmware to... (2 Replies)
Hi everyone,
I wonder if I can canvas any opinions or thoughts (good or bad) on SAN attaching a SUN V880/490 to an EMC Clarion SAN?
At the moment the 880 is using 12 internal FC-AL disks as a db server and seems to be doing a pretty good job. It is not I/O, CPU or Memory constrained and the... (2 Replies)
Dera all
I have error repeating for two day, when I checked the error log by errpt command:
------------------------------------------------------------------------
LABEL: SC_DISK_ERR2
IDENTIFIER: 79B0DF89
Date/Time: Wed Oct 31 02:41:36 SAUS
Sequence Number: 9000... (1 Reply)
I received 4 pre-loaded ready-to-go intel servers running RedHat Enterprise Linux 3 kernel version 2.6.9-22.18 build date june 29, 2006. They are equiped with QLOGIC 2400 dual-port HBA cards. I need to know what utilities or command-sets are available to check these cards out? How do I get their... (4 Replies)
All,
when I do a df -h on a solaris 10 servers I see these san storage filesystems.
cx-fibpool/pyp_u2 588G 151M 345G 1% /pyp/u2
cx-fibpool/pyp_u3 588G 151M 345G 1% /pyp/u3
cx-fibpool/pyp_u4 588G 166G 345G 33% /pyp/u4
cx-fibpool/pyp_u5 ... (7 Replies)
Hi,
I am trying to backup a system ("client") through a slow network using "nim mksysb" on a nim server ("master")
The backup starts, but doesn't success.
Thanks if you can help me to resolve this problem :
Creating information file (/image.data) for rootvg...
Creating list of files to... (2 Replies)
Hi there
Now, Ive always support servers that used multi path software with dual cards, e.g. powerpath (emc ) / MPXIO. I got asked a question today, that if a solaris 8/9/10 host had 2 HBA cards, but no multipathing software, what would happen ?? Does the HBA card with the highest id on the... (2 Replies)
Dear Guru,
IHAC who is using Redhat Linux 5 on DELL M910.
When system bootup, it show "Buffer I/O error on device sdd" error message. Below is the "dmesg" output.
The scenario is:
If more external FC SAN disk LUN add, the device would change other name. So it will impact the raw device... (7 Replies)
Hi, I have a question regarding HBA configuration. Here are the commands' output:
# cfgadm -al | grep fc
c1 fc-fabric connected unconfigured unknown
c2 fc connected unconfigured unknown
c5 ... (11 Replies)
Discussion started by: aixlover
11 Replies
LEARN ABOUT MINIX
partx
PARTX(8) System Administration PARTX(8)NAME
partx - tell the kernel about the presence and numbering of on-disk partitions
SYNOPSIS
partx [-a|-d|-P|-r|-s|-u] [-t type] [-n M:N] [-] disk
partx [-a|-d|-P|-r|-s|-u] [-t type] partition [disk]
DESCRIPTION
Given a device or disk-image, partx tries to parse the partition table and list its contents. It can also tell the kernel to add or remove
partitions from its bookkeeping.
The disk argument is optional when a partition argument is provided. To force scanning a partition as if it were a whole disk (for example
to list nested subpartitions), use the argument "-" (hyphen-minus). For example:
partx --show - /dev/sda3
This will see sda3 as a whole-disk rather than as a partition.
partx is not an fdisk program - adding and removing partitions does not change the disk, it just tells the kernel about the presence and
numbering of on-disk partitions.
OPTIONS -a, --add
Add the specified partitions, or read the disk and add all partitions.
-b, --bytes
Print the SIZE column in bytes rather than in human-readable format.
-d, --delete
Delete the specified partitions or all partitions.
-g, --noheadings
Do not print a header line with --show or --raw.
-l, --list
List the partitions. Note that all numbers are in 512-byte sectors. This output format is DEPRECATED in favour of --show. Do not
use it in newly written scripts.
-n, --nr M:N
Specify the range of partitions. For backward compatibility also the format M-N is supported. The range may contain negative num-
bers, for example --nr -1:-1 means the last partition, and --nr -2:-1 means the last two partitions. Supported range specifications
are:
M Specifies just one partition (e.g. --nr 3).
M: Specifies the lower limit only (e.g. --nr 2:).
:N Specifies the upper limit only (e.g. --nr :4).
M:N Specifies the lower and upper limits (e.g. --nr 2:4).
-o, --output list
Define the output columns to use for --show, --pairs and --raw output. If no output arrangement is specified, then a default set is
used. Use --help to get list of all supported columns. This option cannot be combined with the --add, --delete, --update or --list
options.
-P, --pairs
List the partitions using the KEY="value" format.
-r, --raw
List the partitions using the raw output format.
-s, --show
List the partitions. The output columns can be selected and rearranged with the --output option. All numbers (except SIZE) are in
512-byte sectors.
-t, --type type
Specify the partition table type.
--list-types
List supported partition types and exit.
-u, --update
Update the specified partitions.
-S, --sector-size size
Overwrite default sector size.
-v, --verbose
Verbose mode.
-V, --version
Display version information and exit.
-h, --help
Display help text and exit.
EXAMPLES
partx --show /dev/sdb3
partx --show --nr 3 /dev/sdb
partx --show /dev/sdb3 /dev/sdb
All three commands list partition 3 of /dev/sdb.
partx --show - /dev/sdb3
Lists all subpartitions on /dev/sdb3 (the device is used as whole-disk).
partx -o START -g --nr 5 /dev/sdb
Prints the start sector of partition 5 on /dev/sdb without header.
partx -o SECTORS,SIZE /dev/sda5 /dev/sda
Lists the length in sectors and human-readable size of partition 5 on /dev/sda.
partx --add --nr 3:5 /dev/sdd
Adds all available partitions from 3 to 5 (inclusive) on /dev/sdd.
partx -d --nr :-1 /dev/sdd
Removes the last partition on /dev/sdd.
SEE ALSO addpart(8), delpart(8), fdisk(8), parted(8), partprobe(8)AUTHORS
Davidlohr Bueso <dave@gnu.org>
Karel Zak <kzak@redhat.com>
The original version was written by Andries E. Brouwer <aeb@cwi.nl>.
ENVIRONMENT
LIBBLKID_DEBUG=all
enables libblkid debug output.
AVAILABILITY
The partx command is part of the util-linux package and is available from Linux Kernel Archive <https://www.kernel.org/pub/linux/utils
/util-linux/>.
util-linux December 2014 PARTX(8)