Correct, it is for test server, not the production server which has the performance issue. The test and the production are setup the same.
I wanted to show the people how to utilize iostat to identify the I/O with the mount points.
But I do not have the root access on production.
I am no Solaris expert by any stretch, but some principles in performance tuning remain the same in every OS: does the production server have "real" disks or is it a virtual guest operating on virtual disks too? If the latter is the case it is probably the wrong place you are looking at anyway. Under the virtual disks there have to be some real devices - the LUNs on a storage box, members of a RAID in the host server, whatever. It is at these systems where you have to measure I/O, not on your virtualised guest.
Consider this (hypothetical) scenario: a server with 5 guests, g1-5 and a disk in this server where virtual disks for these guests reside. If g5 has heavy I/O this will influence the remaining available bandwidth which g1-4 could use. Therefore measurements on g1 because this guest has "intermittent performance issues" will tell you nothing about real issues, it will in fact only tell you when g5 has load peaks. You may not even know what you measure because maybe you don't know what g5 is doing and when.
It is a worthwhile effort to first get a detailed setup so that you can visualise the "flow" between the various interdependent parts of the machinery. Only then test/measure one component after the other to find out where the bottleneck is located.
hi people,
I'm trying to create a mount point, but am having no sucess at all, with the following:
mount -F ufs /dev/dsk/diskname /newdirectory
but i keep getting - mount-point /newdirectory doesn't exist.
What am i doing wrong/missing?
Thanks
Rc (1 Reply)
Hi All
I Know it is a really basic and stupid question perhaps...But I am going bonkers..
I have following valid paths in my unix system:
1. /opt/cdedev/informatica/InfSrv/app/bin
2. /vikas/cdedev/app
Both refer to the same physical location. So if I created one file 'test' in first... (3 Replies)
Hello all,
I'm sharing 1 volume from a Sun Storage array (6130), out to 2 servers. Created a slice on one server and mounted a filesystem. On the other server the disk already sees the created slice from the other server (shared throught the storage array, so mounted this filesystem as well.
... (1 Reply)
Hello, I have an AIX Oracle database server that I need to create a new filesystem/mount where I can create a new ORacle home to install 11g on. What are the needed steps to create this? There are mounts for Oracle 9i and 10g already. Thank you.
- David (7 Replies)
Dear Gurus,
Could it be possible to have the output of df -k sorted? The df -k output messed up after recent power trip.
Also, is there any folders that I should look into to reduce the root size (other than /var/adm and /var/crash) after server crash?
Many thanks in advance.
... (2 Replies)
Deart All,
can any one help to do this,
i need to change mount point in AIX 6
/opt/OM should be /usr/lpp/OM, how do i do....
Please help me Urgent issue (2 Replies)
How to create a new mount point with 600GB and add 350 GBexisting mount point
Best if there step that i can follow or execute before i mount or add diskspace IN AIX
Thanks (2 Replies)
Discussion started by: Thilagarajan
2 Replies
LEARN ABOUT FREEBSD
hv_storvsc
HYPER-V(4) BSD Kernel Interfaces Manual HYPER-V(4)NAME
hv_storvsc -- Hyper-V Storage Virtual Service Consumer
SYNOPSIS
To compile this driver into the kernel, place the following lines in the system kernel configuration file:
device hyperv
DESCRIPTION
The hv_storvsc driver implements the virtual store device for FreeBSD guest partitions running on Hyper-V. FreeBSD guest partitions running
on Hyper-V do not have direct access to storage devices attached to the Hyper-V server. Although a FreeBSD guest can access storage devices
using Hyper-V's full emulation mode, the performance in this mode tends to be unsatisfactory.
To counter the above issues, the hv_storvsc driver implements a storage Virtual Service Consumer (VSC) that relays storage requests from the
guest partition to the storage Virtual Service Provider (VSP) hosted in the root partition using the high performance data exchange infra-
structure provided by hv_vmbus(4) driver. The VSP in the root partition then forwards the storage related requests to the physical storage
device.
This driver functions by presenting a SCSI HBA interface to the Comman Access Method (CAM) layer. CAM control blocks (CCBs) are converted
into VSCSI protocol messages which are delivered to the root partition VSP over the Hyper-V VMBus.
SEE ALSO hv_ata_pci_disengage(4), hv_netvsc(4), hv_utils(4), hv_vmbus(4)HISTORY
Support for hv_storvsc first appeared in FreeBSD 10.0. The driver was developed through a joint effort between Citrix Incorporated, Micro-
soft Corporation, and Network Appliance Incorporated.
AUTHORS
FreeBSD support for hv_storvsc was first added by Microsoft BSD Integration Services Team <bsdic@microsoft.com>.
BSD September 10, 2013 BSD